SUMMARY:

• Over 5 years of experience in system administration working on RHEL 3/4/5/6, UNIXand Windows 2005 2010 Server Operating systems.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning Systems.
• Strong technical background in Storage, Disk Management, Logical Volume Management LVM , Solaris Volume Management and logical partitioning.
• Experience in virtualizing Operating System services using Linux RHEL 6.
• Worked on HTTP, UDP, FTP, TCP/IP, DHCP, DNS, NFS, NIS and ZFS.
• Installed, Configured and Administered ESX 3.5 and VMware V Sphere.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Proficient in configuring and KickStart servers to initiate installation ofRed Hat Linux on several machines at once.
• Experienced with attaching servers to Storage like EMC SAN Administration, NetApp, NAS Administration.
• Experience using diagnostic and debugging tools such as Top, OS tools, BMC Patrol, BMC BladeLogic automation suite, Legato networker client side , and HP Insight Manager.
• Experience in installation and configuration of Web Sphere, Apache, Web Logic, LDAP, and mail servers.
• Experience in writing Shell scripts using perl for process automation of databases, applications, backup and scheduling to reduce both human intervention and man hours.
• Experience in performing DBA tasks such as creating users, roles, tables, tablespaces, imports and exports for development of databases.
• Dedicated to excellent customer service. Self-direction, leadership and problem solving skills. Ability to prioritize and work proactively. Strong communication, documentation and teamwork skills.

TECHNICAL SKILLS:

Confidential

Unix/Linux Administrator

Responsibilities:

• Responsible for installation, configuration, and administration of Red Hat Linux version 5 and 6.
• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP blade system BL465c 8th generation, HP ProLiant DL385p 8th generation Integrity Itanium2 platforms on RHEL 4, 5 and 6.
• Expanded the environment from 128 to over 280 servers over the course of 12 months.
• Setup and maintained NFS, NIS, and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat hosts.
• Maintained network and data security, maintained security compliance policies on the OS for SOX and internal audits.
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Linux.
• Used RPM and YUM to update RHEL 6.
• Deployed Red Hat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Experience with Kickstart Installations on Linux Red hat and Ubuntu.
• Installed, maintained and fine-tuned the Apache-Tomcat server and Websphere Application Server in Linux Platform
• Created Bash shell scripts to monitor system resources and system maintenance.
• Wrote Perl scripts to generate statistics and monitor processes.
• Deployed MySQL clusters using Red Hat Cluster Suite for supporting internal applications built on the LAMP stack.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• Installed, configured upgraded Websphere and application level troubleshooting for the Dev, Test Production environment and maintained Load balancing.
• Worked with DBAs on installation of Oracle database.

Environment: RedHat Linux 5/4, Oracle 10g, HP Servers, SUN Servers, Linux, KickStart, Shell Script, Autosys, LDAP, EMC Storage SAN, VMware servers, Websphere.

Confidential

Unix/Linux Administrator

Responsibilities:

• Install Red hat enterprise Linux 5.4 on HP and IBM servers, creating partitions on the EVA 4400 using Linux volume Manager LVM to create disk space.
• Working with developers to load software onto Linux Enterprise servers and also debugging Scripts.
• Installed other useful related softwares such as OpenSSH, BMC Patrol Best1, IBM Tivoli Storage Manager.
• Administered security, users, disks, groups administration, File Sharing Permissions, daily backup and restore operations, networking service, performance, and resource monitoring.
• Installed and Administered VMware ESX 3.5 in multi-cluster environment with 8 physical nodes in each cluster.
• Installed and maintained several Linux and Windows servers on virtual environment.
• Used Veritas Volume Manager to create diskgroups, volumes, volume groups, and RAID's and Used Veritas Netbackup tool for backup and recovery.
• Used VERITAS Cluster Server VCS 5.5 to verify Failover/Pre-Failback/Failback in case of outage in the high environment.
• Network trouble shooting using ' 'netstat', 'ifconfig' and Worked closely with Vendors on Hardware Problems, software fixes.
• Administration of NFS, NIS, DNS, Samba and Send mail servers.
• Monitored system performance using sar, prof, vmstat, iostat, netstat, NagiosInstalled and configured RAID 0, RAID 1 and RAID 5. Created vmdisks and volumes using the volume manager according to the requirements.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linux servers

Environment: Linux 6/5/4, Oracle 10g, SUN Servers, SUN, Linux, Kick Start, Shell Script, Autosys, Veritas Volume Manager VVM , LDAP, EMC Storage SAN, Veritas Cluster Server VCS , VMware servers,Websphere.

Confidential

Unix/Linux Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 4/5, HP-UX 11i and IBM AIX operating systems.
• Configured and installed HP-UX and Redhat Linux Servers using kickstart and making installation configuration files.
• Implementing file sharing on the network by configuring NFS on the system to share essential resources.
• Worked on building and supporting on Sun Midrange platforms and IBM AIX Midrange platforms.
• Worked on performance tuning in Solaris, Linux HP-UX.
• Performed package and patching management and debugging in all flavors of UNIX Linux.
• Expertise in capacity planning and migrations in HP-UX.
• Troubleshooting and analysis of hardware and failures for various Solaris servers Core dump and log file analysis .
• Installation and configuration of Veritas Volume Manager VXVM , Veritas file system VFS . Implementation of RAID techniques and creation disk groups and volumes. Managing disks and file system using Veritas Volume Manager VxVM , HP Service Guard in HP-UX and Linux servers.
• Built high-end servers, creating and loading images on Solaris, HP-UX and Linux servers using SystemImager tool.
• Installed, configured and managed Oracle Real Application Cluster RAC in Solaris, HP-UX and Linux servers.
• Patches and Package administration for installation of patches as per company policy and installation of packaged application.
• Installed, configured and managed Redhat Cluster Suite in Linux servers.
• Worked on live upgrades in Solaris and HP-UX servers. Configured and managed Zeta byte File System ZFS in Solaris, HP-UX and Linux Servers.
• Performed configuration and troubleshooting of services like NFS, NIS, DHCP, FTP, LDAP, Web servers, Samba server, and Apache server.
• Planned and implemented migrations from lower end to higher end in OS level and Hardware level in HP-UX and Linux servers.
• Configured and managed Redhat satellite Network server, performing package management tasks and errata updates.
• RPM package administration using RPM Build.
• Performed Data Backup and Recovery using Veritas Net Backup VNB .
• Update the systems using Redhat Enterprise Network RHN ,Managing andmonitoring through RHN.
• Knowledge of DAS, NAS and SAN concepts and technology. Also got knowledge in HA, Clustering, LAN.
• Responsible for setting up a disaster recovery plan for the servers, which includes in development of programs for synchronized backups.
• Worked on installing and configuring VMware/Esx Servers for virtualizations.
• Configured and maintained Network Multi pathing in Linux.

Environment: Red hat Linux 4/5/6, HP-UX 11i, AIX, Sun Enterprise Servers E5500/E4500, HP 9000K, L, N class Server, HP Dell blade servers, IBM RS/6000, p Series servers, VMware ESX Server, Oracle.

Confidential

Linux Administrator

Responsibilities:

• Installation of Linux Operating system with necessary RPMs.
• Creation of VPN certificates and installing the same for users.
• Configured Samba file server to windows network.
• Installation of VMware client and creating different instances.
• Configured and managed Squid server using various acl's for Internet Access.
• Installation of Network printers under TCP/IP and troubleshooting.
• Handling and preparing documents related to ISO 9001-2000 audits.
• Maintained the inventory of all the switches, routers, WAF boxes.
• Implemented and configuring RAID Devices.
• Configured Open-ssh server for secure remote administration.
• Set up a basic IP failover..
• Implemented automated Backup using Backup PC.

Environment: Nagios, Backup PC, ESXi Server, DHCP Server, Open VPN server, Clone Zilla.

Confidential

System Administrator

Responsibilities:

• Maintenance and support of network and systems for users.
• Maintenance and troubleshooting of Desktops, Laptops and Printers.
• Ensured that systems are updated with latest patches and virus definitions.
• Built up the networks for the newly received processes.
• Maintenance of Antivirus Management with McAfee Virus Scan Enterprise, Symantec.
• Installation and Maintenance of CDMA USB Data modem in laptops.
• Installation of new packages, services packs and upgrades of software, OS.
• Installation of all kinds of Company software and operating systems.
• Maintenance of coral reports and handling new setup per process.
• Documented backup process and have ensured that the process is followed.
• Initiated network enhancements that reduced network downtime.

Environment: Windows 2003 server, Squid, EPABX, Cisco 2500 switch.