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Unix/linux System Administrator Resume

SUMMARY:

UNIX/Linux System Administrator with over 6 years of experience in a multiplatform environment with hands - on experience in the administration and management of Solaris 10 operating systems and Red Hat Enterprise Linux 6 & 7, Centos 6 & 7(Red Hat Certified System Administrator)

TECHNICAL SKILLS:

  • Red Hat Enterprise Linux v6&7
  • CentOS v6&7, Solaris v10
  • Kernel Patching with Red Hat Satellite
  • Oracle virtual machine OVM
  • Active directory, group policy, LDAP,
  • Red Hat Identity management server
  • Virtual Image template, and snapshots
  • SSH Keys - public and private - for secure connections, Public Key Infrastructure PKI.
  • File management
  • User management
  • Scripts
  • Sudoers configuration
  • Selinux troubleshooting
  • HTTP Apache server
  • TCP/IP
  • Kickstart
  • NFS
  • Samba
  • NTP
  • Periodic password kickstart

PROFESSIONAL EXPERIENCE:

Confidential

UNIX/LINUX System Administrator

Responsibilities:

  • Build, Install, configure virtual and physical servers, test, deploy Solaris 10, RHEL 6&7, CentOS 6&7 servers to the network: OS installation and configuration- standard and advanced (jumpstart and kickstart).
  • Harden, Patch (Solaris 10 Servers using 10-Recommended patches), and upgrades (release), on standalone servers (using single user mode), and on production servers (live upgrade).
  • Monitor and log management on UNIX/Linux and servers, including processes, crash and swap management, with password recovery and performance tuning.
  • User and security management.
  • Setup, configure and troubleshoot TCP/IP, DHCP, DNS; NFS, and samba servers in a multiplatform LAN.
  • Shell script (bash) to schedule and automate processes including full and incremental backups using tar, and ufsdump.
  • Install, configure and host httpd apache webserver .
  • Perform multiplatform volume management using ZFS, LVM; install and configure a LAN wide NAS (Free NAS) used for creating LUNs and attaching to Linux servers
  • Virtualization (VMware ESXI ; Websphere, Vcenter, Vmotion ;).
  • Connect to Single Sign On LDAP server and configure Auto-mount.
  • Support system users and troubleshooting system issues. Document solutions for future reference.
  • Install and maintain the operating system and related software products.
  • Participate in root-cause analysis of recurring issues, system backup and security setup, Provide 24X7 support in Production Testing
  • Red hat Satellite
  • Install and configure packages and patches on Linux
  • Install and configure Ansible (ad-hoc, playbook)

Confidential

Linux systems Adminstrator

Responsibilities:

  • Monitored and Managed Server performance using associated tools.
  • Installed, configured and managed VMware infrastructure (ESXI)
  • Participated in root-cause analysis of recurring issues, system backup and security setup, Provide 24X7
  • Worked as part of a team and provide 7x24 support when required.
  • Installed and Configure Apache HTTPD
  • Performed regular system backup & recovery.
  • Monitored submitted tickets; assign and communicate, as required.
  • Archived, compress, unpack and uncompressed files using tar, gzip and bzip2.
  • Changed passwords and adjust password aging for Local user accounts, set enforcing and permissive modes for SElinux, creation and management of ACL.
  • Performed package management using pkgadd, pkgutil in solaris and using rpm, yum in Linux.

Confidential

Unix/Linux Systems Administrator

Responsibilities:

  • Troubleshot and resolved TCP/IP networking issues.
  • Installed, configured and managed VMware infrastructure (ESXI).
  • Performed user accounts administration.
  • Managed Password aging configuration on servers.
  • Maintained file systems and host security.
  • Resolved customer issues through troubleshooting.
  • Installed and Administered patches and updates to help improve performance
  • Monitored and Managed Server performance using associated tools.
  • Setup, configure and troubleshoot TCP/IP, DHCP, DNS; NFS, CIFS.
  • Performed logs administration to detect and resolve system errors.

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