Linux administrator Resume
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OBJECTIVE:
To pursue an interesting and challenging career in Confidential Administrator and Communication Technologies with establishing and maintaining higher levels of end user satisfaction in the organization.
PROFESSIONAL SUMMARY:
- Overall 3.3 years of experience in Confidential Administration.
- Working experience in 24/7 environments.
- Involving with Incident Management team while troubleshooting the server down issues.
- Managing File system and Swap space.
- Worked on different environments like User Access Testing, Development and Production.
- Interacting with APPLICATION team & DATABASE team as per the requirement.
- Configuring of NFS, Auto Mounts.
- Experience in resolving Server down i ssues.
- Working on weekend activities like Disk replacements.
- Monitors system performance and takes proactive action when pre - defined thresholds are exceeded. Performance, maintenance, troubleshooting and problem isolation.
- Interacting with different vendors and raising a support cases as per the requirements.
- Good Analytical and Problem Solving Skills, Talented team player, quick in learning and adapting to new situations, configurations and technologies.
- Knowledge on Windows,ExchangeServers,Activedirectory,Office365,Azure,AWS,wordpress.
- Experience on Veeam backup tool & Hyper-V
TECHNICAL SKILLS:
Operating System: Red Hat Confidential 5 & 6 &Centos 7
Ticketing Tool: BMC Remedy
Network Services: NFS, Auto FS, SAMBA.
Volume Management: LVM
PROFESSIONAL EXPERIENCE:
Confidential
Linux Administrator
Responsibilities:
- Installing and Administering Confidential servers in 24x7 environments.
- User management, Creating and managing user account, groups and access levels.
- Implementing Quotas on users and groups.
- Package management, adding & deleting the packages and patches according to the requirement.
- Applicability checking like APARS. Checking kernel version from server side and RedHat site.
- Patch Management, Upgrading patch as per the client requirement.
- Disk management, creating File system and troubleshooting on disk issues like filesystem full and usage of filesystem.
- LVM management - Creating, extending, removing the LV’s and VG’s etc.
- Trouble shooting while LVM corrupted.
- After adding lun from storage side, scanning new lun and bringing into LVM and increasing the volume group as per the requirements.
- Monitoring System Resources like CPU utilization, Virtual memory and SWAP utilization.
- Clearing the cached memory files.
- Increase the Swap Space online as per client requirement.
- Scheduling jobs and managing using crontab automation tool.
- Implementing security on users, groups and others on specified files and directories through ACL.
- Applying Setuid, Setgid and sticky bit on files.
- Scheduling the jobs using Crontab and AT jobs
- Providing sudo privileges to the user
- Check the port status at server level.
- Managing backups by using tar, restore and rsync.
- Configuration of FTP and remote applications like SSH, scp, telnet. Resolving the user login issues.
- Configuring and troubleshooting of NFS, Auto mounts.
- Copying files and directories from one host to another host using SCP and rsync.
- Change Management and schedule the plan if any activity or task.
- Handling Server Down issues and raising case with vendor(REDHAT).
- Sharing files from Confidential server to windows server using Samba server.
- Installing and configuring nagios monitoring tool on client servers, to monitor DISK, SWAP, RAM, Load average, CPU utilization. Copying plugins from nagios server to client servers and adding host ip’s in server.
- Installing and configuring SNMP hardware monitoring tool on client servers, to monitor hardware related issues.
- Knowledge on APACHE webserver.
- Installing and Configuring Kdump Package.
- Installing and Configuration of (SMTP)Mail servers like iRedMail,CWP,SOGo,Zimbra .
