Linux Specialist
Current Installation, configuration and OS patches on Linux based OS such as RHEL, CentOS, Ubuntu SUSE. Administered VMware vSphere clustering and Xen Center on all environments. Creating physical volume, Volume groups, logical volume and extending them using LVM. Worked with Cloud, Network and DBA team for network related, permissions, mount points, space related issues. Creating, troubleshooting and mounting/automounting NFS file systems on different OS platforms. Managing and installation of software packages using YUM and RPM. Installation and configuration of Chrony/NTP servers. Full OS patching activity with latest patches excluding requested packages. Subscription management on RHEL and SUSE servers. User and group creation, deletion and it's management as per requirement. Data copy and synchronization using rSync utility. Creating files/directories backup using tar, gzip tools. Scheduling jobs like enabling and disabling cron jobs. Logs management using rsyslog along with log rotation. Mount/Unmount external USB HDD using NTFS Monitoring, analyzing resource utilization and system performance using top, vmstat and Sar tools. Creating POA for patching/upgrade activity for Linux OS Responsible for installation and configuration services such as HTTP, FTP, SSH, DNS, NFS, NTP/Chrony, Telnet, SMTP, POP3 and MySQL. RCA for incidents like server power off or reboot due to excessive resource utilization. Experience in handling different activities Linux full OS patching activity Linux OS upgrade activity DR Drills activity for all Linux VMs. Linux OS security and hardening activity along with vulnerability assessments cPanel Server Migration Activity Linux OS DC Migration Activity