Linux System Administrator
Current• Installation/upgradation and troubleshooting of Red Hat Enterprise Linux/CentoS Operating System.• Monitoring of Disk space, Memory utilization, CPU Utilization, Process Utilization of Servers and Multipathing etc.• Installation & Configuration Apache 2.4.46 & Tomcat 9.0.46 server in Linux Server.• WAR files deployment for JAVA Application in Tomcat.• To check the OS, hardware, Apache and Tomcat logs as per the requirement.• Creation of Physical volumes, Volume group and Logical volumes, Extended the size of LVM, Reduce the size of LVM.• Users, Groups and Permission administration.• Installing and updating packages using RPM and YUM.• Automated Task Scheduling: crontab.• Archive, compress unpack, and uncompress files using tar, star, gzip, and bzip2.• Installation and configuration of Postgresql-10.• Taking Database Backup and restore it. • Troubleshooted network issues, identified bottlenecks, and optimized network configurations.• Installed and configured SAMBA server for windows and Linux connectivity.• Managed shared NFS files system.• Incident Management with the help of JIRA tools.• Creation and Management of VMs. Taking VMs Snapshot and Restoration of Servers using snapshot.• Configuration of Remote Access utilities, providing user access control on services like telnet, ftp and ssh. • Configure Key-based authentication for SSH.• Preparing monthly Uptime report, Call report, Incident reports, Utilization reports and Other documentation as per requirement. • Involved in setting up and maintaining virtualized environments, including virtual machines.• Experience creating and managing various file systems using NFS, SAMBA, CIFS, ext4, ext3, XFS.• Troubleshooting day to day File System related issues which includes housekeeping of OS Mount Points.• Log case and provide logs to different Vendors in case of any hardware failure.
