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Linux System Administrator Resume

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SUMMARY

  • Red Hat Enterprise Linux Professional with years’ hands - on experience in a Unix/Linux environment and expertise in different flavours including Red Hat, Centos, Ubuntu. Strong knowledge in OS installation, troubleshooting, security design, package management.

TECHNICAL SKILLS

  • RHEL 6 & 7, RAID Technology, Windows MS Office, VMWare, Ansible, LDAP, AWS, S3, EC2, Network Management, Linux Logical Volume Management, JIRA, Centos 6 & 7, Zabbix, Bash Shell Scripting,

PROFESSIONAL EXPERIENCE

Linux System Administrator

Confidential

Responsibilities:

  • Configured and installed RHEL 6&7 OS on VMs and physical servers.
  • Applied security patches to keep servers secure and compliant.
  • Installed and managed packages on RHEL 6&7 servers using yum and rpm
  • Set up and configured boot drives using RAID
  • Setup volumes to mount upon server reboot.
  • Re-kick Servers using ipmitool.
  • Reboot server operating systems to resolve certain issues such as ROF.
  • Troubleshoot Drive issues using “smartcltl” command to ascertain drive failure.
  • Created and added new physical volumes to already exiting volume groups.
  • Configured and enabled package repository locally on server.
  • Reviewed log files to troubleshoot and resolve system error.
  • Troubleshoot and fix TCP/IP network issues on user workstations
  • Granted sudo permission to users to perform certain tasks.
  • Worked with other administrators to improve and strategize system productivity.
  • Manage and access physical HP servers using ILO.
  • Stop and turn off all vulnerable services from starting on reboot.
  • Data migration across hosts using rsync and scp.
  • Scheduled jobs using crontab.
  • Maintain users account, groups and permission.
  • Extended and resized file systems using logical volume manager.
  • Set up and configured firewall rules using iptables and firewalld.
  • Start, stop services manually using “systemctl” command.

Linux Admin

Confidential

Responsibilities:

  • Perform standard administration tasks (patch management, OS install)
  • Resolved and tracked assigned tasks using Jira.
  • Monitored system activities like memory, CPU and disk usage to avoid any performance issues.
  • Experience with monitoring tools such as Zabbix.
  • Installed and configured RHEL 5&6 OS on physical and virtual servers.
  • Perform data migration across multiple Linux servers in the environment.
  • Create and manage user accounts thereby enforcing account policy (password rigidity, system security).
  • Perform disk and memory upgrade on server.
  • Assign file system utilities using the “umask”, “chown”, “chgrp”, “chmod” permissions.
  • Configured server to run in SElinux enforcing and permissive modes.
  • Experience in creating, cloning and deleting virtual machines in VMware.
  • Monitored and maintained disk space on server.
  • Manage and access physical Dell servers using iDRAC.
  • Provide guidance to support team when they have questions or need assistance on a project or task.
  • Manage several packages on rhel5 using “yum” and “rpm”.
  • Document server baseline and procedures.

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