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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