Top Linux Systems Administrator Skills

Below we've compiled a list of the most important skills for a Linux Systems Administrator. We ranked the top skills based on the percentage of Linux Systems Administrator resumes they appeared on. For example, 11.7% of Linux Systems Administrator resumes contained Linux as a skill. Let's find out what skills a Linux Systems Administrator actually needs in order to be successful in the workplace.

The six most common skills found on Linux Systems Administrator resumes in 2020. Read below to see the full list.

1. Linux

high Demand
Here's how Linux is used in Linux Systems Administrator jobs:
  • Mentor other systems administrators in engineering, installation, configuration, testing and Administration of Linux servers.
  • Monitored everyday systems and evaluate availability of all server resources and perform all activities for Linux servers.
  • Led in-house and consultant team in large-scale Linux server upgrade which significantly enhanced system performance.
  • Monitor and maintain appropriate security environments and policies on Windows and Linux servers.
  • Provided Linux technical support and prepared technical documentation for check in verification.
  • Tune existing Debian Linux workstations to serve as Java development environments.
  • Installed and monitored several business applications running over Linux/Windows OS.
  • Analyzed, upgraded and monitored Linux server vulnerabilities utilizing S3.
  • Administered Linux servers for several functions including managing Apache/Tomcat server.
  • Worked with previous Linux systems administrator to secure existing systems.
  • Configured Linux system administration tasks on HPC computing clusters.
  • Created the first company-wide Linux-to-cluster notification system ~300 users.
  • Worked with a Senior Linux Administrator to eliminate vulnerabilities.
  • Supported Linux based network and technical end-user assistance.
  • Developed automated scripts for performing regular Linux tasks.
  • Experienced in Installation of Linux operating systems.
  • Installed and configured databases on Unix/Linux platforms
  • Experience in administering RedHat Linux.
  • Scheduled jobs and automating processes using CRON and AT and Created and maintained file systems and performed RAID configuration on LINUX.
  • Configured our Network to integrate Windows systems with Linux systems including SAMBA sharing, Print servers, and Router configurations.

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2. Veritas

high Demand
Here's how Veritas is used in Linux Systems Administrator jobs:
  • Used VERITAS clustering for high availability of business critical applications.
  • Configured and administrated database cluster using VERITAS cluster.
  • Administered Backup and Restore operations using VeritasNetBackup 4.1.
  • Provided solutions to the client about Disk mirroring and RAID implementation using Solstice Disk Suite and VERITAS volume manager and cluster.
  • Experience with VERITAS Cluster server for creating high available environments for NFS, Web logic and Send mail agents.
  • Implemented RAID 0, 1 and 5 & 10 for creation of logical volumes using VERITAS Volume Manager.
  • Experienced in redefining volume groups, migrating, mirroring logical volume using VERITAS VOLUME MANAGER and SDS.
  • Install and configure VERITAS NetBackup versions 5x and 6x client on all server installation and server builds.
  • Experience with the installation & configuration of volume management using VERITAS Volume Manager, VxFS file system.
  • Involved in Firmware/ OS/ VERITAS upgrade; working with vendor and Field Engineers on various hardware issues.
  • File system management, data recovery and backup using VERITAS volume manager and Logical Volume manager.
  • Configured and Supported VERITAS Cluster Server 5 for various agents including SAP, ORACLE, DNS.
  • Administer, Configure and Troubleshoot VERITAS Volume Manager, File Systems and VERITAS Cluster Server.
  • Installed and Configured VERITAS Net backup client and advanced client software's in Production servers.
  • Configured VERITAS NetBackup policies & schedules as per the client requirement on target file systems.
  • Experienced in Volume management, Disk Management, software RAID solutions using VERITAS Volume manager.
  • Install Configure and Troubleshoot VERITAS Cluster Server (VCS) for High-Availability of Production systems.
  • Manage existing high available application services using Linux RAC cluster and VERITAS CLUSTER server.
  • Managed systems volume using SVM, LVM, NAS, VERITAS volume manager.
  • Monitored VERITAS Cluster server, creating service groups adding resources & enabling features.

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3. Web Servers

high Demand
Here's how Web Servers is used in Linux Systems Administrator jobs:
  • Administered Linux servers for several functions include managing Apache web servers, mail server and firewalls in both development and production.
  • Install, configure and managing the Apache Web Servers and experience on redirecting rules on Apache.
  • Administrated the Apache web servers for the corporate Internet & Intranet web sites.
  • Set up Log Server and analyzed options to better secure public web servers.
  • Installed web servers and PostgreSQL database servers* Deployed thin client Linux terminals
  • Configured Apache Web Servers to include modules and virtual hosts i.e.
  • Maintain Web Servers, file servers, firewalls and directory services.
  • Handled PCI compliance for all publicly accessible Linux web servers.
  • Set up web servers, files servers, and firewalls.
  • Deploy LAMP Stacks and Apache web servers with Puppet.
  • Administered Apache web servers, Oracle & DB2 databases.
  • Set round robin for web servers.
  • Managed Corporate and Apache Web servers.
  • Installed web servers using Apache.
  • Monitored web servers using Nagios monitoring tool.
  • Administer CISCO content switching and load balancing switches to provide redundancy in Web Servers, networks, and Websphere clone agents.
  • Utilized f5 Big IP load balancer web interface to control traffic on web servers during system maintenance.
  • Implemented a nginx cluster across 5 web servers providing access for 10,000+ unique visitors a month.
  • Use Nagios to monitor Linux system activities and set and configure Apache web servers.
  • Configure Apache Web servers, virtual hosting and day to day web site.

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4. File System

high Demand
Here's how File System is used in Linux Systems Administrator jobs:
  • Standardized processes developed on established protocols in configuration of cross platform file system mounting & security resulting in reduced implementation time.
  • Administered and configured Logical Volume Manager which involve creating and modifying File Systems.
  • Involved in Logical Volume Management, File system Management and Package Management.
  • Experience in network configuration and troubleshooting and partitioning file systems.
  • File System management and package management.
  • Managed file systems and configuration.
  • Configured distributed file systems and administering NFS server and NFS clients and editing auto-mounting mapping as per system / user requirements.
  • Configured NIC Bonding on the servers, created File systems, extended the Logical Volume space as per the business requirements.
  • Used SAM to Administer HP Servers for Software package, patches, user management, and Volume/Group and file system creation.
  • Worked with Oracle DBA team for the configuration of file systems like extending online file system as when required using VxVM.
  • Perform daily backup operation, ensuring all required file systems and system data are successfully backed up to the appropriate media.
  • Performed Fine tuning, Kernel debugging, process scheduling, disk and file system I/O, kernel internals, TCP/IP communications.
  • Worked in ZFS and QFS, and fixed the problems occurred, set the quota and reservations for such file systems.
  • Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager commands.
  • Implemented features of ZFS file system browser user interface (BUI) using client-server architecture model and Java EE Technologies.
  • Configured GPFS (General Parallel File System) to allow multiple systems and application to share common pool of storage.
  • Configured and managed Global File System (GFS) in Linux Servers, Creating and managing Cluster suite using GFS.
  • Resolved system errors and crashes, disk space problems, huge file sizes, and file system full errors.
  • Experience on handling file system, disk management & boot PROM and Managing the problems associated With file system.
  • Worked on various types of file systems and volume management solutions: ZFS, LVM, VXVM and SVM.

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5. Red Hat

high Demand
Here's how Red Hat is used in Linux Systems Administrator jobs:
  • Involved in preparation of technical design specifications, installation and configuration of Red Hat Enterprise Linux.
  • Performed installation, configuration and administration of Linux servers running Red Hat Linux.
  • Configured and performed troubleshooting Samba over Red Hat Linux Servers.
  • Experience installing and configuring SSH (Secure Shell) encryption in order to access securely on Ubuntu and Red hat Linux.
  • Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite server.
  • Performed Red Hat Linux Kick start installations on Red hat 4.x/5.x, performed Red Hat Linux Kernel Tuning, memory upgrades.
  • Worked with Red Hat Enterprise support personnel on satellite channel, to troubleshoot Red Hat Enterprise satellite server regarding updates.
  • Installed and updated software packages from Red Hat Network, a remote repository or from the local file system.
  • Created users, manage user permissions, maintain User & File System quota on SUSE and Red Hat Linux.
  • Managed, maintained and migrated the Red Hat Satellite server v5.5/5.6 for installing security patches on Linux servers.
  • Installed Oracle on Red Hat Linux 5, as a part of support to DBA and development team.
  • Updated the systems using the Red Hat Enterprise Network (RHN) and managed and monitoring through RHN.
  • Performed monthly system maintenance on Red Hat Linux Systems and Cisco Routers by rebooting the servers and switches.
  • Install firmware upgrades, kernel patches, system configuration, and performance tuning on Red Hat Linux servers.
  • Worked with Red Hat Linux tools like RPM and yum to install packages and patches for RedHat Linux.
  • Spearheaded the upgrade from Red Hat Linux 6.2 to 9 and troubleshot the Linux system when problems occurred.
  • Perform Red Hat Linux Kick start installations, administer Linux kernel, memory upgrades and swaps area.
  • Install, troubleshoot, and maintain Red Hat Linux servers in an enterprise networked data center environment.
  • Build and install new Red Hat and CentOS computers for internal engineering personnel and external customers.
  • Experience in configuring Red Hat Cluster Suite, VERITAS Cluster Server, and HP Service Guard.

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6. NFS

high Demand
Here's how NFS is used in Linux Systems Administrator jobs:
  • Provided 24/7 technical support to Production and development environments Experience in configuration of NFS.
  • Performed NFS configuration and administration.
  • Developed script to verify CIFS and NFS mounts on servers and prepared documentation for handling stale NFS/CIFS mounts.
  • Implemented the file sharing on the network by configuring NFS on the system to share essential resources.
  • Installed, configure and manage network file sharing services to include FTP, NFS and SAMBA.
  • Installed, configured and supported NFS / NIS / NIS+ in a heterogeneous environment.
  • Managed the NFS, Auto mount and Service Management Facility (SMF).
  • Configured server logs on to a central logging server using the NFS configuration.
  • Configured and administered NFS, NIS, Auto mounts and Network Printers.
  • Configure servers and workstations with static IP, NIS/NFS, software updates.
  • Configured and maintained NFS, FTP and SSH on Linux server.
  • Set up NFS and Samba File sharing on Linux and Windows.
  • Set up and configured NFS server with clients successfully mounting.
  • Installed and configured NFS, NIS and FTP Servers.
  • Analyze and solved NFS drive mount and access issues.
  • Set up directory shares with NFS servers and clients.
  • Managed NFS and Samba as well as Apache.
  • Network file and system management (NFS).
  • Installed and configured samba and NFS.
  • Administered NFS server and NFS shares.

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7. DNS

high Demand
Here's how DNS is used in Linux Systems Administrator jobs:
  • Designed and implemented system infrastructure including DNS, system backups and security standards to improve reliability.
  • Lead administrator of external DNS infrastructure and domain portfolio.
  • Installed, Configured and maintenance of DNS servers, Mail Servers, FTP servers, NIS, Samba and web server.
  • Support Apache severs, Samba, MySQL database, maintenance Domain controller (Active directory), DNS, DHCP servers.
  • Supported DNS, OpenLDAP and Performed User Account creation, assigning access permission, creating user quota by using Shell scripts.
  • Monitored system performance, tune-up kernel parameter, adding/ removing/ administering hosts, users, disks on DNS / NIS domain.
  • Develop BASH scripts and one liners to automate tasks Troubleshoot and resolve common server, DNS, network and firewall issues.
  • Supervised and managed corporate e-mail, DNS, radius, samba, ftp, and web facilities based on UNIX/Linux servers.
  • Led the effort to migrate DNS records to a 3rd party host which reduced cost and risk for the business.
  • Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
  • General understanding of UNIX file systems, kernel tuning, NFS, DNS Setup and deployment of Apache Web server.
  • Collaborated with Network Admin in Installing, configuring, securing, and implementing slave replication on DNS BIND servers.
  • Resolve and troubleshoot installation problems on Network communication (IP, DNS, FTP, ISDN, etc).
  • Managed, monitor, and provided technical support for Active Directory, DNS, IIS, and Group Policies.
  • Worked on setting up DNS server, enabling and starting the services along with the required clients.
  • Worked closely with the Networks and Security Team in opening firewalls and DNS requests required for infrastructure.
  • Configure network services such as DNS/NFS/NIS/NTP for UNIX/Linux Servers - Set up UNIX/Linux environments for various applications.
  • Migrated collection of domain names from acquired companies into a single registrar account and DNS hosting provider.
  • Deploy Puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
  • Resolve network issues and skilled in network protocols such as TCP/IP, and DNS, DHCP.

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8. Disk

high Demand
Here's how Disk is used in Linux Systems Administrator jobs:
  • Performed regular disk management adding hard drives on existing servers and allocating space to required partitions.
  • Installed and configured Logical Volume Manager, performed hard disk and storage allocation and management.
  • Monitored disk space on machines and conducted capacity analysis when necessary.
  • Performed volume management, which included the encapsulation, initialization, root disk mirroring, export/import of disk, groups etc.
  • Monitor various day-to-day operations such as resolving system errors and crashes, disk space problems, and large file size issues.
  • Created user and security accounts, profiles while granting rights in addition to managing disk space and process monitoring.
  • Configured Logical storage Manager (LSM) for root disk encapsulation and implemented root disk mirroring for fault tolerance.
  • Involved in hardware maintenance, upgrading the memory and interface cards, add and replace the failed disks.
  • Host based Migration, Performed Disk mirroring, backup and restore for better data availability and Disaster Recovery.
  • Initiated the configuration and implementation of hardware RAID storage technology on RAID controllers and disk storage shelves.
  • Worked on various applications and improving their performance by performance tuning, disk space cleanup and analysis.
  • Developed a system that migrated disk based tar archives to tape using an automated tape library.
  • Maintained disk space, performed backups, and ensured archive log processing for the Oracle DB.
  • Monitor storage usage; log files for operational or security problems; and client disk quota.
  • Worked on space issues when logical disk reaches maximum utilization, deleting Core files etc.
  • Verified the disk layout and packages against the supplied build sheet and took necessary actions.
  • Maintain disk space, delete core file and clean old files system every month end.
  • Worked on expanding the disk partitions and creating new partitions using Logical volume manager.
  • Experience in Configuring and Managing Virtual Disks, Disk Mirrors & RAID Levels.
  • Managed disk space on server systems using Software RAID and Logical Volume Manager.

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9. Solaris

high Demand
Here's how Solaris is used in Linux Systems Administrator jobs:
  • Worked on solaris10 container technology, created non global and global zones, modified non global zone parameters.
  • Perform intermediate-level Linux / Solaris System Administrator duties as required, while continuing OpenVMS System Administrator duties concurrently.
  • Configured kernel parameters for oracle database binaries and other utilities hosted in Solaris services.
  • Worked on Solaris Live Update Technology associated with an operating system upgrade or maintenance.
  • Maintain and Deploy Sun Solaris systems to provide optimum functionality for daily operations.
  • Perform server consolidation with migration of systems and applications to Solaris zone environment.
  • Worked on Solaris 10 container technology, configured separate zones for various applications.
  • Monitored Solaris 10 operating system, including log management and process management.
  • Performed data management using native Solaris utilities for archiving and compression.
  • Created/Administrated Zones/Containers in Solaris 10 and implemented security to Zones.
  • Work closely with Southern IT Security on patching Linux/Solaris vulnerabilities.
  • Performed Solaris system patches on Production servers and other environments.
  • Provided system administrative support for Sun Solaris/Red hat servers.
  • Involved in implementing security on Solaris and Linux servers.
  • Created local and global zones using Solaris container technology.
  • Installed configured and administered Solaris containers and creating Zones.
  • Worked with Solaris/Oracle/Dell support to fix hardware/software issues.
  • Experienced in Linux and Solaris operating systems.
  • Configured and maintained Solaris virtual environments.
  • Worked as member of team for campus-wide UNIX (Sun Solaris) to Linux (Red Hat) workstation migration project.

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10. Rhel

high Demand
Here's how Rhel is used in Linux Systems Administrator jobs:
  • Performed installation and configuration of RHEL servers.
  • Experience in the kick-start installations, support, configuration and maintenance of RHEL 5.5, and x86-64 Servers under heterogeneous environments.
  • Assisted with upgrades from RHEL 6.3 and 6.4 to 6.6 and 6.7, while dealing with end-user and application issues.
  • Experience using KickStart and modified KickStart based on server profiles and hardware specifications and performed KickStart/PXE installations of RHEL 5.
  • Migrated more than 100 RHEL Linux physical (HP hardware) to UCS and Physical Linux to VM Linux hosts.
  • Increased RHEL OS performance by OS Slimming, OS Customization, and OS Hardening, Implemented HA Testing, Heartbeat.
  • Installed, set up, managed and monitored different distributions of Linux (RHEL, CentOS, etc.)
  • Upgrade RHEL OS, install packages, patches on multiple systems and manage systems via Red Hat Satellite Server.
  • Perform the administration of RHEL through installation, upgrading, testing, tuning, patching, and troubleshoot.
  • Created disk Partitions and made ext3 default file systems on both physical and virtual machines in RHEL5 environment.
  • Provided system administration for Linux (RHEL 5 and RHEL 6) for both virtual and physical servers.
  • Managed, planned and provided support for complex systems (UNIX/RHEL); database engineering, and administration.
  • SAMBA Server configuration on RHEL 5 with WINDOWS NT and managing SAMBA with SWAT (Graphical Interface).
  • Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL environment.
  • Installed and configured of High Performing Cluster (HPC) on RHEL4 using OSCAR Open source tool.
  • Perform RHEL upgrades, LVM management, system performance tuning/monitoring, system resource management, NFS configuration.
  • Apply patches on RHEL systems and install security packages on servers and follow audit and compliance requirement.
  • Configured and deployed patches, upgrades, bug fixes on both physical and virtual RHEL servers.
  • SWAP box configuration, Implementation of disaster backup and recovery Performance Management & Tuning of RHEL.
  • Build RHEL servers utilizing templates, custom ISO's, PowerCLI scripts for SAP refresh project.

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11. LVM

high Demand
Here's how LVM is used in Linux Systems Administrator jobs:
  • Performed volume management using LVM and managed swap configurations.
  • Created partitions using Linux volume Manager (LVM) to create disk space for Ext.3 and Ext.4.
  • Involved in back up, firewall rules, LVM configuration, monitoring servers and on call support.
  • Performed Volume Management using VERTIAS foundation Suite 5, SVM and LVM and the Creation of ZFS.
  • Configured and managed disk space and LVM on Red Hat and CentOS using tools native tools.
  • Experience in Red Hat Cluster, Logical volume Management (LVM) and RAID in Linux.
  • Used LVM to configure volume group, logical and physical partitions and importing new physical volumes.
  • Implement advance environment configuration such as Hard Disk RAID using Linux Software RAID and LVM.
  • Configured and maintained Software Raids, Logical Volume Manager (LVM) and Hardware Raids.
  • Used Logical Volume Management Commands to create, manage, grow and extend LVM volumes.
  • Worked on configuration and administration of LVM as extending Logical Volume and Physical Volume Size.
  • Configured volumes on Disks and Disk Arrays using various Storage and Unix LVM utilities.
  • Worked in managing local disk devices, creating LVM and Monitoring & System tuning.
  • Experience in User Administration, LVM, Raid levels, Quota management.
  • Managed storage and created disk partitions with Logical Volume Manager - LVM.
  • Set up data volumes using Logical Volume Manager (LVM).
  • Used Linux Logical Volume Manger (LVM) to manage drives.
  • Implemented LVM if customer had need for frequent data space growth.
  • Installed and configured Logical Volume Manager - LVM and RAID.
  • Performed storage management using Logical Volume Manager(LVM).

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12. OS

high Demand
Here's how OS is used in Linux Systems Administrator jobs:
  • Provide technical consultation services and analyze project requirements to develop cost effective, supportable solutions to fulfill business need.
  • Worked closely with network/incident analysts and IC analysts to monitor current attack and threat information to identify.
  • Communicate extensively across different teams by documenting and distributing resolutions, workarounds and information.
  • Deployed Enterprise Applications on Application Servers in a clustered environment and maintained those applications.
  • Tested products for evaluation purposes and documented for necessary changes required as per environment.
  • Developed documentation to satisfy audit requirements, collected and reported OS information.
  • Implement weekly/monthly OS security hardening and mitigate vulnerability risk related incidents.
  • Developed proposals for recommendations for infrastructure enhancements.
  • Update the server repository information.
  • Installed and maintained Git Repository.
  • Coordinated with resources by working closely with Project Manager's for the release and Project Manager for all the Operational Projects.
  • Monitored and troubleshot different performance related issues using performance monitoring utilities like IOSTAT, VMSTAT, TOP, NETSTAT and SAR.
  • Cross platform technical experience in the financial industry including Equity, Options, Futures, OTC, and US Treasuries marketplace.
  • Work closely with government and contracted development teams to assist in the design of customized applications and scripts for daily operations.
  • Installed and configured HP ILO2/ILO3, Dell DRAC 6/7 for server remote console access, firmware upgrades and BIOS upgrades.
  • Updated Process from Open-loop non repeatable builds to close loop repeatable steps ensuring consistent state at time of server delivery.
  • Migrated existing legacy PHP code for operations tools to increase Call Center operations flexibility and reduce costs over time.
  • Install OS updates, patches, virus definition updates, and configuration changes for both Linux and Windows systems.
  • Aided customer in resolving their problem using the tools in the Linux OS or from the command line.
  • Provided RedHat Linux OS support for servers that hosted tool control software for IBM's 300mm semiconductor fab.

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13. Unix

high Demand
Here's how Unix is used in Linux Systems Administrator jobs:
  • Develop long-term Linux/Unix strategies for the enterprise environment to stay current with technology and provide the required functionality to the organization.
  • Attended staff/senior management meetings and advised on operational status and made recommendation for strategic direction of the UNIX platform.
  • Supported daily operations and helped to develop strategies in-order to improve availability and utilization of UNIX environments.
  • Provided Support for Linux/Unix systems administration, operational support and problem resolution for server systems.
  • Experience providing hands-on support for large-scale, public-facing production environments running on UNIX/Linux virtual platforms.
  • Provided ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
  • Project Manager and Technical Unix Lead for Global Oracle Clinical validated system implementation.
  • Installed, monitored and maintained hardware/software related issues on Linux/Unix systems.
  • Analyzed and resolved problems associated with server hardware UNIX, applications software
  • Involved in Documentation of UNIX environment and configuration details.
  • Maintained Ace Hardware Corporations Unix and Linux Development Environments.
  • Maintained and monitored 750+ Unix/Linux Servers with Multi-Datacenter environment.
  • Provide hands information Technology support on Unix Platforms
  • Provided Unix/Linux training for co-workers and customers.
  • Helped to establish standards, policies and procedures for all aspects of Unix server environment like administration, documentation and configuration.
  • Develop, Maintain, update various scripts for services (start, stop, restart, recycle) UNIX based shell.
  • Responded to all UNIX systems problems 24x7 as a part of an on-call rotation and resolving them on a timely basis.
  • Maintain and support over 1100 various Linux and UNIX enterprise servers (physical and virtual) for Honeywell Aerospace client account.
  • Performed real time monitoring, administration and operations of a complex UNIX based distribution system to ensure optimum level of performance.
  • Support of over 100 Critical Unix/Linux Servers which were used for the National Spelling Bee events, and local news platforms.

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14. Vmware

high Demand
Here's how Vmware is used in Linux Systems Administrator jobs:
  • Modified the MONDO backup shell script to upload backup to data store through VMWARE API.
  • Implemented Migration from VMWARE to AWS using VMDK Import tools.
  • Implemented Spacewalk server for patch/update delivery to 300+ servers in a VMWare-hosted environment.
  • Introduced server virtualization with VmWare for increased reliability and better resource utilization.
  • Developed services to improve stability and reduce outages in VMware environment.
  • Configure VMware fault tolerance to ensure availability of virtual machine.
  • Developed VMware Infrastructure for production, test and development environments.
  • Migrated physical servers to VMware environment.
  • Managed about 50 users in the VMware ESX environment with about 4 hosts, and also handled all conversions and upgrades.
  • Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
  • Performed physical to virtual (P2V) and (V2V) migrations for approximately 50 physical servers utilizing VMware Converter.
  • Build servers from ground up with desired applications as requested by other parties on IBM and HP blades or VMWare.
  • Configured and supported a large VMware virtual infrastructure and provided support to product line customers as a Technical Support Engineer.
  • Build, Maintain and back up the vmware images bi-weekly on the Linux (Red Hat) Development server.
  • Experience in developing new security template in VMWare for Red Hat Linux 6.5 to meet existing security standard.
  • Launch of pilot project on transition to thin clients (based on Vmware Horizon);
  • Gained valuable experience of Vmware ESX in daily server maintenance and migration of virtual servers.
  • Perform system changes on Windows Server, Red Hat Linux, and VMware ESX platforms.
  • Worked on cloning physical machine to virtual machine (P2V) using VMware infrastructure client.
  • Perform Field Verification Operation of Windows and Linux Patch in a VMware ESX Server.

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15. Database

average Demand
Here's how Database is used in Linux Systems Administrator jobs:
  • Directed a cross-functional team of developers, system/database administrators, a graphic designer, and an administrative assistant.
  • Integrated capture of user supplied information into company's customer database to create simplified sales force automation system.
  • Enforce Database Security by Managing user privileges and efficient resource management by assigning profiles to users.
  • Managed development and production systems for development, database administration, and quality assurance teams.
  • Scripted database error reprocessing into automated process decreasing overall errors and increasing billable records.
  • Managed system performance like tuning the kernel parameters based on the application/database requirement.
  • Verify successful completion of daily incremental and database backups, following developed procedures.
  • Upgraded server consolidation and migration of application on Oracle Database and Java Applications.
  • Estimate MySQL database capacities; develop methods for monitoring database capacity and usage.
  • Monitored system and conducted database maintenance providing appropriate recommendations, when required.
  • Provided mentoring and systems architecture guidance to fellow systems and database administrators.
  • Collaborated with DBA managing their databases by backup and recovery procedures.
  • Manage environment for oracle database installation and installation of oracle database.
  • Tune Linux kernel using kernel parameters as requested by database administrator.
  • Analyze Oracle database performance statistics and proactively conduct database maintenance.
  • Installed and configured PostgresSQL database on RedHat/Debian Servers.
  • Created logical Volumes for Oracle database installation.
  • Participated in database design and implementation.
  • Worked as network and database administrator.
  • Coordinate restorations of MySQL database servers.

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16. Setup

average Demand
Here's how Setup is used in Linux Systems Administrator jobs:
  • Installed and setup of Logical volume management and RAID hardware/software for high availability and fault tolerance.
  • Specialized with WebSphere Application Server in a setup of clustered environment setups.
  • Provided support for assigned applications, including setup of new users, password resets, and basic troubleshooting of application issues.
  • Used Puppet for performing activities from provisioning to reporting and used Puppet to automate the slave configuration setup and maintenance.
  • Installed and upgraded Operating systems, setup network printers and performed backups and restores using net backup as needed.
  • Participated in facility relocation to new building, including setup and floor plan design for new data center.
  • Constructed multiple test networks that mirrored various office setups and performed QA testing on new implementations and upgrades.
  • Worked on installation, setup and configuring different protocols like FTP, SMTP, and MAIL SERVER etc.
  • Patched applications, restored production data from TSM backups, and setup patched environments for user acceptance tests.
  • Assist with the setup, maintenance, operation, testing and performance of systems for quality assurance.
  • Configure and setup network for newly created virtual servers and add them to the Red Hat Satellite.
  • Experience in Migration of HACMP 4.3.1/4.5/5.1 to HACMP 5.4 using Node-by-Node migration without changing the cluster setup.
  • Install, configure, and setup company's VoIP Phones, Call Routing Servers and VoiceNetwork.
  • Assisted with internal Help Desk functions including application setup, connectivity issues, and product training.
  • Watch and monitor the health of server/desktop systems that setup Ganglia to see clusters' performance.
  • Perform maintenance tasks: add/remove users, backup and restore, firewall setups and system updates.
  • Upgraded HACMP V4.3 nodes by doing a node by node migration without changing the cluster setup.
  • Administer printing services, using CUPS and LPD, install and setup Unix print queues.
  • Install, setup, test, deploy, monitor and maintain virtual and physical servers.
  • Interacted and coordinated arrangements with IBM Hardware CE on new hardware setups in Data Center.

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17. Virtual Machines

average Demand
Here's how Virtual Machines is used in Linux Systems Administrator jobs:
  • Created Virtual Machines in ESXI environment to facilitate development and test operations.
  • Implement virtual machines based on customer requirements.
  • Deployed virtual machines/guest Operating system from templates.
  • Created tools to monitor the health of the virtual machines, and automatically shut them down and restart them if necessary.
  • Worked on over 100 RedHat Enterprise Server 5.x and 6.x virtual machines daily in a variety of Apache/MySQL/PHP configurations.
  • Installed RedHat Linux on bare metal servers and virtual machines using kick start and hardening the servers.
  • Create templates and deploying Virtual Machines through templates, cloning Virtual Machines and managing Virtual Center permissions.
  • Converted a lot of physical server on Dell R820 into virtual machines for a Lab environment.
  • Designed the Infrastructure and administered the environment running over 20ESXHosts and 500 Virtual Machines.
  • Experienced in importing the both physical and virtual machines into Oracle Virtual Machine Manager.
  • Used virtual machines to develop various software and perform experiments and tests.
  • Use KVM in lab environment to manage virtual machines running Linux.
  • Conducted the disk partitioning for all the physical and virtual machines.
  • Install Virtual machines using existing templates in ESX servers.
  • Install Virtual machines, as well as physical machines.
  • Converted physical servers to virtual machines with P2V utility.
  • Support client virtual machines via chat and ticket system.
  • Managed and maintained over 8,000 physical and virtual machines.
  • Created virtual machines deployed OS and managed hardware.
  • Created and monitored virtual machines using OVM.

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18. YUM

average Demand
Here's how YUM is used in Linux Systems Administrator jobs:
  • Implemented a custom run-stage to ensure all yum repository configuration was done before proceeding with any application installation or configuration.
  • Configured and used yum repository for packages and patches installation in Linux environment.
  • Configured yum repository server for installing packages from a centralized server.
  • Centralized system configuration management utilizing YUM.
  • Experience in package management using RPM, YUM in Red Hat LinuxCreated partitions, LVM, Swap partitions and extended partitions.
  • Performed server updates, patching, package installations, using RPM AND YUM and monitored security logs to determine security problems.
  • Maintained systems up to date by installing, updating software on windows environment and package management with RPM/Yum/Apt on Linux systems.
  • Used rpm and yum to maintain systems at a level supported by the OFED stack on InfiniBand HPC clients.
  • Applied appropriate support packages/patches to maintain system integrity and system firmware using YUM, RPM, and software migration.
  • Performed RPM and YUM package installations, Change Management requests for software releases, patches using Puppet.
  • Installed and upgraded packages and patches on RHEL servers using RPM, YUM and third-party software applications.
  • Performed installation, patching and upgrading software and hardware packages including its dependencies using YUM, RPM.
  • Applied patches every quarter regularly to meet audit requirements using internal YUM repositories, and RPM utility.
  • Configure YUM server to install, update, and remove the packages on server and client side.
  • Created yum repositories and configured them on the servers and Installed packages with yum and rpm.
  • Perform system updates and patches using RPM and YUM, setup Yum repositories for wide use.
  • Performed servers updates, patching, upgrade and package installations using RPM, YUM and WGET.
  • Installed RPM packages on RedHat Linux Servers, updated with the help of yum and up2date.
  • Installed, updated, and configured the necessary packages using the RPM and YUM software/package management.
  • Perform patching on running servers using live upgrade, yum update, reducing minimal downtime.

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19. Kickstart

average Demand
Here's how Kickstart is used in Linux Systems Administrator jobs:
  • Installed and configured of Linux servers using JUMPSTART and KICKSTART installation.
  • Installed PXE servers, KickStart configurations for automatic Linux Installation.
  • Install and configure JumpStart&KickStart servers.
  • Configure and use Kickstart to perform -RedHat installation, ensuring that configuration and server hardening are compatible with security.
  • Experience installing and upgrading of Linux using Kickstart servers and interactive installation.
  • Performed automated installation of CentOS operating system using kickstart.
  • Configured Linux Kickstart on multiple servers for network installation.
  • Manage environments using Puppet and creating automated environments Kickstart.
  • Configured Kickstart to streamline all Linux installations.
  • Worked with RedhatSatellite Servers using Kickstart Mechanism.
  • Performed server installation using Kickstart physical servers.
  • Utilized Kickstart for systems builds/recovery.
  • Worked on configuring the Linux machines through Kickstart (Red Hat Linux) program for Host and Network based Installations.
  • Installed and configured 200+ physical Dell, HP Linux Enterprise (Red Hat, CentOS) servers via Kickstart.
  • Install Red Hat Linux using Kickstart and applying security policies hardening the server based on the company policies.
  • Install, configure, maintain and administer Linux System using Kickstart and interactive installation on many servers.
  • Experience installing, upgrading and configuring RedHat Linux 6.x, using Kickstart Servers and Interactive Installation.
  • Implemented rapid-provisioning and life cycle management for Red Hat Linux using Kickstart, Cobbler and Puppet.
  • Installed via kickstart and supported CentOS and Debian Linux Distributions and also Windows Server 2008 locally.
  • Developed PXE and kickstart boot environments to deploy server hosts in a rapidly growing system.

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20. RPM

average Demand
Here's how RPM is used in Linux Systems Administrator jobs:
  • Used performance monitoring tools such as BaseBoard Management Controller (BMC) tools, RPM to enhance system.
  • Compiled and built RPM packages for open source applications to relay client mail and external mail spam detection.
  • Performed Package management such as Installing, removing and updating & querying packages using RPM tool.
  • Installed third-party software packages with Linux tool (RPM) on the Servers and desktops environment.
  • Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
  • Install, Update and erase the required packages to provide services using RPM and UP2DATE.
  • Performed level upgrades, software administration & the RPM installation on Red Hat Linux.
  • Experience in RPM Package Administration for installing, upgrading, and checking dependencies.
  • Installed Upgraded and Managed packages through RPM and also had responsibilities of dependencies.
  • Installed certain RPM packages, which were not installed default for Oracle.
  • Install packages using RPM as per the requirements from the development team.
  • Created and distributed custom software packages using the RPM packing format.
  • Installed and configured Apache ANT for automated build processing using RPM.
  • Upgrade the system with necessary rpm/patches for drivers and software updates.
  • Involved in using RPM for package management and Patching.
  • Create RPM's for Custom build Applications.
  • Installed software with RPM and updating software.
  • Installed various RPMS on Linux.
  • Experience with packaging software for Linux/Unix systems (RPM, DEB, LPP, etc.)
  • Performed automated kickstart installations and RPM package management.

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21. Centos

average Demand
Here's how Centos is used in Linux Systems Administrator jobs:
  • Secured and administrated CentOS LAMP based VPS Web/Programming system hosting approximately 600 users.
  • Maintained daily operations on multiple CentOS Linux-based systems.
  • Installed, configured Linux servers (Red Hat enterprise and centos7) and operating system on x86_64 base architecture.
  • Performed automated installations of Operating System using kick-start and PXE installation for RedHat and CentOS.
  • Worked on installation, configuration and maintenance RedHat, CentOS Servers at multiple Data Centers.
  • Installed, configured, and maintained organization's operating system (RedHat/CentOS).
  • Installed, Configured and maintained Red Hat Linux, CentOS and Windows Servers.
  • Worked primarily via the command line terminal in a CentOS, LAMP environment.
  • Install CentOS (Linux) operating systems on those web server machines.
  • Fix general website, mail, and Linux(CentOS) problems.
  • Managed Linux and Unix distributions including Gentoo, Debian, and CentOS.
  • Develop standards and guidelines for the use of Linux CentOS.
  • Installed, configured and maintained RedHat/CENTOS servers compute farm environments.
  • Operated and maintained one dedicated server running CentOS.
  • Implemented in-house Wiki on a CentOS LAMP stack.
  • Performed cleanup of CentOS and OEL Linux systems.
  • Administered package installation, configuration of CentOS 5/6.
  • Installed, configured and maintained CentOS servers.
  • Design, Deploy and Maintain CentOS servers.
  • Deployed, monitored, and maintained, CentOS and RedHat Linux systems both on bare hardware and VMWare.

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22. SAN

average Demand
Here's how SAN is used in Linux Systems Administrator jobs:
  • Project Manager and Technical Lead for SAN/Backup Re-architecture.
  • Monitored SAN utilization with cacti.
  • Build physical servers according to build sheet which entails loading Linux or Window Server, boot-from-SAN, and perform Health Checks.
  • Configured power path for SAN devices and performed Disk management with the help of LVM (logical volume management).
  • True Copy setup and maintain on Hitachi SAN; Migrate Hitachi and other storage to SVC and maintain SVC.
  • Handle off hours notification and alerts for infrastructure monitoring of both SAN Storage and UNIX and Linux Servers.
  • Configured and maintained, RAID storage, LUN groups and UNIX file systems on IBM SAN storage system.
  • Mounted a large variety of Sun/Oracle servers into racks, made connections for networking, console and SAN.
  • Worked in a team to install, monitor and maintain their Unix Sun Servers and SAN components.
  • Manage NFS, SAN, FTP archive, mirroring all level of RAIDS relevant to company policy.
  • Swap space management on the Linux servers by discovering SAN disks and configuring them as swap disks.
  • Modified SVCMON open source monitoring software to work with recent versions of IBM SAN Volume Controller.
  • Helped design and maintain thousands of computer systems utilizing both Linux and Windows operating systems.
  • Worked with SAN, DB and Network teams to ensure the smooth relocation of servers.
  • Worked on network connectivity, SAN storage, creating LVM and taking TSM backup.
  • Involved in the yearly maintenance patching for both SAN and Non-SAN connected Linux servers.
  • Perform SAN migration on 60+ Database servers from DS8300 to NetApp disks storage.
  • Performed check out for the sanity of the file systems and volume groups.
  • Worked with SAN Team in formatting, partitioning drives utilizing LVM and Device-Mapper.
  • Have experience in migrating storage from other storage architectures on to SAN.

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23. Troubleshoot

average Demand
Here's how Troubleshoot is used in Linux Systems Administrator jobs:
  • General troubleshooting of operating system, hardware, and application problems and diagnostic of internally developed J2EE applications.
  • Provide technical support for internal users to include account management and troubleshoot hardware/software related issues.
  • Analyzed and troubleshoot complex application and operating system issues to prevent or alleviate production outages.
  • Provided support for both physical and virtual environments and Troubleshooting WebLogic Application Server connection pools.
  • Troubleshooted and debugged environmental and infrastructural problems found in the production and non-production environments.
  • Provided systems administration, monitoring, maintenance, deployments, troubleshooting and automation services.
  • Document environments and resolutions to issues for future troubleshooting requirements and problem solving.
  • Provide support for implementation, troubleshooting and updates of applications on Linux/Unix Servers.
  • Diagnosed and troubleshooted LINUX processing problems and applied solutions to increase company efficiency.
  • Performed systems administration support and troubleshooting duties in a 24x7 production environment.
  • Collaborated with Research Staff Members to deploy and troubleshoot custom Research applications.
  • Assist application owner in application troubleshooting, software package installation & creation.
  • Perform basic shell scripting including to perform various troubleshooting and system administration.
  • Experienced with deployments, maintenance and troubleshooting applications on Microsoft Azure.
  • Troubleshooted many issues ranging from network connectivity to process management.
  • Worked on Windows infrastructure for troubleshooting, installation and maintenance.
  • Performed troubleshooting to isolate and diagnose system problems.
  • Monitor and troubleshoot applications with performance related issues.
  • Supported various organizational departments in investigating and troubleshooting.
  • Demonstrate technical knowledge with incident handling and troubleshooting.

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24. SSH

average Demand
Here's how SSH is used in Linux Systems Administrator jobs:
  • Monitored server and application performance and tuned I/O, memory and Installation of SSH and configuring of keys base authentication.
  • Managed local network device configurations, routing, firewalls and remote connections (SSH, terminal or otherwise).
  • Configured and maintained network security features such as firewall, NAT, reverse-NAT, VPN, and SSH.
  • Generated SSH Port Forwarding to establish secure remote connections for various restricted services between Work & Home Sites.
  • Implemented VNC over SSH, documented the process, and assisted CCCS-IT staff with the transition.
  • Create and use SSH Tunnels with Local and Remote Port forwarding to access remote Systems.
  • Handled Local and Remote administering of servers, routers and networks using Telnet and SSH.
  • Administered local and remote servers using SSH (secure shell) tool on daily basis.
  • Configured SSH, SMTP, Build Tools, and Source Control repositories in Jenkins.
  • Installed Software Patch Updates, Monitoring systems via SSH, On Call Telecommuting
  • Automated the backup process to the disaster recovery centers using Ssh keys.
  • Install and configure SSH to enable secure access to the servers.
  • Added multiple nodes to Jenkins and configured SSH for continuous deployments.
  • Secured traffic between Corporate Office & NOC Systems with SSH.
  • Installed and Configured SSH Gate for Remote and Secured Connection.
  • Worked on IMAP, POP, SSH Configuration and Hardening.
  • Solved ssh, telnet and Many other Network connectivity issues.
  • Worked on SSH connections and configurations by using Putty.
  • Configured SSH for secure telnet and FTP connections.
  • Installed SSH and configured keys bases authentication.

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25. Mysql

average Demand
Here's how Mysql is used in Linux Systems Administrator jobs:
  • Worked on MySQL Migration Level, Created MySQL Master Replication Detail Plan, MySQL Slave(s) Replication Detail Plan.
  • Modified and debugged existing custom Python scripts designed to parse AAA logs and import selected data into a MySQL database.
  • Automated the Linux and MySQL user access across hundreds of servers making the process more cost effective and efficient.
  • Developed Unix shell scripts to be used with MySQL to enforce standard process used by the development organization.
  • Experience working on database servers such as RDS, DynamoDB, MySQL, Oracle, PostgreSQL etc.
  • Support and troubleshooting of Linux Apache, MySQL, Have knowledge on MySQL, Oracle Database Administration.
  • Maintain high availability of the company's data by replicating MySQL Database.
  • Maintained Linux Apache MySQL PHP (LAMP) stacks in high-availability configurations.
  • Advanced administration of MySQL 4.x clustered (master / slave) environment.
  • Utilized LVM snapshots to get a clean point-in-time snapshot of MySQL data.
  • Helped create and maintain company websites using PHP, MySQL and Linux.
  • Installed and configured MySQL on Linux Server for test and development environment.
  • Received recognition for skilled use of MySQL with regards to application security.
  • Installed and configured LAMP-Linux, Apache, MySQL and PHP solutions.
  • Experience in migrating Oracle, MYSQL data using Double take products.
  • Maintained Apache, MySQL and proprietary services to ensure server availability.
  • Installed and configured LAMP Linux, Apache, MySQL and PHP.
  • Monitored web access, MySQL threads, games & sessions.
  • Investigated MySQL configuration differences between 32 and 64 bit versions.
  • Maintain several databases of users and user information in MySQL.

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26. Cron Jobs

average Demand
Here's how Cron Jobs is used in Linux Systems Administrator jobs:
  • Analyzed system performance, Reallocated of kernel resources and Performed process automation, scheduling of processes using CRON jobs.
  • Performed all administrative tasks like CRON jobs, installing and updating packages and patching.
  • Performed process automation, scheduling of processes using CRON jobs.
  • Scheduled CRON jobs to automate system task.
  • Monitored and performed troubleshooting backups and scheduled Cron jobs.
  • Developed Cron jobs and Shell Scripts for automating administration tasks like file system management, process management, Server reboots etc.
  • Created and scheduling of Cron Jobs such as backup, system monitoring and removal of unnecessary files.
  • Used cron jobs in managing systems routine backup like performance, upgrades tuning and testing.
  • Manage and maintain Linux Print systems (cups), cron jobs and shell scripts.
  • Conducted full, incremental and differential system wide backups with cron jobs.
  • Developed shell scripts and cron jobs to maintain day to day processes.
  • Performed maintenance of file system; create cron jobs for periodic processes.
  • Migrated the manual jobs to self-executing cron jobs on Physical/Virtual Servers.
  • Manage system routine backup, scheduling jobs and enabling cron jobs.
  • Created BASH shell scripts to automate cron jobs and system maintenance.
  • Used Cron jobs to schedule jobs and automatic system administration duties.
  • Scheduled and automated administration of tasks using Cron jobs.
  • Managed cron jobs, batch processing and job scheduling.
  • Utilized Cron jobs to schedule and run jobs.
  • Set up cron jobs for automated processes.

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27. Bash

average Demand
Here's how Bash is used in Linux Systems Administrator jobs:
  • Developed bash scripting for automated tasks like customizing user environment, performance monitoring and tuning.
  • Involved in writing/modifying scripts using bash for day-to-day administration and automation of tasks.
  • Worked on automated server building and provisioning infrastructure using Ruby and bash
  • Automated routine daily administration tasks using bash scripting.
  • Write bash scripts to automate various tasks include adding Swap, backup, transferring files and user's account management etc.
  • Automated various troubleshooting tasks into a local PHP and bash based internal web application to speed up problem recovery.
  • Created scripts to automate user management, review logs, to monitor disk space using bash and python.
  • Created Bash scripts to automate information gathering and patch verification process across mix of Red Hat/Oracle Linux/CentOS servers.
  • Developed bash scripts and various automation techniques to maximize efficiency and free up time for other projects.
  • Created bash/shell, and some python scripts to help automate system tasks and preemptively locate system issues.
  • Experience in writing basic Shell scripts using bash for applications, backup and scheduling.
  • Use bash shell scripting to schedule and automate processes including full and incremental backups.
  • Created Bash, shell scripts for various Systems Administration tasks to automate repeated processes.
  • Created BASH utility scripts as needed to help automate tasks and determine needed information.
  • Assisted in writing bash scripts used for STIG checklists and automation of repetitive tasks.
  • Develop and run bash scripts to automate tasks on hundreds of servers using HPSA.
  • Perform basic bash shell scripting using CLI for specific command outputs on multiple servers.
  • Created scripts to automate tasks using bash shell scripting, python and PowerShell.
  • Utilized vi to write a variety of bash scripts, and media collection.
  • Experience in Shell scripting (bash) to automate system administration jobs.

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28. NIS

average Demand
Here's how NIS is used in Linux Systems Administrator jobs:
  • Perform day-to-day functional administration tasks, as well as application-specific technical support using remedy ticketing system in a 24/7 environment.
  • Perform routine server administration tasks like user management, performance enhancement, and system monitoring and disk management.
  • Developed a Wiki that allowed administrators to cross-reference enterprise-wide alerts with the procedures needed to correct the issue.
  • Monitored user and group administration, password management, file accessing and advanced file permission privileges.
  • Provided systems administration services to support software developers, testers and project managers' activities.
  • Initiated and maintained specific system maintenance /administration logs providing reach-back reference enhancing overall team performance.
  • Configured Users & Security administration, backup, recovery and maintenance of various activities.
  • Functioned as primary Linux administer and systems engineer to maintain system services and performance.
  • Performed a multifaceted role as Senior Network Administrator and Senior Linux Systems Administrator.
  • Follow and document procedures related to systems administration of backup and recovery environment.
  • Account, user and group administration, Permissions policy management and quota implementation.
  • Assisted other fellow systems administrators and support representatives with technical support and guidance.
  • Perform infrastructure hardening, and security administration and installation for system infrastructure.
  • Provided systems administration for development-based satellite office for a global software company.
  • Administered over 350 hosts located in remote domestic and international collocations.
  • Work directly with customer to administrate policy based object distributed storage.
  • Monitored security issues, administered system mail and Internet access.
  • Performed administrative tasks and monitored job processes using associated commands.
  • Administered WebLogic 9 application servers which included installing SSL certificates.
  • Created/Executed various Planning, configuration, administration and maintenance tasks.

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29. Nagios

average Demand
Here's how Nagios is used in Linux Systems Administrator jobs:
  • Used NAGIOS tool to monitor log files, temperature and hardware errors.
  • Implemented Nagios monitoring for critical production hosts and worked with application developers to facilitate intelligent application aware host checks.
  • Administer puppet updates and changes for virtual Linux systems Implement new and converted Nagios configurations for appropriate monitoring.
  • Provide drill down reporting for application teams to use in monitoring their application resource usage/performance using nagios.
  • Installed and configured Nagios monitoring tool for infrastructure monitoring and reporting.
  • Implemented Nagios to provide HPC cluster monitoring and outage event notifications.
  • Administered Nagios Monitoring tools for servers monitoring and incident alerts.
  • Configure system monitoring using Nagios and respond appropriately to alerts.
  • Monitored servers and responded to alerts from Nagios Monitoring Software.
  • Monitored physical and virtual servers remotely using Nagios monitoring tool.
  • Used Nagios and Ganglia extensively for active monitoring and alerting.
  • Developed Nagios plug-ins to implement site specific monitoring capabilities.
  • Designed and implemented system to generate dynamic Nagios configuration.
  • Experience with Nagios monitoring tool and Remedy Ticketing system
  • Configured and maintained local monitoring servers like Nagios.
  • Monitored servers with Nagios monitoring tool.
  • Re-Designed and redeployed the Nagios implementation.
  • Implemented server monitoring using Nagios.
  • Performed system monitoring using Nagios.
  • Monitor servers proactively with Nagios.

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30. User Accounts

low Demand
Here's how User Accounts is used in Linux Systems Administrator jobs:
  • Managed user accounts, performing subsystem server configuration, network management and software integration.
  • Created user accounts and providing permissions based on job requirements and security clearance.
  • Managed and maintained user accounts and Configured and managed network interfaces.
  • Performed User accounts administration and management.
  • Created and managed user accounts and security
  • Used commands for creating new users, groups, user passwords, changing passwords, managing user accounts and locking users.
  • Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Red hat Linux.
  • Created and maintained user accounts and print queues, installed tools/compilers including GNU required by the environment and maintained their licenses.
  • Created the application user accounts on the servers and also linking the user's profile to the application's profile.
  • Set up user accounts; assign privileges and user rights (password management, user account deletion etc).
  • Created user accounts, managed user privileges, managing disk space and setting up disk quotas for specific accounts.
  • Created, Modified and deleted user accounts using REMEDY AR system tool, supporting various applications on UNIX environment.
  • Create, modify, disable, delete UNIX user accounts and Email accounts as per FGI standard process.
  • Experience in Creating, Maintaining of User Accounts, Profiles, Security, Permissions, Disk Space.
  • Implemented User Accounts and Access Control Lists (ACL) in Red Hat Enterprise Linux Servers.
  • Created and maintained user accounts, password security and complexity, password recovery and password aging.
  • Create and manage user accounts, security, disk space in CentOS and Red Hat.
  • Established and maintained user accounts, assigned file permissions and established password and account policies.
  • Created, changed, and deleted user accounts per request within the Active Directory.
  • Maintain servers with puppet for user accounts, packages and other configuration management services.

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31. AIX

low Demand
Here's how AIX is used in Linux Systems Administrator jobs:
  • Experience in Utilizing monitoring and performance management tools to ensure overall reliability and stability for the Linux and AIX environments.
  • Migrated older AIX/Linux operating Systems to newer versions.
  • Develop performances improvement initiatives for AIX system environment.
  • Develop procedures for AIX security and management.
  • Trained newcomers AIX/EMS installation and configuration.
  • Experienced in monitoring, troubleshooting and debugging performance issues on RHEL 6.2, 6.4, 6.5 and AIX 6.3, 7.1.
  • Experienced in managing LPAR with virtual memory management and memory optimization and using AIX Virtual Memory Manager (VMM).
  • Scheduled maintenance related to AIX/Linux OS installation, Migration, TL /SP Upgrade, and fixes security patches installation.
  • Upgraded the Hardware Management Console (HMC) firmware version to 7.3 and managed AIX servers from HMC.
  • Managed around 1200 Production server environment which includes RHEL 5.x and 6.x, AIX, CentOS, servers.
  • Project Management: * Maintained and implemented a TL upgrade/patching schedule for AIX, VIOS, and HMC.
  • Experience in installation, configuration, Troubleshooting and administration of AIX 5L, 6.1 && 7.1.
  • Configure IBM DS4000 storage, configure arrays and created logical drives and mapped with the AIX hosts.
  • Provided support for Migration from AIX 4.3.3 to AIX 5.1 in a 50 node production environment.
  • Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR's.
  • Work with SEM (Security event management) team to configure SEM agents on AIX/Linux servers.
  • Created, updated, and removed user accounts and privileges in MS Active Directory and AIX.
  • Created mount points for server directories, and mounted these directories on AIX & Linux Servers.
  • Performed 5.3, 6.1, 7.1 AIX OS Installation manually and through Blade Logic Console.
  • Performed installation, periodic maintenance updates and applied APAR fixes on Linux and AIX servers.

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32. Ldap

low Demand
Here's how Ldap is used in Linux Systems Administrator jobs:
  • Converted Linux systems from local password authentication to LDAP and NFS homes significantly increasing administrative efficiency.
  • Performed network authentication of users using LDAP and configured network access to shared directories.
  • Administered LDAP on high availability systems, configured and managed servers.
  • Perform Linux LDAP configuration for connection to Active Directory environments.
  • Configured with connectivity to active directory or inbuilt LDAP.
  • Performed installation and configuration of LDAP.
  • Centralized Authentication by configuring LDAP Server.
  • Installed and configured Web Sphere, Apache, Web Logic, LDAP, Mail servers, Volume Manager and Cluster Servers.
  • Learn how Denver does their tickets, relating to directories and more with LDAP Commands at the command line.
  • Migrated multiple critical services such as LDAP and NIS from legacy systems to newer hardware and software.
  • Experience in system software installation and configuration of NFS shares, Auto-Mounter, DHCP and LDAP.
  • Maintain and support day-to-day data center operations such as Single Sign-On w/LDAP, Active directory.
  • Configured LDAP clients on server test and troubleshoot for maintaining network and data security.
  • Transitioned UNIX NIS account administration function to China team, facilitating NIS to LDAP.
  • Managed user accounts and groups on a large scale in LDAP and NIS environments.
  • Installed and configured LDAP servers to authenticate between Linux, Apple and Windows environments.
  • Installed and configured Apache, BEA WebLogic, LDAP, and mail servers.
  • Established LDAP single point authorization to control access to multiple domain resident services.
  • Developed DB2 and LDAP health checks to verify compliance with corporate security standards.
  • Worked on managing users in LDAP server, as per the requirements.

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33. Kernel

low Demand
Here's how Kernel is used in Linux Systems Administrator jobs:
  • Monitor system performance and change kernel/network parameter according to the application/System needs.
  • Experienced in Install Operating System and configure kernel parameters for Linux/Unix servers.
  • Modify the Kernel Tuning parameters based on the application requirements.
  • Recommended Sun OS kernel/OBP patch upgrade for production/development servers.
  • Configured Kernel Parameters for Oracle database install.
  • Experience in kernel re-configuration & parameter tuning.
  • Tuned kernel parameters for optimal performance.
  • Installed physical hardware including any HBA and modified any kernel parameters to tune the hardware as per the vendor's request.
  • Performed different kind of tuning (memory, disk IO, SQL server, kernel) to meet specific requirements.
  • Configured Network connections, Storage or Volume to allocate Oracle databases, and Kernel as requested by DBA.
  • Added new device driver, rebuilt kernel and used the new kernel to boot the system.
  • Performed system-monitoring tune up kernel parameter, adding/removing hosts, users and disks on DNS/NIS domain.
  • Have done kernel compilation for different architecture like PPC, ARM, MIBS and x86 processors.
  • Up gradation of Operating System Environment/ kernel patches, packages, web server, and applications.
  • Installed Firmware Upgrades, Kernel patches, systems configuration and performance tuning on Unix systems.
  • Performed Kernel Tuning for the better performance of applications like Oracle and disaster recovery solution.
  • Experience working with Database administrators to tuning and preparing the Linux kernel for Oracle installations.
  • Experienced in system ROM and ILO firmware, Option Firmware Update, configure Kernel parameters.
  • Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
  • Versed in (Kernel) package management - installations, updates and upgrades.

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34. Tomcat

low Demand
Here's how Tomcat is used in Linux Systems Administrator jobs:
  • Experience in maintaining/tuning/upgrading Web logic/Web sphere and Web based applications like Java & Tomcat/Apache.
  • Managed Tomcat Java web application environments for the Development team.
  • Installed and configured Apache/Tomcat web server.
  • Install, configure, and troubleshoot enterprise-wide Apache Web Servers and Tomcat application containers in large Red Hat Linux/CentOS environment.
  • Maintained and/or troubleshooted Server applications such as Apache, Tomcat, BIND, MySQL, DHCP.
  • Installed, configured, compiled and supported Apache, Tomcat, PHP, and MySQL servers.
  • Maintained Linux Tomcat servers for proprietary network access software used by numerous global hotel chains.
  • Provided 24x7 supports as Web admin and to build and support Apache and Tomcat Servers.
  • Install, configured, maintained Apache and Tomcat configurations on QA and Production Linux environments.
  • Installed and managed Tomcat and Apache Web based Server for Red Hat Production servers.
  • Experience supporting middle ware servers running Apache, Tomcat and Java applications.
  • Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP web service environment.
  • Supported the applications of Apache & Tomcat web server and Samba servers.
  • Installed and configured global production web environment running Apache and Tomcat.
  • Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
  • Experience using Tomcat 6, Apache 2 web server applications.
  • Configured application servers (Tomcat) to deploy the code.
  • Provided support for Apache web server and Tomcat Application server.
  • Worked on web server like Apache and Tomcat.
  • Install and configure Apache tomcat server for developers.

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35. System Administration

low Demand
Here's how System Administration is used in Linux Systems Administrator jobs:
  • Maintained corporate IT infrastructure of a small advertisement agency, performed daily system administration for mixed Linux and Mac OS environment.
  • Coordinated with business development personnel on proposals and work estimates involving highly complex system administration projects and solutions.
  • Performed general system administration and automation tasks in office and production environments.
  • Performed traditional system administration/engineering skills as a senior Linux system administrator.
  • Managed daily activities to include user support and system administration tasks.
  • Perform system administration duties on Linux and Windows virtual/physical servers.
  • Collaborated with Development and System Administration Teams to resolve issues/escalations.
  • Performed system administration for Linux and Windows Servers.
  • Performed routine operational LINUX system administration duties.
  • Red Hat/CentOS Linux System Administration proficient.
  • Conduct System administration and maintenance.
  • Develop, document, and maintain policies, procedures and plans for system administration and facilitate future training and support activities.
  • Worked six month contract for Lockheed-Martin providing UNIX and Linux system administration services for U.S. Army Corps of Engineers.
  • Explore new technologies and design methodologies that enhance the efficiency of system administration & support for my team.
  • Planned, created curriculum, and gave seminar at user's group conference on system administration tasks.
  • Performed daily system administration activities; checking system logs, troubleshooting, and other system resource usages.
  • Provide UNIX/LINUX System Administration and Support for internal HP Systems and infrastructure on an Enterprise level.
  • Participated in team activities as a member of the Linux / UNIX System Administration.
  • Provided 24x7 System Administration support for Red Hat Linux servers and resolved troubled tickets.
  • Develop & maintain various system administration, monitoring tools for day to day use.

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36. Puppet

low Demand
Here's how Puppet is used in Linux Systems Administrator jobs:
  • Maintained Puppet-based configuration management in operational and production environments.
  • Experience in administration and configuration management of Puppet on Linux and puppet enterprise management from the console.
  • Developed and designed configuration management solutions using configuration automation programs such as Puppet and Jenkins.
  • Implement Linux Configuration management using Puppet (Configuration, Patch management and Compliance).
  • Configured Master servers on Puppets to automatically update the latest versions of applications.
  • Experienced with automation tool to make configuration on different machines using puppet.
  • Experience in developing Puppet modules to automate application installation and configuration management.
  • Utilized Puppet configuration management system through SVN to administer over 200 servers
  • Experience building of puppet manifests and understanding of Puppet Enterprise infrastructure.
  • Installed and implemented Puppet for Linux system deployment and management.
  • Involved in Configuring Automation & Centralized Management with Puppet.
  • Implemented configuration and package management via Puppet.
  • Worked on installation and configuration of Puppet.
  • Utilize puppet for automated configuration and deployment.
  • Installed and maintain Puppet-based configuration management system.
  • Assisted in creation/modification of custom Puppet modules.
  • Design and Implementation of Puppet Master/Client Infrastructure.
  • Configured Puppet to provide centralized management.
  • Managed configurations and automation using Puppet.
  • Used Puppet for creating scripts, deployment for servers, and managing changes through Puppet master server on its clients.

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37. Perl

low Demand
Here's how Perl is used in Linux Systems Administrator jobs:
  • Developed evaluation criteria for the selection of properly skilled university level Computer Science, Graphic Design, and Marketing candidates.
  • Organized patching and software upgrades with internal customers to make sure development tools and general server environment worked properly.
  • Developed automated scripts/system monitoring tools/testing tools using UNIX shell and Perl Scripting.
  • Developed numerous scripts and utilities in Perl and Bash to assist in billing, system administration, and system security.
  • Provided programming/scripting troubleshooting for PHP, CSS, SQL, HTML, XML, Perl, Ruby and several others.
  • Shell and Perl scripting for automation of routine tasks, python for testing and version control using GIT repository.
  • Experience in using Perl, shell and python scripting for creating users, changing permissions and monitoring server security.
  • Migrated the Wiki application server from RHEL4.x to RHEL6.x server and performed tests to ensure application operating properly.
  • Ensured that the environment continuously operates properly and ensure that any problems that arise are quickly resolved.
  • Required extensive scripting in Python, PHP, Perl, and PowerShell for automation and system tasks.
  • Coordinated with Security team for required authentication setup and made sure things were working properly.
  • Shell and Perl automation scripting, and using automation tools like HPSA and Chef.
  • Performed troubleshooting of in-house web applications using a combination of Perl and PHP.
  • Implemented Perl and shell scripts for automation of the Build and Release process.
  • Developed Perl scripts to assist in maintaining Linux server production and testing environments.
  • Experience in Developing PERL, Python shell scripts to automate system maintenance.
  • Created Unix /Linux shell, Perl scripts to automate system administration procedures.
  • Automated various procedures for scheduled product launches using shell scripting and Perl.
  • Engineer and implement Perl scripts to automate processes, procedures and tasks.
  • Use PERL and bash scripts to automate functions of the systems.

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38. Suse

low Demand
Here's how Suse is used in Linux Systems Administrator jobs:
  • Configured, implemented and administrated of Clustered servers on SUSE Linux environment.
  • Administered and supported all distributions of Linux, including Linux Enterprise Desktop, SUSE Linux Enterprise Server, and RedHat.
  • Assisted in integration and maintenance of GE platform infrastructure, on Private Cloud using OpenSUSE and KVM VMM.
  • Support of network team for routing parameters of RedHat and SUSE systems including TSM.
  • Used and tested SUSE Manager for successful upgrades and patching of SLES servers.
  • Conduct systems administration and programming of SUSE Linux for a small accounting firm.
  • Create puppet manifests and modules to manage a SuSE 11.1 environment.
  • Installed and configured SuSE/Red Hat Linux on many servers.
  • Implemented SUSE Manager for patching and auto installations.
  • Converted systems from OpenSuSE to CentOS.
  • Managed server nodes running SuSE Linux.
  • Install and configure SUSE Linux.
  • Maintain over 500+ Linux servers (RedHat, SuSE), OEL, Sun and HP server throughout three data centers.
  • Upgraded SuSE 10x to SuSE 11x.
  • Attended meeting hosted by SUSE Linux on upgrading our SUSE Linux servers to ver 11.0, service pack 3 enterprise editions.
  • Worked on with the computing by both physical and virtual from the desktop to the data center using the SUSE Linux.
  • Open Source Advocate) -Lead a customer enterprise-wide migration from Microsoft Windows to SUSE Linux Enterprise Server (SLES).
  • Support and administer Red Hat Enterprise Linux (4.x/5.x/6.1) and Suse Enterprise Linux (10/11).
  • Involved in Installing and configuring Centos & SUSE 11 & 12 servers on HP x86 servers.
  • Provide service of TSM on SUSE on client side support for Honda and Chubb Insurance.

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39. CPU

low Demand
Here's how CPU is used in Linux Systems Administrator jobs:
  • Performed troubleshooting of various bottlenecks including those found in the CPU, Disk and memory using system and network monitoring tools.
  • Performed WebSphere Environment management through a routine check of Disk Space, CPU utilization and Performance monitoring by using Shell Scripts.
  • Performed memory, CPU and swap area upgrades as required by the applications as part of performance tuning.
  • Configured CPU, memory, and disk partitions as required and to coordinate computer network access and use.
  • Used various commands to check the Performance of the system, load balances on the CPU and memory.
  • Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
  • Project support of HMC operations to redistribute CPU and memory resources from development to Production servers dynamical.
  • Performed troubleshooting of CPU bottle necks, memory bottlenecks and gave suggestions on performance improvements.
  • Assigned CPU, memory resources to the zones as needed by the applications and databases.
  • Monitor all UNIX Servers for CPU utilization, network traffic, and hard drive space.
  • Monitor System Performance and alert logs, Disk and CPU utilization in servers.
  • Monitored system activities like CPU, memory, disk and swap space utilization.
  • Trouble shoot and Configuration of Hardware, CPU Utilization and disk space utilization.
  • Monitored and tracked CPU, network, memory, disk utilization and performance.
  • Maintain and monitor resource usage of disk space, ram/memory and CPU cycles.
  • Experienced in solving Memory, disk CPU and network related utilization problems.
  • Monitored CPU loads, restarted processes, and checked file systems.
  • Generated reports to show the trends of resource utilization user/CPU/network load.
  • Monitor, troubleshoot and resolve CPU, disk and memory issues.
  • Monitored system performance of virtual memory, disk and CPU utilization.

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40. EMC

low Demand
Here's how EMC is used in Linux Systems Administrator jobs:
  • Obtained EMC Information Storage Management certification.
  • Worked with hardware vendors (EMC, Cisco UCS, VCE) to ensure timely resolution of client hardware failures.
  • Experience running EMC GRABS, Heat and Sun Explorer reports and working with EMC and SUN/Oracle support teams.
  • Managed UNIX Infrastructure and EMC storage involving maintenance of the servers and troubleshooting Problems in the environment.
  • Installed and configured Storage network arrays using (SAN) EMC-Clarion Disks with the help of EMC.
  • Worked in production & application support 24/7 in NAS, EMC SAN Storage on Linux Environment.
  • Supported technical team members in allocation of storage services to Windows server utilizing EMC storage tools.
  • Configured EMC VNX series storage arrays for hosting Oracle 10g and 11g database server environments.
  • Created Users and NFS sharing & Samba sharing, EMC Agents Deployment on the Servers.
  • Worked with McData San Navigator to zone EMC, Hitachi and IBM DS8300 Storage Arrays.
  • Worked with the Storage Group to configure EMC SAN storage for various servers with VxVM.
  • Worked with Storage Area Networks (SAN) which consisted of Hitachi and EMC storage.
  • Experience working with servers connected to on SAN and NAS environments like EMC and NetApp.
  • Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
  • Experienced with SAN and storage administration, with EMC Clarion & DMX storage administration.
  • Lead storage migration project migrating NetAPP/IBM DS4800 to EMC VMAX and VNX.
  • Configured attached storage - both internal SCSI RAID and EMC SAN devices.
  • Worked on SAN and storage technologies including EMC Arrays and IBM Arrays.
  • Maintain & troubleshoot Storage Disks from HITACHI, and EMC Disk arrays.
  • Experience in backup reporting and managing of EMC Legato Network Environments.

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41. System Performance

low Demand
Here's how System Performance is used in Linux Systems Administrator jobs:
  • Performed Daily Monitoring of System performance, capacity & managed Inventory; adjust System configurations to accommodate required loads and functionality.
  • Monitor and provide daily reports on system performance to pinpoint performance bottlenecks and select various system options and parameters
  • Improved system performance and functionality by 35% through strict configuration and monitoring practices
  • Plan, execute packages and update installations necessary for optimal system performance.
  • Monitored system performance and respond to alerts for a highly available infrastructure.
  • Implement security strategy and monitor the system performance.
  • Conducted system performance tuning and capacity planning.
  • Investigate new technologies, software, patches, and security packages, which will improve system performance and systems administration procedures.
  • Insure impact of software releases to system performance and resource utilization of distributed and mainframe platforms are acceptable during load testing.
  • Monitored system security, network traffic, network connections, and adjust system parameters to increase system performance.
  • Respond and resolve issues such as system errors, poor system performance, hardware failure, system down.
  • Experience in Configuration, Backup, Monitoring system performance, System and Network Security of Linux services.
  • Monitor system performance on a daily basis to ensure adequate response times on production systems.
  • Optimize system performance by tracking daily system utilization, to determine if problems are imminent.
  • Created scripts to collect data, monitor system performance and auto-start various third party applications.
  • Monitored and provided daily reports to management on system performance as well as security issues.
  • Assisted in identifying, documenting and resolving problems that may degrade system performance.
  • Analyze system performance, client to server traffic and server to server traffic.
  • Maintained system performance, security, disk space standards through resource management.
  • Monitor and troubleshoot system performance, server and user related problems.

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42. Active Directory

low Demand
Here's how Active Directory is used in Linux Systems Administrator jobs:
  • Supported 40 user environment, Windows 2000/2003 server/Active Directory/Exchange and predominately all Macintosh servers.
  • Account management duties using Active Directory and Computer Associates Provisioning Manger.
  • Administer and maintain Active Directory infrastructure, including user account maintenance.
  • Coordinated Active Directory details and planning during a large Merger/Acquisition.
  • Maintained RedHat Directory Server including synchronization with Active Directory.
  • Served as Domain Active Directory Lab OU owner/administrator.
  • Integrated Samba Servers into Active Directory.
  • Configured Microsoft Active Directory domains.
  • Participate with Window's team in the installation of Window Server 2008, and installed Active Directory and create users accounts.
  • Played an active role in the creation and implementation of Active Directory structure by administering and managing the Active directory.
  • Administer Samba to authenticate to Active Directory so all users have access to their home directories on Windows Clients.
  • Provide Hardware, Software and Active Directory support for a network of 600+ users and 800+ workstations and servers.
  • Integrated the Linux environment with Active Directory providing a Single Sign On (SSO) solution.
  • Administer SAMBA and Active Directory domains, hybrid domains using SAMBA and Active Directory.
  • Installed, configured, and maintained Samba 4 as an Active Directory Domain Controller.
  • Manage Windows Active Directory 2003 and 2008 - primarily user and group management.
  • Provide design, implementation, administration and support of Windows Active Directory domain.
  • Implemented Active Directory for user and computer management and created group policies.
  • Experience in Windows Active Directory, Directory Service (Domain Controller).
  • Create and modify users in Active Directory and manage Group Policy settings.

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43. Http

low Demand
Here's how Http is used in Linux Systems Administrator jobs:
  • Worked and Implemented Secure Security Layer (SSL), and HTTPS on the database and web server.
  • Installed and configured Apache Web server, setup HTTP based Installation server for Kick start.
  • Experience in implementing and configuring network services such as HTTP, DHCP, and TFTP.
  • Install and configuration of Web hosting administration HTTP, FTP, SSH, & RSH.
  • Installed, configured, maintained and tuned Apache 1.x/2.x (HTTP) servers.
  • Configured and administered security layers like SSL, SSH, HTTPS, SFTP.
  • Worked with various protocols such as TCP/IP and HTTP.
  • Administered Sun Storage Arrays and Controllers (Setup LUNS, NFS, HTTP, SSH, SNMP protocols).
  • Worked on networking protocols TCP/IP, SCP, SFTP, HTTP, NFS, GPFDIST, GPHDFS, etc.
  • Monitored VoIP auto-provisioning server running Apache httpd.
  • Project: Migration of Apache http reverse proxy services and SUSE Linux Enterprise 9 to SUSE Linux Enterprise 10 upgrades.
  • Installed and configured Apache httpd server to be used by developer to host web applications as at when due.
  • Involved in Installation/Configuration of multiple instances of IBM HTTP Server and configured F5 load Balancers on Linux.
  • Configured secure http, for SVN source control, and back-end communication with Progress Database.
  • Designed replacement game patching infrastructure, replacing 20 Windows/Apache servers with 9 Linux/Lighttpd servers.
  • Configure and administer Apache and Application layers Configure HTTP caching properties for static caching.
  • Monitored system operation efficiencies and services such as HTTP, FTP, MySQL etc.
  • Performed automated installations of Operating System using Kickstart via FTP, HTTP servers.
  • Enhanced Network Security for telnet, ftp, http access.
  • Managed Apache httpd for approximately 300 partner websites.

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44. Logical Volumes

low Demand
Here's how Logical Volumes is used in Linux Systems Administrator jobs:
  • Experience installing configuring local storage using partitions and Logical Volumes Manager -LVM.
  • Created new logical volumes and extended existing logical volume.
  • Implemented Logical Volume management (LVM) for disk management and allocation of space to physical volumes, Creating Logical volumes.
  • Implement disk volume management using Logical Volume Manager (LVM) involving adding and reducing logical volumes space as required.
  • Use of LVM, creating Volume Groups, Logical volumes, and disk mirroring on Linux.
  • Configured and managed file/user/group permissions, physical volumes, volume groups, and logical volumes.
  • Managed storage related issues such as logical volumes on both physical and remote servers.
  • Configured logical volumes using logical volume manager (LVM) and also configured mirroring.
  • Create Logical volumes and design the environment to the job's directions.
  • Managed Physical and Logical volumes, Volume Groups in Linux.
  • Created, extended, reduced and migrated logical volumes.
  • Managed physical and Logical volumes, Volume Groups etc.
  • Create physical volumes, volume groups and logical volumes.
  • Created logical volumes for various applications and Oracle.
  • Created Logical volumes for clients using LVM.
  • Created and managed Logical volumes.
  • Resize existing logical volumes for additional space requirements.
  • Experience on Linux Logical volumes management and creation, extend and mounting of Logical volumes on Linux based servers.
  • Combined devices to form flexible storages of different logical volumes using the Logical Volume Manager, LVM.
  • Manage Linux filesystems, logical volumes, system logs and journal.

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45. Ubuntu

low Demand
Here's how Ubuntu is used in Linux Systems Administrator jobs:
  • Supervised Junior System Administrator installing FOG server on Ubuntu for imaging/cloning and PXE booting computer systems.
  • Automated installation of Ubuntu Linux on client workstations.
  • Analyze, troubleshooting, and resolve RedHat Linux, Ubuntu and Server HW, Network problems in a Production Server environment.
  • Design, install, administer, and troubleshoot core architecture technologies including Windows and Ubuntu servers.
  • Image and configure new systems for use in the infrastructure, mostly CentOS and Ubuntu.
  • Manage Ubuntu, RedHat, and CentOS Linux servers in production and non-production environments.
  • Experience in configuring NFS, Tomcat, Ubuntu, Apache and SAMBA file server.
  • Deployed and configured Apache web server, and FTP servers on to Ubuntu machines.
  • Worked with RedHat, CentOS, Ubuntu, Debian and SmartOS systems.
  • Managed Ubuntu 10.04 Linux based PXE Server for mass production.
  • Supported call center and warehouse Linux workstations (Ubuntu).
  • Migrated Windows Server 2003 to Ubuntu Server 12.04 LTS.
  • Migrated Windows XP desktops to Ubuntu 12.04 LTS.
  • Created resource light Ubuntu desktop image.
  • Deploy and manage complete Linux (Ubuntu and CentOS) virtual server clusters for QA, Staging, and Production groups.
  • Rebuild of the both Linux (Redhat/SUSE/Ubuntu) OS when the server is crashed, using the established profile settings.
  • Performed an installation and configuration for new monitoring server (on Ubuntu 7.10) as a virtual machine using VMware.
  • Job Details: Operation Systems Supported Oracle Linux, Ubuntu Troubleshoot, Manage, Build Linux systems in VMware.
  • Build Multiple Servers for Big Data applications using on Ubuntu, provision of Servers using Docker, Vargrant.
  • Installed and administration of windows and Linux (Centos, Ubuntu and Red hat) servers.

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46. Tcp/Ip

low Demand
Here's how Tcp/Ip is used in Linux Systems Administrator jobs:
  • Performed network monitoring and administration such as configuring TCP/IP for servers.
  • Use of intermediate to advanced knowledge of TCP/IP and SNMP Use of intermediate to advanced knowledge of Exchange and SMTP.
  • Worked with Network team understanding about the TCP/IP protocols, SMPP, routers and sending requests to open the ports.
  • Performed Unix installation, patching and configuration, Unix and TCP/IP administration, system and network debugging, performance analysis/tuning.
  • Created and assigned file attributes & permissions, defined network protocols and insuring TCP/IP and router connectivity.
  • Developed and maintained processes and systems for software management and distribution on TCP/IP - connected distributed systems.
  • Configure network to DHCP or static, familiar with TCP/IP protocol and maintaining network.
  • Worked on TCP/IP tuning parameters for Legato Backup and setting up in RC script.
  • Configured and administrate TCP/IP networking, routing, switching load balancing and VLAN.
  • General technical skills, includes TCP/IP knowledge, networking and security product experience.
  • Performed monitoring of the TCP/IP traffic in the network environment.
  • Worked on TCP/IP Networking troubleshooting and Linux Network Administration.
  • Worked with all networking protocols TCP/IP, LAN, WAN, switches, routers.
  • Network Technology - TCP/IP, VPN / ISDN.
  • Resolved many application Start-up problems, PATH problems, and name conflicts, TCP/IP, LAN/WAN and Networking Problems.
  • Implemented TCP/IP organize in view of DHCP, DNS on Linux 5.2 and Sun Solaris 8.
  • Worked on configuring TCP/IP, network interface, assigning static routes and hostnames.
  • Perform TCP/IP and Network configuration and security (iptables) on servers.
  • Configured with TCP/IP network Configured virtualized infrastructure for RHEV/KVM.
  • Mail server using keriomail for SMTP and POP3/IMAP over TCP/IP and with support for remote administration via the keriomail admin interface.

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47. NAS

low Demand
Here's how NAS is used in Linux Systems Administrator jobs:
  • Worked with and Network Attached Storage (NAS) Team as well to allocate it different servers.
  • Involved in setup Storage Area Network (SAN) and NAS and file system backup and restore.
  • Support SAN and NAS storage by swapping out failed HDD and contacting vendors for part replacements.
  • Installed and maintained HP NFS Clustered gateway NAS services supporting the HP Networking engineering community.
  • Assisted in storage design and planning; this environment utilized SAN, NAS.
  • Traveled to ARTCC and TRACONS for NAS Operational Support, Installations and Configuration.
  • Assisted the Backup Team in configuring NDMP based backup for NAS volumes.
  • Installed and implemented NAS with RAID 1 and RAID 5 configurations.
  • Installed FreeNAS server to mitigate risk of single-disk servers in environment.
  • Configured NAS Snapshot server for heterogeneous Operating system for file transfers.
  • Configured NAS, SAN, and any configurations utilizing device- mapper.
  • Experienced in external centralized storage methods; NAS & SAN.
  • Worked with NAS Storage with HBA card configuration.
  • Implemented SAN/NAS additions on SUN servers.
  • Performed storage management with SAN/NAS.
  • Worked in NFS/NAS, Storage Area Networks (SAN), SSA disk storage environment.
  • Configured NAS Aggregates (RAID4, RAID-DP), Volumes and file systems.
  • Migrated from 600G File Server (NAS) to 2TB Linux NFS.
  • Performed capacity administration with SAN/NAS and relocated the manual employments to self-executing cron occupations on Physical/Virtual Servers.
  • Utilized open source software to save over [ ] in hardware and license fees for SAN/NAS and workstation use.

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48. Jboss

low Demand
Here's how Jboss is used in Linux Systems Administrator jobs:
  • Installed, integrated and tuned LDAP, Apache Tomcat, JBOSS, WebSphere and Web logic application server.
  • Worked with QA team to in Load and Integration testing of J2EE applications in JBOSS application servers.
  • Defined configuration standards for NTP, Apache, LDAP, JBoss-log4j, AutoFS, and other services.
  • Managed and Configured JBOSS 4.x/5 and exposure to distributed queuing architectures.
  • Installed and Configured JBOSS 3.0 on Java Applications.
  • Installed and configured JMX-based services on JBOSS.
  • Worked in administration of JBOSS server environment.
  • Experienced with HP-UX, Tomcat, Apache, Apache Cassandra, JVM, JBOSS, F5 and MySQL.
  • Configured JNDI and JMS on JBOSS.
  • Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
  • Provide support for developers and development efforts related to Linux and Apache Tomcat/JBoss administration.
  • Performed software upgrades to customer instances running JBoss and Tomcat using aforementioned deployment process.
  • Experience in supporting Web services like Apache, Tomcat on Linux and supported middle ware environments like Web logic and JBoss.
  • Installed and integrated different kinds of applications such as LAMP/LEMP stack, Apache Tomcat, JBoss, among several others.
  • Experienced in deployment of applications on Apache Web server, Nix and Application Servers such as Tomcat, JBoss.
  • Deployed several instances of Tomcat and JBoss based servers for customer facing and internal based Web applications.
  • Experience in tuning/maintaining/upgrading Web sphere/Web logic/ JBoss and Web based applications such as Java & Tomcat/Apache.
  • Worked on applications like smart log and load cast application, A-MQ and fuse Jboss application.
  • Managed, implemented and Tested multiple application server Clusters like WebSphere, Weblogic and JBOSS.
  • Installed, configured and maintained Web and Application Servers including Apache, tomcat and jboss.

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49. Sudo

low Demand
Here's how Sudo is used in Linux Systems Administrator jobs:
  • Configure and assign role base access (RBAC) and SUDO to users.
  • Installed, configured and monitored sever hardening tools such as SUDO.
  • Defined SUDO rules for different users based on their requirement.
  • Created and modified users and groups with SUDO permission.
  • Implemented SUDO, SSH and other security tools.
  • Created SUDO Policies for the different applications.
  • Managed User and Application Account creations, deletions, and setting up sudo access for DBA and application account access.
  • Created and deleted users, groups and set up restrictive permissions, configuration of the sudo files etc.
  • Created users with root's privileges and also users with limited root's privileges called sudo users.
  • Implemented SUDO, Secure Shell (SSH) and other security tools like Kerberos for security compliance.
  • Involved in implementation of sudo template to each and every service line in couple of accounts.
  • Experience in SELinux, SUDO and configuration of system resources in term of ACL.
  • Performed daily User account management, creation, deletion, sudo access and etc.
  • Implemented sudo utility throughout the environment for ESB servers and documented the process.
  • Worked on implementing Sudo on servers and providing root access for application users.
  • Granted sudo (elevated) privileges to users as required by the company.
  • Performed user management / authorization management using tools like RBAC and sudo.
  • Implemented SUDO, SSH and password less sftp connectivity for application teams.
  • Converted sudoers file from standard SUDO access by setting up specified commands.
  • Installed and configured Sudo for users to access the root privileges.

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50. Production Servers

low Demand
Here's how Production Servers is used in Linux Systems Administrator jobs:
  • Documented testing procedures and steps involved in data migration on production servers.
  • Provide bi-weekly weekend support for development and production servers.
  • Respond to alarms/alerts on production and non-production servers.
  • Maintained production servers ensuring productivity at all times.
  • Administer production servers in high traffic environment.
  • Monitored production servers using monitoring tools.
  • Install and configure OS installation and apply hardening, patches and upgrades on a regular basis to standalone and production servers.
  • Managed critical bundles and patches on the production servers after successfully navigating through the testing phase in the test environments.
  • Created new groups and tested first in development, QA boxes and then implemented the same in production servers.
  • Documented strongly the steps involved for data migration on production servers and also testing procedures before the migration.
  • Created Domains, Servers, and Clusters by using Web Logic Administration Console on various Production Servers.
  • Create change order request to Harden production servers and resolve it once Hardening is completed.
  • Compiled in-house distribution of Linux which is currently running on production servers within the company.
  • Operated production servers to patch and maintain security at a high visibility data center.
  • Installed and configured DHCP server in Linux to give IP leases to production servers.
  • Resolved and completed various maintenance tasks on UAT/Production servers and Apache software issues.
  • Installed and configured DCHP server to give IP leases to production servers.
  • Administered 20 production servers, 50+ stage, test and development servers.
  • Experience in building Production Servers and validation for new build releases.
  • Worked in security hardening major Production Servers with DISA STIG requirements.

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20 Most Common Skill for a Linux Systems Administrator

Linux18.3%
Veritas7.2%
Web Servers6.2%
File System6.1%
Red Hat5.7%
NFS5.3%
DNS5.2%
Disk4.5%

Typical Skill-Sets Required For A Linux Systems Administrator

RankSkillPercentage of ResumesPercentage
1
1
Linux
Linux
11.7%
11.7%
2
2
Veritas
Veritas
4.6%
4.6%
3
3
Web Servers
Web Servers
4%
4%
4
4
File System
File System
3.9%
3.9%
5
5
Red Hat
Red Hat
3.6%
3.6%
6
6
NFS
NFS
3.4%
3.4%
7
7
DNS
DNS
3.3%
3.3%
8
8
Disk
Disk
2.9%
2.9%
9
9
Solaris
Solaris
2.9%
2.9%
10
10
Rhel
Rhel
2.6%
2.6%
11
11
LVM
LVM
2.4%
2.4%
12
12
OS
OS
2.3%
2.3%
13
13
Unix
Unix
2.3%
2.3%
14
14
Vmware
Vmware
2.3%
2.3%
15
15
Database
Database
2.2%
2.2%
16
16
Setup
Setup
2.2%
2.2%
17
17
Virtual Machines
Virtual Machines
2%
2%
18
18
YUM
YUM
1.8%
1.8%
19
19
Kickstart
Kickstart
1.8%
1.8%
20
20
RPM
RPM
1.8%
1.8%
21
21
Centos
Centos
1.8%
1.8%
22
22
SAN
SAN
1.8%
1.8%
23
23
Troubleshoot
Troubleshoot
1.7%
1.7%
24
24
SSH
SSH
1.7%
1.7%
25
25
Mysql
Mysql
1.6%
1.6%
26
26
Cron Jobs
Cron Jobs
1.6%
1.6%
27
27
Bash
Bash
1.6%
1.6%
28
28
NIS
NIS
1.6%
1.6%
29
29
Nagios
Nagios
1.6%
1.6%
30
30
User Accounts
User Accounts
1.4%
1.4%
31
31
AIX
AIX
1.4%
1.4%
32
32
Ldap
Ldap
1.4%
1.4%
33
33
Kernel
Kernel
1.3%
1.3%
34
34
Tomcat
Tomcat
1.3%
1.3%
35
35
System Administration
System Administration
1.3%
1.3%
36
36
Puppet
Puppet
1.2%
1.2%
37
37
Perl
Perl
1.2%
1.2%
38
38
Suse
Suse
1%
1%
39
39
CPU
CPU
1%
1%
40
40
EMC
EMC
0.9%
0.9%
41
41
System Performance
System Performance
0.9%
0.9%
42
42
Active Directory
Active Directory
0.9%
0.9%
43
43
Http
Http
0.8%
0.8%
44
44
Logical Volumes
Logical Volumes
0.8%
0.8%
45
45
Ubuntu
Ubuntu
0.7%
0.7%
46
46
Tcp/Ip
Tcp/Ip
0.7%
0.7%
47
47
NAS
NAS
0.7%
0.7%
48
48
Jboss
Jboss
0.7%
0.7%
49
49
Sudo
Sudo
0.7%
0.7%
50
50
Production Servers
Production Servers
0.7%
0.7%

31,794 Linux Systems Administrator Jobs

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