SUMMARY:

• Over 4 years of IT industry experience as a System Administrator under environment of Red Hat Enterprise Linux/Centos 5.x/6.x,Ubuntu 11.x/12.x and Windows 2003/2008 Server .
• Administration and troubleshooting Specialties Network Design and implementation.
• Planning, Installation, Configuration, Maintenance and Administration of Centos 5.x/6.x, Ubantu 11.x/12.x and Windows 2003/2008 Server day to day system admin tasks.
• Experience working on IBM Hardware xSeries (x3100, x3650, x3550) Servers.
• Installation & update Patches, Security fixes packages for Linux And Windows machines.
• Writing bash shell Startup Shutdown, Backup Scripts and updating them in teh Scheduler / CRON,
• Setup & troubleshoot Kick start and Jumpstart Installation Methods
• Installed, Configured and Support Web Application Server, Apache 2.x, ApacheTomcat 6.x/7.x in Linux environments.
• Knowledge of Samba Servers
• Configure, Manage & Troubleshoot loadblancer and Clustering for production Environmet.
• Worked extensively on creating volumes using different RAID levels and LVM as well..
• Configure, monitor and troubleshoot various file systems like Ext 4, Ext 3, and NFS.
• Use ILO/HMC tools for Server managment.
• Worked extensively on Red Hat Linux DNS servers from installing BIND package, updating teh BIND database and troubleshooting teh problems.
• Install And update packages in Red Hat Linux servers using RPM’s and YUM Repositories.
• Install Configure Active Directory Server on windows 2003/2008 server.
• Configure & Takecare of VMWARE Zimbra open source Mail Server and Open EMM Mass mail server
• Knowledge of networking protocols FTP, SFTP, NFS, NIS, DNS, DHCP, SUDO, HTTP, IMAP, POP3, SMTP, SSH, TELNET, VPN & IPSec, TLS/SSL, TCP/IP, IP (IPv4).
• Administered of Created groups/user accounts, set teh permissions of files/folders and use of ACL etc.
• Administered of updates kernel & kernel patches.
• Basic Knowledge of MySQL Database, Upgrade & install rpm packages
• Configuring & maintaining teh Transparent Squid proxy server.
• Configuring & maintaining teh Postfix / SMTP mail server.
• Average Communication Skills, Excellent match for time critical Requirements.

PROFESSIONAL EXPERIENCE:

Confidential

Linux Administrator

Environment: Centos 6 As Server, ubantu & windows as Client, Zimbra open Source mail server, Raid - 5 Storage, Samba Server, tomcat web server, apche loadblancer, Sonic firewall, Open EMM Mass mail Server

Responsibilities:

• Installed, Configured and maintained Red Hat Linux Centos, Windows Servers
• Responsible of Create groups/user accounts, set teh permissions for files/folders and use of ACL etc
• Responsible, configure, Monitor & trouble shoot For Zimbra open Source Mass mail server.
• Install and Configure Open EMM Mass mail server Related task.
• Use of LVM & Extend, reduce teh size of Volumes,
• Configure & manage Software Raid for data Storage Server using kick start based network installation.
• Performed troubleshooting of CPU bottle necks, memory bottle necks and Analyzed performance improvements.
• Write bash shell scripts for backups and updating them in teh Scheduler / CRON.
• Installation configure & troubleshoot Apache 2.x Apache Tomcat 6.x/7.x in Linux environments
• Configure & Manage load balacer for production environment.
• Use ILO/HMC tools for Server management.
• Implementation of Samba, FTP, SVN for file sharing in teh mixed Environment.
• Performed OS upgrades and Patch's loading as when required and Use of RPM’s and YUM Repositories.
• Perfomed Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Network connectivity troubleshooting, ping, tracert, netstat, telnet.
• Configuration of DNS, DHCP, NFS servers, Configure & Manag VOIP Vonage Phones..
• Responsible for Design, Setup, Diagnose and Maintenance of Networking, LAN/WAN infrastructure.
• Monitored overall system performance, performed user management, system updates and disk & storage management
• Responsible for Sonic wall Firewall policies (Routing,CFS,NAT, Failover & LB Services)
• Basic Knowledge of MySQL Database.
• Knowledge of system connect hardware troubleshootings as well

Confidential .

System Administrator

Environment: CENTOS 5/6, Windows 2003/2008 Server, NFS, Samba, DNS, DHCP, Apache, Squid Firewall, SVN, LTSP Server

Responsibilities:

• Managing Linux/windows Infrastructure involves day-to-day maintenance of servers and troubleshooting.
• Working with LVM and creating of volume groups and performed Linux Kernel Tuning.
• Responsible to design, implement, Troubleshoot DNS, DHCP, NFS, and FTP Services.
• Responsible to installing OS and other application software
• Worked on Web servers which include Apache Server 2.x/1.x. Tomcat 6.x/7
• Responsible of Created groups/user accounts, Quota set teh permissions for files/folders and use of ACL etc
• Schooling work on LDAP server.
• Configuring & maintaining teh Squid proxy, Server on Linux
• Scheduling teh Jobs using CRON tab. Expertise in Linux backup/restore with tar format.
• Installed/ upgraded patches, firmware & OS in installed infrastructure
• Configuring & maintaining teh SVN server. LTSP Server
• Basic knowlwdege of MySQL Sybase databases.
• Installing and Configuration VOIP Phone
• Installation & configure Active Directory for windows Server & DNS DHCP Servers as well
• Performed systems monitoring, upgrades, performance tuning and backup recovery.
• Experienced communicating with on site and off shore teams on daily basis.
• Responsible for installing and configuring Outlook and other application.
• Responsible for monitoring, troubleshooting, configuring, and deploying LAN/WAN solutions

Confidential

System Support Administrator

Environment: CENTOS 5/6, Windows 2003/2008 Server, Samba, DNS, DHCP, Apache, LTSP Server, Postfix mail server

Responsibilities:

• Responsibilities of Environment: RHEL5.5/5.8/6, Windows2003 Ser ver,
• Installation, administration, configuration of RHEL 5/6 including package management, patch management, regular system administration tasks.
• Installing, Configuring, Troubleshoot Linux Servers locally & remotely.
• Apache server Configuration with Mysql database.
• Participated kernel upgrading environment.
• Configure & manage Postfix mail server
• Creating logical volumes, extending teh file systems using both LVM,
• Worked and performed Rack mount Server, cabling.
• Responsible for change management, troubleshooting and resolution of server issues for end users support.
• Installing and configuring DNS, DHCP, NFS, LTSP, Squid proxy and FTP services.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Troubleshoot teh VOIP PHONE & Manage EPBAX Server.
• Responsible for managing Windows servers AD, DNS, DHCP, and other.
• Responsible to create and manage group policy to manage user, update, backup and other administration task.
• Responsible for Design, Setup of Networking, LAN/WAN infrastructure

Confidential

Windows System Administrator

Responsibilities:

• Installing, Configuring, Troubleshooting windows, Machines.
• Maintaining Users & Groups Hierarchy, File Management
• Configuration, maintenance and troubleshooting of teh network and terminals over lan environment .
• Responsible for all types of hardware & networking Problems
• Supported server, tape backup and recovery planning.
• Set Schedule Backup and recovery of data.
• Designing and Implementation of LAN.
• Administrating of IIS/AD server.
• Computer Assembling, Hardware Trouble Shooting and Networking