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0-5 years of experience
Managed Windows / Unix-based development, test, and production servers for Tucson Storage Technologies Group. Provided Level 1 support and coordinated server releases / fixes for ID Workbench authoring tool for Tucson ID Team of users. Provide system administrative support for Exceed on Demand, Lotus Notes, Build390 test, and production CFWEST Intel Windows / Linux servers.
- Reduced OS install, configuration, security settings, and compliance application installs 15% by rewriting / simplifying the existing server build process.
- Consolidated SAN McData director and two Brocade FC switches into one functional fabric that is managed by Brocade Data Center Fabric Manager (DCFM) Enterprise.
- Built BladeCenters to support from 7 to 14 Windows 2003/Linux blade servers each which reduced capital investment in power, space, and stand alone servers.
- Provided ID WorkBench client installs, configuration, and problem resolution for 75 ID users and saved the company remote support costs of $2K per seat.
0-5 years of experience
Installed, configured and maintained RHEL 4 -5 workstations and servers for the ADAPT system in various locations in the US
- Setup, configured, and debugged network configurations for RedHat servers and workstations
- Diagnosed and resolved hardware problems with Dell servers, workstations, and other hardware equipment
- Setup and maintained test lab for software releases and troubleshooting purposes
- Provided 24/7 technical support and resolution to operators’ requests concerning system hardware, software, and network issues
- Documented procedures and helped develop guides to aid in the troubleshooting of software and hardware systems and configurations
- Researched many different software and hardware tools to support the ADAPT platform
- Monitored and maintained system performance goals
0-5 years of experience
Development of advertisement serving software plug-ins for OpenX on both Windows and Linux.
- Setup & maintenance of Apache servers (on CentOS), MySQL databases, and programming general task- completing scripts.
- Developing a backup/recovery plan for all servers in preparation for hardware failure and penetration from outside sources.
- Created a secure ‘sandbox’ for testing applications on local staging server. Found and reported major security
- Redesigned and improved usability of back and frontend systems. Integrated with major APIs, saving hours of manual labor per day and thousands of dollars in labor time.
0-5 years of experience
Installed and configured JBoss Enterprise Application Platform (EAP) for United Bank, and United Healthcare facilities.
- Provided Web Server Support [Apache/Tomcat, IIS, JBOSS, and Websphere].
- Provided day to day support of the Test Environments and the users of their environments
- Identified, documented, and communicated potential system problems.
- Managed Red Hat Linux and VMware ESX servers
- Played a key role in planning disaster recovery using configuration management and the Red Hat Cluster Suite.
- Modernized security policy for Red Hat servers
0-5 years of experience
Administrator for InsightETE’s client data collectors which run on RHEL 6
- Wrote technical documentation for entire product line
- Consistently praised for efficient time management and work ethic
- Designed new logo for the association
- Completely redesigned website with a focus on ease of use and aesthetics
- Trained staff on maintenance of website
- Consistently under budget and on time with deliverables
0-5 years of experience
Performed day to day administrative tasks such as creating user and group accounts, directory services, file systems shares, and permissions.
- Installed and configured various services like DNS, DHCP, NFS, Apache Web Server, Samba and SSH.
- Managed and installed patches and software packages using YUM and RPM and creating YUM repository files for offline servers.
- Worked with system, network, security and storage teams to prepare and configure new servers for the environment.
- Managed and resolved incident tickets opened by clients as well as those logged by event monitoring system.
- Writing scripts for cronjob entries, which included maintaining various log files.
- Provided assistance and documentation which allowed the 24/7 operations department to troubleshoot and correct problems without needing to page other employees.
0-5 years of experience
Performed custom kickstart installations to prepare servers for migration to new datacenter in corporate office.
- Configured ldap, ntp, and iptables on production servers as well as bonded network interface cards for active failover.
- Configured restricted shell (rbash) to limit developers from altering essential system files.
- Created ldap accounts for users to allow access to allow centralized logins to servers under there profile.
- Configured system group users to allow access to software channels for software installations via Red Hat Satellite Server.
- Provided 3rd tier internal support for end-users on a Linux platform.
0-5 years of experience
Worked on migration of Sun Solaris Unix servers to Linux (Novell/SuSe 9.0) on Dell Blade Servers and Windows 2003.
- Provided day to day support to IT applications and users group.
- Responsible for supporting Legato NetWorker Backup 7.2 running on Windows 2003 and Veritas Backup Exec 9.1 on Novell servers.
- Administered Websense Enterprise WEB content filtering system: set up filtering system to block access to specific internet sites.
- Managed internal and DMZ SMTP mail relay servers, Internal and External FTP servers. Migrated SMTP mail relay servers from Sun Solaris to Linux server using Postfix.
- Provided support for Intranet site running Oracle 9i, Apache and Tomcat.
0-5 years of experience
Working as a volunteer, to give back to a group which has helped hundreds find work.
- Worked with the group’s president to create a harmonious and powerful web site.
- Developed and implemented back-end database structure (PHP, My SQL under Linux).
- Performed admin duties for Linux server (Ubuntu).
6-10 years of experience
Joined AirDat as Senior Linux Administrator. Later promoted to HPC Administrator to develop and maintain company’s HPC capability.
- Designed, provisioned, and managed [company name]’s High Performance Compute Clusters. With an aggregate total of 900 nodes and 13,500 cores, the HPC Clusters consisted of both Intel-based blade server and IBM Power6-P575 nodes. The Clusters run the mission critical weather applications that are used in products.
- Configured and managed cluster file systems consisting of 750TB Lustre and 80TB GPFS file systems. Managed DDN S2A9900 and IBM DS5100 storage arrays used as targets for file systems
- Maintained ancillary systems and services used by HPC Clusters, including Infiniband fabric switch gear and software services for cluster management and job scheduling, using xCAT on CentOS, IBM CSM on AIX and Puppet for HPC systems management
- Developed architecture for post processing and product delivery framework, designing systems based on Postgres SQL and Tomcat REST API for product storage and publishing
- Utilized Condor to develop parallel applications for post processing weather model output, developing numerous post processing jobs for direct computer consumption
0-5 years of experience
Installation, Maintenance, Administration and troubleshooting of Sun Solaris 8,9 and Redhat 9, AS 3.0 servers on various hardware platforms that include Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
- Performed automated installations of Operating System using Jumpstart for Solaris and Kickstart for Linux.
- Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
- Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
- Configured firewall based on Redhat Linux and FreeBSD 4.x that has three network interfaces.
- Configuration and administration of Linux application servers, X-terminals and Diskless Workstations. Providing day-to-day user administration like adding/deleting users and managing users’ queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system tools such as netstat, iostat
- Developed, customized and build packages on Solaris and rpms on Linux for deployment on various servers through Software Development Life Cycle.
- Designed bash, ksh, and Perl scripts to automate application and system management activities. These scripts provided the following functionality: application startup and shutdown, monitored systems and applications health, and web site management
- Installation, Management, Configuration of LAN/WAN systems utilizing Cisco switches and routers.
- Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment. Worked with Apache and developed several UNIX scripts to automate web tasks
- Managed existing documentation for systems and created new procedures to support new products. Created documentation for disaster recovery project
0-5 years of experience
Installed and configured a LAMP server on CentOS(Red Hat) as well as configured firewall rules utilizing iptables in order to harden the environment
- Utilized ssh-keygen within DSA encryption to make a connection without a password from a remote linux cloud server to a local machine
- Installed the key to the local network’s server
- Initiated a nightly MySQL dump on one of the two load balanced cloud servers, compressed the database, moved the backup to a local machine through scripting and cron.
- Collaborated with a PHP developer to assist with code migration from Windows Server 2008 to CentOS(Red Hat) due to case sensitivity on Unix systems
- Managed and maintained 12 mail servers for mail campaigns; updated MX records as well as reverse DNS with the ISP daily
- Configured the MySQL server for performance by placing large portions of the database in to memory to avoid swap
- Scrubbed 7 million email addresses by running a simple email ping on them (The script marks the emails as bad if the email ping is rejected. Then spawned several servers that concurrently connected to the MySQL database while each of them utilized the script to verify the email. By executing the script concurrently on several machines, this sped up the process of verifying each email.)
- Added as well as migrated 25 different websites within Windows Server 2008 and then to Linux
- Hardened the local Linux server by utilizing the ACL security model, restricting access to sensitive information by employees within the organization
0-5 years of experience
Linux Administrator for the MicroTerabyte project. Responsible for the physical build of the MicroTerabyte clustered database appliance product, including rack and stack, establishing network connectivity, kickstarting Redhat servers from bare metal to validated readiness for storage fabric integration. Responsible for the integration of the MicroTerabyte storage and server cabinets into customer networks upon delivery. Worked with team members to provision storage, create infiniband zoning between fabric director, storage array and hosts and establish host storage visibility and multipath policies. Responsible for design and implementation of EMC Networker SAN based backups, and integration with Oracle RMAN.
- Drove the identification, evaluation and ultimate acceptance of Open Source monitoring software Zenoss for inclusion in the MicroTerabyte product. Demonstrated that Zenoss provided enterprise class capabilities for a far lower price point as compared to products such as IBM Tivoli and CA Unicenter products, resulting in better value for the end customer.
- Developed shell script that validates the Redhat build for proper package selection, kernel parameters and existence of various services related to storage integration and Oracle cluster verification. This results in saved time and higher confidence in verification of operating system readiness for next steps of build process.
- Developed utility for automatic creation and propagation of OpenSSH asynchronous keys across Linux cluster nodes for oracle cluster software installations. Used a shell script to verify node network reachability and key generation, and to drive an expect script for the propagation of the keys to all nodes.
0-5 years of experience
Provisioning servers from VMWare vcenter and install Redhat, CentOS and Ubuntu OS on the servers.
- Install, maintain and provide Support to application servers like Websphere Application
- Wrote perl scripts for Netezza database backup. Also tested and planned database
- Applied patches to operating system and websphere applications
- Configured AD authentication for Dev and QA environment using kerberos, winbind & samba
- Transferred data from an older HPUX Cache database server to a new Redhat server.
- Adding and configuring NAS and SAN storage to the SAS systems.
- Open support ticket with IBM and Redhat and follow-up for root cause analysis.
0-5 years of experience
Managed Red Hat web and application servers and associated software
- Managed Solaris web and application servers
- Managed HPUX web and application servers
- Coordinated within team to maintain critical business infrastructure
- Coordinated with other departments to accomplish mission critical system changes and maintenance
- Supported enterprise users to help them in reaching their technical goals
- Analyzed and troubleshot server security.
0-5 years of experience
Installation, Maintenance, Administration and troubleshooting of Sun Solaris 8,9 and Redhat 9, AS 3.0 servers on various hardware platforms that include Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
- Performed automated installations of Operating System using Jumpstart for Solaris and Kickstart for Linux.
- Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
- Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
- Configured firewall based on RedHat Linux and FreeBSD 4.x that has three network interfaces.
- Configuration and administration of Linux application servers, X-terminals and Diskless Workstations. Providing day-to-day user administration like adding/deleting users and managing users’ queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system tools such as netstat, iostat
- As a Unix System Engineer Developed, customized and build packages on Solaris and rpms on Linux for deployment on various servers through Software Development Life Cycle.
- Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment. Worked with Apache and developed several UNIX scripts to automate web tasks
- Managed existing documentation for systems and created new procedures to support new products. Created documentation for disaster recovery project
0-5 years of experience
Responsible for operating, configuring and administering Linux/Unix Servers.
- Working knowledge in Mail Server applications using SMTP/POP3/IMAP such as MailEnable, Spam assassin, Qmail, and Sendmail
- Utilize applications software in support of the managed hosting services (backup services, security services, network services, etc.).
- Performed Linux/Unix administration including assisted customers with troubleshoot and resolve disk quote related issues, assisted email administrators with questions and resetting of passwords and Setup new user IDs and auto-forwarding
0-5 years of experience
- Designed and implemented VPN solutions for mid-sized bank, connecting 15 branches using OpenS/WAN, SQUID and IPTABLES.
- Security auditor for multiple clients ranging from banks to public school systems, utilizing wireless security tools such as SNARF and SNARE, security compliance training and auditing for banks and HIPPA compliance training for public school systems and local health care centers.
- Supported multiple client websites running on SUSE Linux 8, DEBIAN 3.1 and Redhat ES2.
- Designed network solutions catering specifically to school systems.
- Managed remote computer labs for multiple school systems.
0-5 years of experience
Planned, installed, and administered HP Networking SAN storage environment consisting of EVA4400, EVA6400, EVA8400, EVA8100, 3PAR v400, 3Par T800 and several Brocade SAN Switches including Director-level Brocade core switch (4/256). Supported both local Roseville HP site as well as remote sites in India and Singapore. Administration duties included: LUN creation, performance monitoring, capacity planning, firmware upgrades, SAN zoning, host presentation, troubleshooting.
- Primary Backup Administrator using HP Data Protector and HP StoreOnce 6500 D2D. Architected, installed, and configured a complete overhaul of the HP Lab backup environment. Old environment was using outdated Data Protector software, tape-based backups, no de-deduplication technology. New architected solution consisted of the latest in HP’s D2D (disk to disk) hardware, the latest version of Data Protector, and cutting edge de-duplication technology. Backup times were reduced significantly as well as the amount of storage required for backup data.
- Backup administrator for several large ESX clusters which housed over 500+ virtual Linux workstations as well as Tier2 Windows and Linux servers (RedHat, CentOS).
- Linux/Unix support for the Business Intelligence group. Administered several Linux and HP-UX servers running Oracle 11g RAC.
0-5 years of experience
Management of SUSE Linux servers including installation, maintenance and troubleshooting.
- Nagios monitoring using custom monitors, maintaining and adjusting existing monitors and responding to generated requests.
- Management of Apache servers including installation, maintenance and troubleshooting.
- Working with developers to ensure upcoming deployments are correctly implemented and supported.
- Working with front-line support to ensure services run 24/7 including multi-site failover and other on-call duties.
0-5 years of experience
Provide tier 2 support for all Virtual Dedicated and Dedicated Server customers.
- Performance tuning for MySQL and Apache.
- Perform server migrations from and to multiple different operating systems.
- Responded to alerts/incidents for managed servers as part of the Assisted Support Program (no on call rotation).
0-5 years of experience
As a member of a 3 person team managing over 100 servers, real and virtualized, on x64, pSeries and SPARC Responsible for maintaining PCI compliance as mandated by external agency. Created SSO environment and documentation standards, and consistent naming convention. Worked closely with Oracle and Web Development teams, Extensive use of VMWare. Utilized RHEL on x64 and SuSe on z/Series, as well as Solaris and AIX.
- Worked on z/Linux project to implement SuSE Linux virtual machines on S390 Mainframe
- Migrate old applications from SCO and Solaris to RedHat Linux on Physical + VMWare vSphere
- Developed SSO Implementation using Active Directory and DFS structure to allow users to access files across platforms with ease
- Worked with security team to invent new ways to detect security issues
- Led push to standardize deployment methods, OS Configuration, and documentation.
0-5 years of experience
Worked in the NOC as part of a team responsible for supporting a mission critical hospital system called Frontiers. Tasks consisted of managing application servers, unlocking stuck cases in the MySQL database, adding new users and user support for Doctors, CRNA’s and RN’s
- Attended and contributed to project management meetings related to the live production environment at INOVA Fairfax hospital
- Performed onsite troubleshooting and repair of the equipment located in PreOP, OR’s and PACU’s.
- Created Bash scripts to automate the backups and upgrades of the system.
- Tracked and documented the equipment hardware list of over 350 system located at several sites.
- Remotely administered the application servers using VPN and SSH
- Installed new equipment and/or fixed problems with broken systems at the Data Center
- Provide internal IT support to the development teams
- Setup a RedHat kick start server to automate the installation of Linux production server to be deployed a client sites.
0-5 years of experience
Linux support – Deploy golden images of RHEL versions 3, 4, and 5 systems via xCAT automated build system to xSeries blades.
- Configure and deploy in house CA signed certificates to xSeries blades and RSA cards for secure remote management of blades and RSA equipped servers.
- Un-rack decommissioned servers and rack newly provisioned systems.
- Deploy Windows 2003 Server for remote Terminal services administration to support on-call remote support administrators.
- Worked with in house development team to perform subversion code check-outs and check-ins of internally maintained JBOSS code trunk and staging/testing in preparation for production roll out.
0-5 years of experience
Patched RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration
- ConfiguredLVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes
- Maintained and monitored all servers’ operating system and application patch level, disk space and memory usage, user activities on daily basis, administration on Sun Solaris and RHEL systems, management archiving.
- Installed, configured, troubleshootand maintain Linux Servers and Apache Web server, configuration and maintenance of security and scheduling backups, submitting various types of cron jobs
- Installations of HP Open view, monitoring tool, in more than 300 servers and worked with monitoring tools such as Nagios and HP Openview
- Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0/4.1
- Deployedand implementedNIS, NIS+ and DNS environment and implementedand maintained Proxy Server under Linux; issues regarding Samba Servers and perform hardware and software installs/upgrades.
- Setup and configured Apache to integrate with IBM Websphere in load balancing environment
- RHEL 4.1, RedhatLinux 8/9, IBM x series and HP ProLiant, Windows
0-5 years of experience
Disaster Recovery Testing Projects. Backup Images of each server SAN Luns in production are replicated to the DR servers. Within the DR Site, multiple copies are being replicated. In case of Disaster, the sync is split within the DR Site and the main copy is connected to the respective server to recover the data.
- Implemented the Veritas cluster failover test from active to passive node and patching the active node
- Creating flash archives using the flarcreate.
- Install, Upgrade and Licensing Veritas Volume manager.
- Exporting and Importing DiskGroups from one server to other.
- Installing and configuring Tivoli storage manager in Solaris Environment.
- Configuring and enabling multi-pathing and volume management software such as Veritas DMP
0-5 years of experience
Worked with a team of Linux System Administrators to provide support for HealthCare.gov
- Managed 2300 servers using various tools to monitors system health, tools such as New Relic, Splunk and Nagios
- Remotely administered servers using tool like SSH and Telnet
- Administrated DHCP, DNS, and NFS services in Linux
- Installs, upgrades and manages packages via RPM and YUM package management
- Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
- Designed Firewall rules for new servers to enable communication with application.
- Managed Disks and Files systems using LVM.
- Monitoring system logs for important messages such as errors and warnings hardware for failures.
0-5 years of experience
Use nagios for network monitoring and Secure Socket Layer (SSL) for secure access. Also formatting firewalls, network switching and routing settings for extra client security. Configured Certificate Authority to sign Certificate Requests for SSL and configure secure talk for ldaps, https, and smtps.
- Performed all necessary system administration duties to support Linux, HP-UNIX, Solaris client server environments.
- Implemented and configure system security parameters per UNIX environments to invoke privilege audit detail logging per root, sudo policies.
- Rendered all insecure protocols inaccessible or replace with secure versions; disable all unnecessary and insecure services and protocols.
- As Linux Administrator/Network Engineer, provide client support for Red Hat Enterprise Linux systems, VMware virtual systems, and network infrastructure.
- Also supported cPanel, Linux OS, Apache, MySQL and PHP.
- Served as sole database administrator for AutoCAD file server running on Linux 5.0 server shared on various client operating systems.
- Installed Tripwire Enterprise Monitoring Integrity Software per Linux, HP-UNIX, Solaris servers.
- Managed User Account Administration requests per In-house developed applications; audit group, shared, or generic passwords to meet PCI compliance standards.
- Kernel update patching and tuning
- Use Denyhost for host intrusion detention service (HIDS)
0-5 years of experience
Administered over 500 full sites and almost 3000 domains for all of Universal’s artist, label, recording company, and promotional sites
- Technical Lead for all public facing sites that ran on Linux
- Consolidation of assets from eight individual business units and new acquisitions to a single data center
- Automated deployment, and testing of sites for Windows and Linux platforms
- Performance tuning, troubleshooting, and support of deployments of Drupal, phpBB, WordPress, Code Igniter, and many fully custom sites
0-5 years of experience
Design, setup and configure Redhat 3/4/5 guest in a VMware ESX environment
- Setup and configure HP blades and IBM x server hardware
- Worked extensively on PCI compliance and patched servers for vulnerabilities.
- Installing, Configuring, & Maintaining Linux Servers locally & remotely using ILO
- Supported a large e-commerce website running in load balancing environment
- Part of the server consolidation and move physical RHEL server to VMware using P2V
- Provided support for production and development infrastructure and worked with global teams
- System administration tasks including managing users, software installations, monitoring servers
- Setup and configured VMware and RHEL in SAN environment
- Responsible for ensuring that documentation is accurate and maintained on a timely basis.
- Demonstrated skills as problem-solver, innovator, and collaborator
0-5 years of experience
Maintenance and Support for IBM AIX, Red Hat Linux Servers that are installed in IBM i5 server LPARs. Implementation and support for AIX Servers, Linux Domain Controller (OpenLDAP, samba, DNS, DHCP, NTP, Squid).
- Administration of AIX, Red Hat Linux Servers.
- Monitoring AIX server’s performance, Logs analysis for trouble shooting, applying patches, software installations, Working with LVM, Accounting, NFS Administration, SSH, TSM Client configuration, Backups and restorations.
- Installation and Configuration of OpenLDAP integrated with SAMBA (Storage Linked for Shared Resources) to work as Domain Controller for Centralized Authentication to all Desktops. Configuration and maintenance of Apache Web server, Internet sharing through Squid Proxy with ACLs and authentication through LDAP Database.
- Installation and Configuration of DHCP integrated with DNS. Implementation of NTP Server.
- Configuration of Antivirus in Linux Server.
- Configuration of software firewall for system level security.
- Hardening the Servers in Data Centre.
0-5 years of experience
- Linux Admin for Solaris, RedHat, CentOS & Ubuntu Servers both physical and VMware ESXi guests.
- Engineered solutions for server projects with security in mind; coordinating with staff & department heads to complete implementation.
- Managed servers for the UMW datacenter, Computer science, Library, Financial & Student systems.
- 24×7 On Call pager Support
0-5 years of experience
- Support and maintenance all company products in customer data center (Saman Bank http://sb24.com/En). Such as online banking, website, Customer club, switch (in banking concept), E-shop, and etc.
- Working with SUSE enterprise, Redhat, Oracle Linux OS, MySQL database, Oracle 11g Database in depth for support and maintenance the products.
- Support and maintenance VMware ESXi in customer data center and also, in the company.
- Working with Cyberoam firewall, design and implement the firewall with iptables in Linux.
- Wrote advanced bash scripting for create and run backup policy on application and database servers. In addition, Install and advanced configure apache, tomcat and Dotcms.
- Used more than 80 tips for hardening the servers to improve servers’ security level and provide a script to do that automatically.
0-5 years of experience
Lead Blade deployment engineer for Military Hospital Information Systems
- Documentation and Training specialist for new Linux and Egenera Blade configurations
- On call for support and travel 24/7
- Cisco Ethernet and Fiber switch administration.
- Installed and configured over 60 Linux and Window servers across the United States and Europe.
- Performance and patch management for Linux and Window servers.
- Project management for deployed systems.
0-5 years of experience
Linux administration of production servers, CF-Engine, Python support.
- CF-Engine is similar to Chef and Puppet, and I administered it as part of an Admin team responsible for hundreds of production servers.
- MSSQL
- Production Database for Java and Hibernate based popular web application
- Several additional support Databases
- Diagnosed Java issues in upgrade process from Java 7 to 8.
0-5 years of experience
Member of EMS CIP Team, documenting process, project management of decommission and / or destruction of CCAs as required.
- Trend Micro AV Monitoring
- Log Rhythm Monitoring, Alarm resolution
- Tabernus DOD HDD wiping for all decommissioned CCAs in the EMS environment. Upgrading and troubleshooting issues with vendor
- Centrify POC, vendor interface, rollout and configuration in QA and PROD. Migrating users from local Linux accounts to AD accounts.
- WSUS patch management and deployment to all CIP assets in the EMS environment.
0-5 years of experience
As a part of UNIX team, I was responsible for installation of ORACLE RAC 11g on Linux servers in data center.
- Daily troubleshoot of various issues including the smooth operation of ORACLE RAC.
- Kick starting servers via kicks tart configuration through PXE(Oracle enterprise Linux 5.4)
- Servers Hardening
- Bonding the Nics.
- Configuring kernel parameters limits and users.
- Upgrading kernel.
- Working closely with Database Team for oracle installation and database upgrading.
6-10 years of experience
Installed, configured, and administered Redhat Enterprise 4/5 using kickstart.
- Worked and performed data-center operations including rack mounting, cabling.
- Administrated DHCP, DNS, and NFS services in Linux.
- Created and maintained user 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.
- Troubleshoot Day-to-Day issues with vaious servers on different platforms.
- Installed antivirus softwares on the servers for protection
- Run system backup before patches are applied.
- Performed PC support and maintanance for over 200 people
- Managed call center activities to meet service level agreements
0-5 years of experience
Performs VMware 5.5, Windows Server 2008 and Red Hat Enterprise LINUX 6.5 Administration in [company name] Lab environment.
- Installation of IAVA software patches for RED HAT Enterprise Linux 6.5 and VMware 5.5.
- Support IBM Defense Operations Platform and Applications. (DOP)
- Support IBM BladeCenter H Chassis.
10+ years of experience
Designed and manage web hosting system using Linux OS and cPanel web control panel software
- Administer Linux servers providing web and email hosting, DNS, FTP, spam filtering and other services
- Provide web design services, script installations and modifications, and custom hosting configurations
- Setup websites using WordPress and other content management platforms and train clients in their use
- Provide local support for computers, notebooks, servers, networking equipment and mobile devices
0-5 years of experience
Administration of RHEL 4, 5 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
- Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers across ESX hosts.
- Jumpstart Solaris servers, custom configure, install packages, patches, harden. Creating LDOMs, installing Solaris, creating volumes, installing packages.
- Worked on Veritas Netbackup 6.5 which includes installation, creating policies, configuration and upgrading servers.
- Installing, configuring, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
- Worked on OVM 2.x, which includes installing, configuring, cloning virtual machines on x86 based servers.
- Worked on VMware open converter for P2V, V2P, V2V migrations, setup a complete DR environment.
- Worked and performed data-center operations including rack mounting, cabling.
- Installing, configuring, administering Veritas Cluster Server 5.0, creating service groups, adding resources, enabling attributes, testing fail-over.
0-5 years of experience
- 100+ Unix and Linux servers supporting over 750,000 users
- Directly responsible for monitoring, maintenance, troubleshooting, testing and day-to-day management of Zimbra and Cloudmark email systems, utilizing a combination of Red Hat Linux, Ubuntu Linux, and Solaris operating systems on x86 and Sparc architectures to process over 5,000,000 emails per day to over 750,00 email accounts
- Responsible for LDAP, Oracle database, cable provisioning, logging and monitoring, trend analysis, and websites
- LAN/WAN, VMWare and DNS server administration and management
- Network and systems security, infrastructure design and management, including daily monitoring for faults, abuse, and potential security or service threats
- Troubleshooting and management of TCP/IP routes, switches, routers and firewalls
0-5 years of experience
- Developed SFTP server infrastructure to enable enterprise extranet for secure file transfer.
- Deployed Puppet configuration management for the quality assurance environment.
- Provided Tivoli & Netbackup administration & support.
0-5 years of experience
- General UNIX/Linux Support
- High Availability clustering with Heartbeat/Pacemaker and HP ServiceGuard
- HP model RP8420 and K460 hardware support
- Permission issues, access requests, script debugging
- General escalation for esoteric knowledge and creative solutions
- Storage Area Network
0-5 years of experience
Perform OS installation & Upgrades on VMWARE/ Linux based systems
- Install & Administer clustered (GPFS) file systems
- Install & Administer fibre channel and network switch cards & drivers
- Support day to day operations of SAP /BWA & HANA databases
- Administer and install DNS/TCPIP networking components
- Use IBM Director, Dell Open Manager, CA Unicenter and HP Openview monitoring solutions
- Install & Administer DS35XX, DS47XX storage arrays
- Administer firewall rules & implement account security policy
0-5 years of experience
Responsible for monitoring, troubleshooting, and facilitating resolution of problems that arise in a 24×7 Openstack environment.
- Assist in RCA investigation and analysis for all customer facing incidents.
- Work on automating multiple processes for very common everyday tasks.
- Daily responsibilities include troubleshooting problems across a wide range of enterprise level software in a highly complex environment.
0-5 years of experience
Promoted to Linux Administrator – Internal Support
- Assist HostGator employees to resolve issues customers are having with their web hosting.
- Provide technical support for level I escalation issues.
- Troubleshoot, diagnose and resolve issues related to Linux, Apache, MySQL, PHP, Exim, FTP, DNS and other web hosting related technologies.
- Performs miscellaneous job-related duties as assigned.
0-5 years of experience
Experience administering, installing, configuring and maintenance of Linux.
- Experience installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
- Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in Solaris, CentOS and Redhat Linux.
- Configures DNS, NFS, FTP, remote access, and security management.
- Creates Linux Virtual Machines using VMware Virtual Center.
- Installs, upgrades and manages packages via RPM and YUM package management
- Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
- Installs, configures and supports Apache on Linux production servers.
- Manages Patches configuration, version control, service pack and reviews connectivity issues regarding security problem.
- Manages systems routine backup, scheduling jobs and enabling cron jobs.
- Administers VMware Infrastructure Client 3.5 and Vsphere 4.x. & 5.x
6-10 years of experience
- Comprehensive Linux and Solaris administration, including HBA / HP SAN issues.
- Scripting using Perl and KSH for process automation, monitoring, alerts, reports, and general efficiency increases.
- Remote Enterprise Linux installation, kernel tuning and Oracle 10g installation using VNC.
- Quickly learning and integrating new systems and products such as Oracle Enterprise Manager, Nagios, Solaris Management Center, and multiple Solaris and Linux VMware tools.
Linux Administrator Duties and Responsibilities
While the specific duties of a Linux administrator can vary based on their business and industry, the general responsibilities of this role are relatively consistent. Based on listings that we analyzed, these duties include:
Install and Configure Linux Systems
A Linux administrator’s main responsibility is to install and set up Linux systems and servers, often for organization-wide deployment. They develop servers and work with individual users to ensure that the system works reliably and quickly and answer questions related to setup and installation. In this role, Linux administrators also set up the architecture of the system, including back-end databases and scripts for specific applications and use cases.
Perform System Maintenance
Linux administrators also perform routine system maintenance and resolve server-side issues as they arise. This aspect of the role requires the Linux administrator to review error logs and reported errors and seek out solutions. Frequently, Linux administrators need to work directly with the system’s source code to make necessary changes to ensure reliable performance and then deploy those changes throughout the system.
Create System Backups
Linux administrators also conduct system backups according to company or industry standards. They may perform these backups weekly, daily, or more frequently depending on system space and business needs. This improves system recovery after a crash or other outage and supports data integrity by ensuring that there is never a massive loss of vital information.
Monitor System Performance
In addition to maintaining Linux systems and servers, Linux administrators also monitor system performance to prevent slowdowns and crashes. They may examine daily traffic logs and reports or receive direct reports from end users. If the Linux administrator notices potential issues or recurring problems within the system, they develop and deploy solutions so that the system remains usable for all personnel.
Provide Technical Support and Guidance
Linux administrators provide technical support and guidance to users and other administrators. In many cases, the Linux administrator works closely with other developers to answer technical questions or resolve issues with server-side performance. They may also support users by assisting with installation and maintenance of Linux-based programs and help debug these applications so that they work with existing servers.
Maintain System Security
Finally, Linux administrators maintain system security by actively identifying faults and vulnerable areas within the system’s architecture. This part of the job requires extensive knowledge of viruses and other sources of system vulnerability, and requires the Linux administrator to proactively develop protections, particularly when deploying system-wide changes that can open up new vulnerabilities.
Linux Administrator Skills and Qualifications
Linux administrators need technical expertise, specifically with the Linux operating system environment. Generally, companies hire candidates with a bachelor’s degree in a related field, at least two years in a server-side administrative role, and the following skills:
Server administration
– one of the most important qualifications for a Linux administrator is a background in Linux or UNIX server setup, deployment, and maintenance
Programming and coding
– a background in coding and writing programs is vital in this role. Linux administrators frequently need to work directly with a system’s source code and develop solutions to improve system-wide performance
Analytical skills
– Linux administrators need to be highly analytical and able to examine error logs, system performance data, and user information to ensure a high level of usability and reliability
Information security
– because they oversee system-wide security and performance, Linux administrators also need to be familiar with best practices and techniques to maintain and enhance information security
Communication skills
– Linux administrators frequently work directly with IT professionals and end-users, so effective communication skills are a necessity in this role
Problem-solving skills
– while installing, configuring, and maintaining Linux systems and servers, administrators often need to employ creative and technical problem-solving skills to resolve issues or devise a new solution
Linux Administrator Education and Training
While some companies may hire Linux administrators with an associate’s degree in a related field such as information systems, the vast majority of workers in this role possess a bachelor’s degree in a technical field such as computer science. However, there are also certificate programs through the Linux Foundation and CompTIA that focus specifically on Linux administration and may help job-seekers secure a position even without a degree. Most Linux administrators also have several years of experience working with server-side technologies, often under the supervision of a senior Linux administrator.
Linux Administrator Salary and Outlook
The Bureau of Labor Statistics (BLS) states that the median annual wage for network and computer system administrators is $79,700. This is slightly higher than salaries reported by Glassdoor and PayScale. Glassdoor estimates an average annual salary of $72,762; PayScale reports a median salary of $70,179 per year. The BLS expects employment for network and computer system administrators to grow 6 percent by 2026.
Helpful Resources
If you’re interested in learning more about working as a Linux administrator, we found many resources on the web for further information:
“7 Steps to Start Your Linux SysAdmin Career” the Linux Foundation provides many helpful tips and opportunities to practice working within the system and get involved with other professionals
Linux Administration: A Beginner’s Guide, Seventh Edition Wale Soyinka’s essential text provides all the information a Linux administrator needs to gain familiarity and expertise with Linux systems
Red Hat Certified System Administrator learn more about Red Hat certification, which can help advance Linux administrators’ careers and provide further training
Linux Administration: The Linux Operating System and Command Line Guide for Linux Administrators author Jason Cannon provides advanced technical guidance and resources for Linux administrators
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Last edited by: Gabriela Barcenas, CPRW, Content Writer II -
Gabriela Barcenas
CPRW, Content Writer IIGabriela is a Certified Professional Resume Writer (CPRW) and career adviser. With 10 years of digital media experience and five years of resume writing expertise, her publication history includes fashion, education, travel, social justice, equitable design and career advice.
