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Linux System Administrator Resume Samples
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0-5 years of experience
Responsible for up to 1500 servers and over 10,000 users in a global technology environment. LINUX OS supported web services, email, and a significant CRM application for this client.
- Led technical site relocation project involving up to 40 servers successfully completing project in a single weekend.
- Diagnosed and resolved complex load balancing issue by phone for global site amazing and satisfying client.
- Converted Linux systems from local password authentication to LDAP and NFS homes significantly increasing administrative efficiency.
- Coordinated resources with varied programming expertise to create a holistic solution to system update and service interruption issues.
- Educated users on business interruption risk and received their buy in for system standardization and update.
- Created a process for system updates to minimize risk of application failures.
0-5 years of experience
Designed and deployed a scalable LINUX/Windows infrastructure that seamlessly integrated a network storage server, LDAP servers and SAMBA servers. Reduced infrastructure complexity by 60% and improved development productivity by 50%.
- Managed the build environment and the IBM Clearcase source code control system. Implemented automated solutions with PERL and CMD scripts to prevent and identify build issues.
- Created Solaris Jumpstart and Linux Kickstart servers and processes to automate and standardize the installation process, reducing installation time by 35% and post-installation errors by 50%.
- Developed and maintained the Inventory and Service History System using Microsoft Access and ASP for real-time asset management. Reduced the asset administration effort by 65%.
- Researched, evaluated and implemented new technology solutions, such as the migration from IBM Clearcase to Subversion. Reduced maintenance cost while achieving equal level of service.
- Documented and implemented a disaster recovery plan that included backup schedule policies, regular testing, and off-site recovery plans to ensure data integrity and assurance.
0-5 years of experience
Provided support in the implementation and installation of hardware and software components
- Completed over 20 tickets that involved troubleshooting equipment hardware issues
- Assisted in maintaining systems in lab environments at various sites
- Provided support on weekends and odd hours to ensure little to no disruption of local and operational systems during scheduled maintenance and outages
- Managed daily activities to include user support and system administration tasks
- Provided Tier 1 (Help Desk) problem identification and Tier 3 (Watch Desk) support during normal to semi-critical situations
0-5 years of experience
Installed and configured Fedora, Red Hat, Centos on variety of different server platforms that contained Apache, MySQL, PHP5
- Implemented Kickstart/PXE Boot Servers that Rsync between multiple locations.
- Restructured infrastructure for fail over and disaster prevention.
- Managed and Cross Trained Technical Support Team, teaching personnel Linux standards.
- Created new product build environment, that dropped build time from 2.5 hours to 17 minutes.
- Installed and configured LDAP servers to authenticate between Linux, Apple and Windows environments.
- Configured and maintained RSA Servers and Juniper Network Routers
6-10 years of experience
Install, configure, and upgrade the following operating systems and applications, Windows 7, Windows Vista, Windows XP, Windows NT, Windows 98, DOS, Outlook, MS Office 2010, MS Office 2007, MS Office 2003, Windows Server 2008, Windows Server 2003 and Active Directory.
- Jumpstart, configured, updated Solaris servers with Solaris 8, 9, and 10.
- Installed, configured, and updated Linux machines, with Red Hat, Debian, and CentOS.
- Troubleshoot, analyze and resolve computer problems related to both hardware and software.
- Deploy new equipment and install applications, which enable the customer to perform their job function on updated equipment which leads to higher work output.
- Researched and consulted with customer on new hardware purchases to insure that the proper equipment was purchased which provided high productivity within their budget.
6-10 years of experience
Contracted to design desktop and server systems for companies transitioning from Windows to Unix.
- Developed holistic solutions by analyzing client needs and employing critical thinking in the development of specifications and the evolution of design, implementation and test
- Designed systems utilizing Sun Solaris 10, Red Hat Enterprise Linux 6 and AIX 5L
- Significantly increased storage space; analyzed and matched workloads to a cost effective solution
- Created shell scripts and cron jobs that monitored and reported security issues
- Resolved security vulnerabilities by analyzing and recommending improvements in communications and network security at the component level
- Ensured business continuity by designing, implementing and testing disaster recovery systems
- Managed, monitored and tested individual and group user access privileges and security
- Created checklists and collected audit data for compliance with SOX and PCI certifications
- Developed, implemented and verified security policy and access management compliance
- Monitored system performance and prevented resource exhaustion using ssh, sar, vmstat, iostat, netstat and nmon
0-5 years of experience
Created a company directory providing contact info and locations for the vast employee base.
- Resolved trouble tickets quickly and efficiently, dropping backlogged tickets from 1,000+ to under 100.
- Wrote custom scripts and automated tasks to free up research and project time.
- Eliminated extended downtime of network and processes by installing and configuring a Nagios server to monitor Windows/Linux servers.
- Raised the level of expansion and research by automating tasks freeing up time for research and testing.
0-5 years of experience
Provided system administrator support for all NHGRI Linux servers and workstations
- Provided HPC system administrator support for the larger Beowulf cluster and the newer SGE cluster
- Configured and maintained all web servers
- Configured, tested, and managed software installs (typical and custom)
- Served as communication conduit between programmers and network operations central staff
- Planned, tested, and introduced new systems into the infrastructure
- Worked with other administrators to strategize and improve systems/productivity
- Maintained security and mitigated threats as new ones were identified
0-5 years of experience
- Independently identified and performed general administrator/engineer tasks (patches, application upgrades, etc.) on over 60 Red Hat and FreeBSD servers.
- Wrote custom scripts to test the CSMC’s compliance with the Defense Information Systems Agency’s (DISA) Security Technical Implementation Guide (STIG) for RHEL 5. Installed anti-virus and rootkit checkers on all CSMC RHEL servers.
- Administered Sourcefire security sensors, applying database and system updates. Won two quarterly awards for my willingness and ability to work outside my specialty and assist other departments.
- Worked extensively with security engineers to research cybersecurity issues.
- Helped manage the security R&D lab.
- Inventoried and administered Red Hat Enterprise Linux (RHEL), FreeBSD, and VMware ESXi servers, writing several utilities to manage them simultaneously.
- Installed and configured Nagios system monitoring, writing custom scripts for ESXi servers.
0-5 years of experience
Installation and Administration of Linux Operating System using interactive method.
- Build virtual Linux server and Windows server using VMWare and Xen when needed for testing.
- Implemented sudo utility throughout the environment for ESB servers and documented the process.
- Worked with Backup team to install and configure networker client on the Linux servers.
- Used Tivoli for server monitoring. Created view for Development users to review Broker and MQ stats.
- Involved in administration and setup of various High Availability clusters on Linux & Solaris servers using VCS 4.1 and Redhat Cluster Suite.
- Participate in installing and configuring of UNIX/Linux based Oracle 10g products.
- Wrote Unix/Perl Shell Scripts for day-to-day system administration activities and perl
0-5 years of experience
Responsible for installing and administrating 50+ Linux servers and 20+ Windows servers
- Interact with the clients to talk about the problem and requests regarding the complex systems
- Configured and administered the network infrastructure
- Established and managed Vyatta and iptables firewall
- Supervised backup and disaster recovery operations
- Managing servers on VMware ESXi 3.5 and VMware Workstation
- Installing and maintain Sendmail, Postfix, QMail, DNS and OpenVPN servers
- Monitored network traffic and adjust system parameters to increase system performance
- Involved in shell scripting for system/application in automating server task, installing and monitoring applications
6-10 years of experience
Reduced downtime by performing regular server audits, designing and implementing system redundancy and high availability for servers and storage systems.
- Implemented a solid backup and recovery procedure which minimized data loss.
- Improved company website user experience by designing and engineering webservers using Apache, MySQL database with instant replication for global sites, implementing WordPress, phpMyAdmin, interface, PHP, running on Centos 5.8.
- Configured secure http, for SVN source control, and back-end communication with Progress Database.
- Planned and configured high availability NFS servers using Keepalived for auto-failover running on RedHat 5.6.
- Deployed and maintained Samba servers authentication using Ldap, and Active Directory for different departments.
- Installed and configured Linux servers hosting Oracle 11g on Redhat 6x for use by Human Resources.
- Supported SAN, NAS, Fiber Channel, LUNS, LVM, like EMC ClariiON CX3_20C using Navisphere Management Console, NetAPP and QLogic.
- Participated in compiling and deploying several business cases, such as business continuity and global high availability.
- Built multiple server systems and installed into racks.
- Completed remote repairs involving software solutions and hardware repairs.
6-10 years of experience
Provide design, development, and implementation of Navy SQQ-89 A(V)15 sonar combat systems course curriculum, highly technical courseware and related multimedia technology high-level training efforts for 120 military members yearly. Oversees the day-to-day operation of computer networks including hardware/software support, training, and special projects for Surface Ship Undersea Surface Warfare Naval Program simulation labs
- Developed initial instructor materials, technical/troubleshooting manuals, curriculum development and user guides to meet government standards.
- Hand- picked as a monitor for pilot courses, to include red line of instructor guides, student guides, testing material, media, and course master schedules. Ensured course curriculum was accurate and implemented for a successful turnover of courses to the US Navy.
- Conducted reviews of course material for operational and tactical accuracy prior to customer acceptance.
- Assist in providing system and network connectivity hardware/software support; maintains LAN user documentation including hardware/software applications, support logs and other related information.
- Install, maintain, research, analyze, monitor, troubleshoot and resolve server or data system and network problems
- Augmented document-teaching procedures for team of 10 technical trainers, encompassing quick reference guides and test results forms.
- Achieved high degree of customer satisfaction by connecting with customers; Helped customers attain achievable development plans, schedules, and project outcomes, ensuring success with training endeavors.
6-10 years of experience
Provided support with Linux and Solaris operating system to more than 10000 users including traders, DBAs and developers
- Jumpstarted, integrated, analyzed performance, managed for availability, tuned, provided troubleshooting of Solaris and Linux Red Hat servers
- Partitioned disks with Veritas VM and Solaris Disk Suite and maintained cluster settings using Veritas VCS
- Linked server names to IP addresses using DNS, maintained and distributed a central directory using NIS, maintained file system and printer sharing using NFS
- Supervised staff in computer operations, directed and checked their work
- Created technical and project documentation, briefs, reports, WIKI knowledge database
- Assured that all applications were installed with proper change control, policies and procedures
- Participated in emergency recover of production datacenter with 4000 servers
- Participated in complete data storage upgrade project
- Improved client communication for IT outages through introduction of web portal
0-5 years of experience
Install, configure, and support all Linux servers in a 24×7 multi-tiered web service
- Develop standards for installation and configuration
- Orchestrated and performed upgrade of Linux servers from 32-bit RHEL4 to 64-bit Centos5
- Defined timing and versions for software and hardware upgrades
- Initiated, designed, and implemented complete system configuration framework and change
- Architected and implemented virtualization solution
- Implemented central system log server with appropriate log file analysis
- Lead project to implement a better solution for alerting and trending of systems and services.
0-5 years of experience
- Provisioned new servers, imaging, and daily monitoring and maintenance of over 50 servers.
- Performed back up, file replications and script management for the servers.
- Tested and applied new software and programs.
- Planed and expanded current service offerings.
- Quickly resolved all IP network issues.
- Provided customer support via telephone, e-mail, knowledge base program and other tools.
0-5 years of experience
Provided managed hosting for the company website and managed the cpanel implementation which included a DNS cluster setup and customized exim mail filters to combat spam.
- Installed and Configure customized versions of MySQL, Apache, Sendmail & Php on RedHat Enterprise servers
- Implemented automated penetration testing jobs which notified company official via email or SMS
- Setup daily, weekly and monthly incremental backups jobs for the company servers
- Consulted in various way to improve network security using file integrity / host-based intrusion detection system
- Wrote custom mail filters for the mail server to curve company email spam assaults
- Setup and maintain the Bind DNS clustering software
0-5 years of experience
Performed troubleshooting to isolate and diagnose common system problems; documented system events to ensure continuous functioning.
- Recommended course of action and implements as approved.
- Analyzed logs, tracked and resolved software/hardware matters of significance pertaining to networking connectivity issues, servers, and applications to meet business needs.
- Upgraded system software and hardware components as requires; coordinated backups.
- Attended EMASS training to support IA knowledge of VMS.
- Familiar with retina software and updating findings to VMS on a regular basis.
- Utilized standard corporate tools to record change and problem activities for tracking purposes.
- Installed, tested, upgraded, and configured system files and services to enhance performance.
0-5 years of experience
Provided OS and infrastructure services for managed virtual private cloud solutions
- Built out support platforms for managed services
- Provided documentation and training to SME peers and technicians
- Worked on projects to automate customer private cloud provisioning and configuration
- Reduced ticket processing times by developing scripts and tools to replace manual tasks
- Adapted build processes from existing client procedures
- Managed integrated infrastructure stacks based on VMware, Cisco, EMC solutions
- Responded to tier 3 incidents and customer request escalations
0-5 years of experience
Standardized infrastructure while making it more robust, utilized Chef for deployment orchestration and configuration management.
- Anticipated traffic spiking up to 20,000 web requests per minute as we dominated a day’s news cycle and oriented web properties for same with Auto-Scaling and intense security reviews. Managed an outsourced contract to Dell SecureWorks.
- Responsible for storage administration across the organization: 20 Terabytes of organizational data as well as Memorial/Museum
- Forecasted future storage costs – fixed, ongoing, and time/engineering – for archive growth.
- Critiqued application architecture during review cycles with contract web application designers.
0-5 years of experience
Responsible for the administration, installation, configuration, troubleshooting and support of MySQL in Linux/AIX and Windows platforms. Provided technical support and training for more than 300 users on the organization.
- Developed Unix shell scripts to be used with MySQL to enforce standard process used by the development organization.
- Designed database system architecture, manage production databases to achieve high availability and scalability.
- Linux and Unix infrastructure design and management. Improved service performance and reliability through investigation and root cause analysis.
- Monitoring system logs and root’s email for important messages such as errors and warnings or hardware failure errors.
- Implementation of systems and scheduling automated and manual backups/restored to take production data and archive log files backup.
- Cisco router installation and configurations. Troubleshooting of Cisco VPN client related issues.
- Performing User ID creation, modification, deletion and maintain server security.
0-5 years of experience
Troubleshooting issues in a Red Hat Linux Enterprise environment affecting customer’s deadlines and productivity in a manner that minimizes intrusions in customers ability to carry out critical business activities.
- Performed swap space management and installed patches and packages as needed
- Scheduled jobs and automating processes using CRON and AT.
- Created and maintained file systems and performed RAID configuration on LINUX
- Accessed tickets on a daily basis while providing recommend solutions
- Performed hardware and software upgrades as requested and approved.
- Managed and maintained user accounts
- Configured and managed network interfaces
0-5 years of experience
Duties entail installation, maintenance and troubleshooting of AIX and Linux Servers. Hardware platforms consists of Regatta p690, p570, p550, H70 IBM servers. Storage Servers consist of Fast T900, Fast T600 and SAN.
- Managed Tivoli Storage Manager for the Backup and/or Recovery.
- Implemented security on AIX and Linux Servers.
- Migrated Netscape Web Server on AIX to Apache on Linux.
- Installed and configured Tomcat Application Server, FTP server.
- Configured autoyast for Disaster / Recovery.
0-5 years of experience
Day to day help desk role with Linux and windows power users.
- Troubleshooting remote server issues in time critical environment.
- Trained Junior Help desk peers on basic Linux use and commands.
- Advised and implemented companies system wide fedora and RHEL upgrades.
0-5 years of experience
Implemented full-featured open-source Network and Server Monitoring Applications.
- Installed, configured and maintained mission critical systems including DNS, DHCP, Sendmail.
- TCP/IP troubleshooting on Unix/Linux network.
- Web server, email, and user account administration.
- Performed networks/servers vulnerability tests to protect against unauthorized access.
- Installed and maintained Antivirus solutions to provide customers with comprehensive centralized Antivirus scanning for co-located servers.
- Carried out a variety of backup solutions under various system constraints.
- Monitored networks/servers for irregularities and addressed issues as needed
0-5 years of experience
- Monitored VoIP auto-provisioning server running Apache httpd.
- Designed and developed Nuvio’s VoIP order form and process.
- Developed scripts using PHP/Perl/MySQL to modify existing ionosphere VoIP devices/accounts to be transferred to Nuvio’s VoIP service.
0-5 years of experience
1 month project to install RHEL 5.4 on 10 HP Blade servers, prepare documentations and train end users.
- Install and configure servers for production, test and DR.
- Install and configure HBA Fiber Cards (bonding for failover)
- Configure the network services (DNS, DHCP, SMTP, NTP)
- Open ports for Firewalls and SQL
- Configure and register servers on RHN (Red Hat Network) for updates and patches.
- Prepare and provided documents to customer and train users in Linux.
0-5 years of experience
Started an online apartment locator business from concept that spanned technology development to business
execution, to profitability within 7 months. Designed and implemented the architecture of a PHP state machine
that serves web content. Configured both a RedHat Linux server and a FreeBSD server as web, mail, and FTP
servers.
- Performed competitive analysis of various business possibilities at the earliest stages of the startup.
- Identified winning business strategy that allowed the company to reach break even point in 7 months.
- Coded the fundamental framework for web site software.
0-5 years of experience
Installed, configured, updated and troubleshot services for clients such as OS level concerns, web server, database and application server.
- Performed troubleshooting and diagnostics on enterprise infrastructures that include Red Hat cluster services, MySQL replication, SAN, NFS, LVM, etc.
- Ensured that enterprise environments were engineered, configured and optimized for maximum functionality and availability. This included implementing solutions that reduced single points of failure as well as Linux system performance tuning on MySQL, Apache, varnish, and Nginx along with kernel tweaking.
- Wrote shell/python scripts to automate repetitive tasks.
0-5 years of experience
Interacted directly with Enterprise customers via telephone and ticketing system. Consulted with customers to provide fanatical support. Day-to-day work includes, but is not limited to: patching, security analysis, setting up users, writing and executing maintenance plans, and troubleshooting various issues in regards to applications, Linux, and networking. Many of these customers are fortune 500 companies.
- Wrote tools to automate processes and increase efficiency utilizing Python, PHP, Perl, C, and Bash/Shell.
- Mentor new hires on [company name] tools and the operations of the company.
- Administered various system level technologies including Network File System (NFS), Samba, LDAP, Package Management (yum/up2date), Red Hat Cluster Suite (RHCS), High Availably Networking (NIC Bonding), and Log Management (rsyslog, syslogd, syslog-ng).
- Administered various application level technologies including Apache, MySQL (including replication), Tomcat, JBoss, PHP (Under Apache).
- Familiar with various performance monitoring and alert monitoring technologies including SiteScope, Nagios, Cacti, and Munin.
0-5 years of experience
Responsible for large complex Solaris, RedHat, SuSe, VMware & Xen Virtualization environments.
- Kernel recompilation & tuning to support large enterprise Xen Virtualization environment.
- Lead & successfully completed IT integration project on company acquisition.
- Working with different Business Units and DBAs on design and implementation of Test, Development and Production systems.
- 24/7 On-call rotation responsibility.
0-5 years of experience
Administer local and remote 100% Command Line Interface (CLI) Red Hat Enterprise Linux servers (Web servers, Monitor servers, Utility servers, Database servers & Map servers).
- Utilize Kickstart and YUM to build and patch Linux servers.
- Research, stage and implement new patches, rollouts and upgrades for various application and hardware to maximize integrity and efficiency of the system.
- Develop and maintain highly available services including Linux clustering and redundant web services.
- Test new software and configurations in VMWare.
- Administer SharePoint portal and remedy ticketing system to coordinate events and end user issues.
0-5 years of experience
Monitored 50 nodes of a Linux server farm in the Mediaplex’s data center
- Setup and maintained DNS servers, Apache web servers, and network switches
- Installed Secure Shell to provide secure telnet from main office to nodes in the data center
- Wrote shell scripts to backup log files and extract files according to customer’s needs
- Install new are and demo old servers
- Maintain Data center compliance and cooling system
0-5 years of experience
Monitors Health and Status of servers running the Linux Operating System
- Monitors Health and Status of mission critical network infrastructure
- Provides Tier 2 support for various servers to include coordination of hardware replacement and starting and stopping of critical services and analysis of log files to determine causes and fix actions.
- Utilizes a variety of tools to remotely administrate and work on systems such as secure shell, DRAC, and KVM’s
- Documents work done in tickets, so that my relief and new employees know what was done to fix an issue.
- Improves documentation to make sure that it is easy to follow and understand.
0-5 years of experience
Built YUM repositories on servers.
- Installed and configured Red Hat on Dell E2960.
- Created and managed user group accounts and account permissions.
- Implemented password aging.
- Monitored system performance using top, ps, netstat, vmstat and cpuinfo to check CPU utilization, network traffic and memory usage.
- Installed and configured samba and NFS.
- Monitored system logins.
- Implemented RAID 0, 1 and 5 for creation of logical volumes using VERITAS Volume Manager.
- Installed and managed packages using YUM and RPM.
0-5 years of experience
Installed RedHat Linux using kickstart.
- Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
- Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
- Performed RPM and YUM package installations, patch and other server management.
- Installed and configured Logical Volume Manager – LVM and RAID.
- Documented all setup procedures and System related Policies (SOP’s).
- Provided 24/7 technical supports to Production and development environments.
- Administrated DHCP, DNS, and NFS services in Linux.
- Created and maintained user’s accounts, profiles, security; permissions, disk space and process monitoring.
- Provided technical support by troubleshooting Day-to-Day issues with various Servers on different platforms.
0-5 years of experience
- Provided Operational support at the U.S. Geological Survey Headquarters. Support included server builds and maintenance, SMTP support, patching vulnerabilities, server upgrades and moves.
- The server environment consisted of mainly IBM hardware with Dell and HP servers, running SuSE Enterprise Linux 10-11.3 SP3, Windows 2008-2012 Server. The SMTP servers were SuSE Enterprise Linux running Postfix.
- SMTP support consisted of checking queue alerts, adding transport routes, and blocking sender domains and IP addresses when necessary.
- As a member of the Operations Team, was also responsible for PDE Support, ensuring that customers were able to join and maintain connections to the Google Enterprise Mail system with their smartphones and tablets. Provided direct customer service to all USGS smartphone and tablet users.
- Monitored PDE compliance and performed remediation steps for devices that were outside of DOI policy.
- Installed and configured ESXi onto server hardware as part of virtualization initiative.
- Researched and tested new technologies and software to determine potential effects on the server environment, examples being IPv6 testing, multiple profiles for PDE, and BYOD testing.
0-5 years of experience
Part of the Global Transaction Services Division (GTS). GTS Moves large amounts of money on a daily basis in 164 countries, so projects and support roles require expert level service. I assist and implement projects involving UNIX/Linux, SAN, Backup, Network, Load Balancing, DR Planning and many infrastructure activities needed. I addition I also perform a support role for Level 2 and 3 only, as first level is done offshore.
- Project Engineer and Level 2/3 support for Global Transaction Services.
- Support LPARs, and VIO, VMware Clients (Red Hat), Solaris Zones, Solaris/AIX/Red Hat standalone Systems. All aspects of Project Phase.
- Perform Support, Kernel Patching, Compliance Efforts, SAN and NAS Migrations, and Capacity Planning for Mission Critical systems and Projects. Support 1000+ servers in environment while implementing various projects.
- Perform Capcitity Planning and Forecasting of Hardware for Projects to assist with cost estimates.
- Perform Shell scripting to automate tasks, system post builds and repetitive tasks.
- Extensive documentation and Planning for all Projects
0-5 years of experience
Responsibilities as a Unix System Administrator include monitor and tuning systems to make sure of the optimum level of the performance.
- Keep a track of the appropriate software and upgrade the software packages e.g solaris patches and redhat packages.
- Responsible for the support of the moderately complex data and also helps in the design and configuration of system landscape.
- Develop and maintain, library and procedural documents of the system e.g Storagetek SL 500
- Interact with the clients to talk about the problems and request regarding the complex system issues
- Responsible for daily running and optimization of the hardwares/OS housing the customers application.
0-5 years of experience
Install, maintain and troubleshoot Debian/RedHat/Centos/Unbuntu Linux virtual servers.
- Manage multiple notifications (Nagios, OSSEC, Twitter, CopperEgg) to ensure servers are always operational.
- Support of contract and in-house programmers and assist with QA testing.
- WordPress Admin/Support – multi-site
- Migrating Drupal websites from several servers to a cloud based server.
- Maintain PCI – compliance scans and problem solving on a monthly basis.
- Responsible for cron transferring files between secured servers.
0-5 years of experience
- Installation, Configuration, and Administration of Red Hat Enterprise 3/4 using Kickstart.
- Worked and performed data-center operations including rack mounting, cabling.
- Administrated DHCP, DNS, and NFS services in Linux.
- Creating and maintaining user’s accounts, profiles, security, rights disk space and process monitoring.
- Created new groups and tested first in development, QA boxes and then implemented the same in production servers.
- Troubleshooting Day-to-Day issues with various Servers on different platforms.
0-5 years of experience
Maintain and support IBM blade servers LS-20’s, Dell power edge servers 1950’s and 2950’s, and HP ProLiant DL185’s.
- Operate and support all servers using RedHat Linux 4 update 5.
- Perform various kickstarts via Dell remote access using DRAC 5 software.
- Allocate resources to ESX VMware servers/clients.
- Test deployed systems for access and connectivity.
- Automate user account management using Bash shell scripting.
- Troubleshoot network connectivity issues relating to the Cisco Routers. Perform router hardware installations. Troubleshoot SAN connectivity issues related to performance and database connectivity.
- Manage 6 CONUS sites and approximately 40 RedHat Linux servers at each site. Provide over the phone support to various CONUS sites. Rack and stack servers according to rack elevation diagram.
0-5 years of experience
Maintain and support IBM blade servers LS-20’s, Dell power edge servers 1950’s and 2950’s, and HP ProLiant DL185’s.
- Operate and support all servers using RedHat Linux 4 update 5.
- Perform various kickstarts via Dell remote access using DRAC 5 software.
- Allocate resources to ESX VMware servers/clients.
- Test deployed systems for access and connectivity.
- Automate user account management using Bash shell scripting.
- Troubleshoot network connectivity issues relating to the Cisco Routers. Perform router hardware installations. Troubleshoot SAN connectivity issues related to performance and database connectivity.
- Manage 6 CONUS sites and approximately 40 RedHat Linux servers at each site. Provide over the phone support to various CONUS sites. Rack and stack servers according to rack elevation diagram.
0-5 years of experience
Responsibilities include enterprise backup using HP Omniview and Commvault Galaxy.
- Responsible for daily administration of HP-UX, Sun Solaris, and Redhat Enterprise Linux.
- Responsible for technical administration of the architecture listed below in the Global Testlab environment.
- Responsible for daily administration of the production VMware environment which currently consists of 5 4-way and 2 2-way dual core ESX servers, Virtualcenter 2.0 and over 100 virtual machines.
- Responsible for the Global Testlab VMware environment listed below.
0-5 years of experience
Responsible for the operational upkeep of 12 servers to include server maintenance, patching, security updates.
- Collaborates with Information Assurance team to ensure all servers are properly configured in compliance with DISA STIG standards.
- Responds to simple & complex Remedy trouble tickets in a timely fashion and provides Tier 1 & 2 user support.
- Install new and rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, in accordance with standards and project/operational requirements.
0-5 years of experience
Build and install new Red Hat and CentOS computers for internal engineering personnel and external customers. The installations included OS customization and building/installing applications such as apache, apache-tomcat, MySQL, and java. Used Subversion (SVN) for version control and syslog for troubleshooting.
- Monitor and maintain as necessary, computer, firewall, and load-balancer performance uptime, performance, and reliability. Used such tools as nagios, collectd, iptables, cfengine, and other system and network utilities.
- Perform monthly security scans to ensure systems, network, and services met security standards.
- Backup computer system and application data using NetBackup.
- Built and deployed virtual servers for LDAP, transcoding, and various other functionalities.
- Maintain Network Appliance (NetApp) servers for file storage.
0-5 years of experience
Provided daily Linux System Administration support consisting of proprietary and COTS hardware and software networked via global terrestrial and RF/satellite communications equipment in support of 7x24X365 Network Operations.
- Provides L-Band satellite services to FBCB2/CECOM business partners and information technology professionals in support of OIF/OEF/OND theater of Operations.
- Monitor Red Hat Linux Systems using real-time, traffic tracking and trend analysis supporting the BFT network by using Linux System tools
- Provided technical leadership to the BFT/NOC support staff in troubleshooting Red Hat Linux System problems and addressing network outages.
- Installs system and security patches on Red Hat Linux Servers in accordance with Army/DOD IT security standards.
- Interfaces with Network Control Center to address and escalate Linux System operational issues via system monitoring and reporting via proprietary and standard COTS tools.
- Performed monthly system maintenance on Red Hat Linux Systems and Cisco Routers by rebooting the servers and switches.
- Troubleshoot classified web base TCP/IP applications and services in Windows and Linux environment.
0-5 years of experience
- Linux System Administration.
- Installation and configuration of initial server setup.
- Provided web hosting solutions and shell services.
- Managed all aspects of system administation.
- Meeting customer requirements and expectations.
- Ensured optimal system stability, security and preformance.
Linux Systems Administrator Duties and Responsibilities
Based on job listings we analyzed, duties common to most Linux systems administrators include:
Evaluate Hardware and Software Technologies Linux systems administrators evaluate hardware and software to determine the best design and configuration for the production environment in which they are employed.
Identify and Resolve System Issues They are key in identifying any current or potential issues that might hamper the system’s optimal performance and work to resolve these system problems.
Maintain the System Linux systems administrators help keep the system running smoothly by updating and upgrading network software and hardware and ensuring that necessary backup is provided for the network equipment configurations.
Attend Team Meetings Information related to IT changes, developments, and future project needs are shared by Linux systems administrators at production team meetings.
Write Documentation Linux systems administrators write documentation that will help system users and the systems administration team to utilize the system efficiently and effectively.
Linux Systems Administrator Skills and Qualifications
Linux systems administrators are computer-savvy professionals with a mind for analytical problem resolution. Employers prefer candidates with at least a four-year degree, prior work experience, and the following skills:
- Problem-solving skills – technical issues often arise with the system or servers, and system administrators must resolve these issues as quickly as possible to prevent a halt in production
- Technical aptitude – Linux systems administrators work with various equipment in the maintenance of systems. This equipment changes frequently so they must quickly learn how to use it, often own their own time
- Research skills – research is often necessary for Linux systems administrators to figure out how to resolve complex system issues
- Multitasking skills – because Linux systems administrators work on multiple projects simultaneously while also troubleshooting and resolving technical issues as they arise, they must be able to juggle multiple priorities effectively
- Interpersonal skills – Linux systems administrators work in a team environment and consult with outside vendors, so they must interact with others in a professional and positive manner
Linux Systems Administrator Education and Training
A bachelor’s degree in computer science or a related field is a requirement for Linux systems administrators. A master’s degree is a plus. Employers prefer job applicants who have at least two to five years of experience and proficiency in scripting languages.
Linux Systems Administrator Salary and Outlook
Location is the biggest factor that affects a Linux systems administrator’s salary. The average national salary for this position is $70,000. Those at the bottom of the pay scale earn $43,000 annually, while top earners take home $102,000. Bonuses for systems administrators range from $300 to $10,000, and profit-sharing averages $200 to $8,000 annually. Job prospects for Linux systems administrators are favorable. The Bureau of Labor Statistics projects an average growth rate of 6 percent through 2026. Prospects will be most favorable for job candidates with a four-year degree in computer science or computer network and systems administration and who are current on the latest technology, particularly cloud computing.
Helpful Resources
We compiled a list of resources that will help you continue to explore a career as a Linux systems administrator:
The League of Professional System Administrators – LOPSA is a nonprofit association that offers its members educational and networking opportunities, a forum where they can receive support and feedback on ideas, and a community where they can discuss issues related to systems administration
Association for Information Systems – AIS members hail from nearly 100 countries and have access to current developments and trends in the industry, information systems conferences around the world, career services, and connection to some of the most renowned information system academics and professionals
Linux Cookbook: Practical Advice for Linux System Administrators – author Carla Schroder provides a collection of tips, tools, and scripts that Linux system professionals will find invaluable. She covers topics such as how to deal with odd devices that Linux hasn’t supported well in the past, building multiboot systems, and handling audio and video
Networking for Systems Administrators – written by Michael W. Lucas, this book guides systems administrators in the task of diagnosing their own network issues. It teaches readers the inner workings of modern networks, TCP/IP basics, the correct tools needed to diagnose network problems and how to properly use them, network troubleshooting, how to see traffic sent and received, connectivity testing, and effective communication with your network team