SUMMARY

• Over 7+ experience as Linux/UNIX system administrator on Red Hat EL 4.x, 5.x, 6.x, Debian, CentOS 4.x, 5x, FreeBSD, Solaris 8,9, 10 and Vmware ESX environment.
• Extensive experience with RAID using Volume Management Software like Logical Volume Manager, Veritas Volume Manager, Solaris Volume Manager.
• Experienced in Installation of Operating Systems, Packages and Patches, adding peripherals, maintaining user accounts, System Security maintenance, backup/recovery, performance tuning, troubleshooting at various levels etc.
• Extensive experience with Kickstart in Redhat Linux, Jumpstart in Solaris, Ignite in HP - UX .
• Expertise in implementation and maintenance of NFS, NIS, DNS, LDAP name services.
• Excellent knowledge of clustering techniques to ensure high availability and GFS deployment.
• Hands-on experience in writing BASH Shell scripts.
• Experienced in implementing and administering VMs using VMware ESX 3.1 and vSphere 4.x and vCenter and building KVM Hypervisor. Also worked with Solaris 10 zones to implement virtualized environments in teh Solaris environment.
• Security management like performing security health checks as per policies / procedures, patching teh servers based on teh advisories for teh applications and operating systems.
• Hands-on experience with Veritas Cluster Server and Veritas NetBackup.
• Experience in networking concepts like DHCP, TCP/IP, IP Addressing, Networking Technologies and WLAN.
• Experience in deploying Apache Tomcat applications with Puppet.
• Experience in installation and configuration of Apache 1.3.x, Tomcat, WebLogic 9, 10, and JBoss.
• Hands-on experience in diagnosing, troubleshooting various networking, hardware & Linux/ UNIX server’s services issues and performing preventive maintenance.
• Experienced in writing / modifying shell scripts for process automation of systems, applications, backups etc.
• A quick learner with excellent problem-solving and interpersonal skills.
• Self motivated, goal-oriented, good team player, and highly adaptive to changes.
• Self starter, self motivator and quick learner. Excellent interpersonal communication skills. Strong problem solving skills. Ability to work in a team or on an individual basis.
• Open for relocation.

TECHNICAL SKILLS

Operating Systems: Linux (RHEL, Debian, CentOS), FreeBSD, VMWARE ESX, Open Solaris, MS Windows server.

Protocols and Services: TCP/IP, TELNET, FTP, SSH, SCP, ARP, DHCP, SMTP, TFTP, NFS, DNS, NIS, Network Essentials-OSI, LAN/WAN, Switches, Hubs, Fiber Channel and iSCSI.

Automation/Scripting: Kick start (Linux), Jumpstart (Solaris), Bash / Korn / Bourne

Software: Red Hat Cluster Suite, Veritas cluster server 3.x, 4.x, 5.x, 6.x, Veritas volume manager 3.5, 4.x, 5.x,, Veritas File system, Veritas Cluster File system, Veritas netback up), VMware ESX 3.5, vSphere 4.0, Puppet, Websphere MQ, QPasa monitoring tool, DemonAgent automation, Filezilla, NFX client

Databases & Languages: Oracle 8i, 9i,10g,11g, MySQL, SQL Server, PL/SQL, C, C++, JavaScript

PROFESSIONAL EXPERIENCE:

Confidential, Nashville, TN

Linux System Administrator

Responsibilities:

• Design and run teh migration project of multiple batch applications platform from Solaris to Linux shared batch servers.
• Support application teams in teh migration process and guide them throughout teh whole process of getting NAS storage, mount them, create load balancer, create filesystems and user accounts.
• Support application teams with Autosys job changes and deployment tasks.
• Assist in hardware evaluation, infrastructure builds, integration and deployment of new software and databases as requested by application teams.
• Configure file system protocols like SFTP and FTP as requested by application teams.
• Design and involve in migration of Mainframe trigger jobs from Autosys servers to new batch servers.
• Monitor and maintain teh NIS, DNS and NFS servers.
• Write bash and ksh shell scripts to automate teh processes.
• Perform Kickstart and Jumpstart automatic installation on Linux and Unix servers.
• Perform tasks related to managing Disk Storage using Veritas Volume Manager and LVM commands to create, grow, and/or mirror new volumes and file systems.
• Install and configure SAMBA server for Windows and Linux connectivity.
• Monitor system processes, CPU loads, Memory usage, disk space and daily logs and resolve teh issues in case.
• Administer and provide daily support, backup and recovery, data storage, system access and security, etc.
• Deploy applications with Automation and Configuration management tool Puppet.
• Involve in migration of Websphere MQ applications from distributed to mainframe platform and also support shared infra MQ platform.
• Install Websphere MQ software, create Queue Managers and Queues and configure them.
• Install QPasa monitoring software on servers and DemonAgent to automate teh process of compliance reporting for audit purpose.
• Maintain day to day activities on SFTP server platform and worked on remediation of POODLE vulnerability in SSLv3 connections.
• Security management like performing security health checks as per policies/procedures, patching teh servers for teh applications and operating systems.

Environment: Red Hat Enterprise Linux 6.x, Sun Solaris 10, Puppet, Confidential Websphere MQ, QPasa monitoring tool, Oracle 11g, JIRA, Filezilla, NFX client

Confidential, Fort Worth, Texas

Linux System Administrator

Responsibilities:

• Building Physical as well as Virtual (VMware) Servers.
• Mass Build of Linux/Solaris OS servers using kickstart /jumpstart automation application.
• Installation of Oracle 11g and Sybase open-client, Apache 2.x on Linux environment.
• Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 3.5 and Vsphere 4.0.
• Worked extensively with Network File System (NFS) for storage.
• Creating logical volumes, extending teh filesystems using LVM.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Patch Management, Package Installation/Upgrades and Kernel upgrades
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Software package and patch administration, involving adding and removing software packages and updating patches
• Work with server automation and configuration management tool Puppet.
• Handling problems or requirements as per teh ticket (Request Tracker) created.
• Configuration and administration of LDAP, NFS and NIS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments.
• Writing shell scripts for Automated Back- ups and Cron Jobs.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned me/O, memory, etc.
• Maintained proper documentation of all teh activities carried out during teh project.

Environment: Red Hat Enterprise Linux 4.x,5.x, Sun Solaris 8,9,10, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11g, HP UX, MS Windows Server.

Confidential, IA

Linux Administrator

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Responsible for Building of Linux/Solaris OS servers using kickstart /jumpstart automation application.
• Documented teh standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Installation, configuration, support and security implementation on following services:DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Worked with monitoring tools as Nagios and HP Openview.
• Creation of VMs, cloning and migrations of teh VMs on VMware vSphere 4.0 and building KVM Hypervisors also Worked in clustering techniques to ensure high availability and GFS deployment.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in teh fly in Solaris boxes.
• Managed and upgraded UNIX’s server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Supported teh backup environments running VERITAS Net Backup 6.5.
• Responsible for setting cron jobs on teh servers.
• Decommissioning of teh old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per teh ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports.

Environment: Red Hat Enterprise Linux 4.x, 5.x, 6.x, Sun Solaris 8, 9, 10, VERITAS Volume Manager, Oracle 11g, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential, Tampa, Florida

Unix/Linux Administrator

Responsibilities:

• Installation and Configuration of Redhat ES, CentOS, Solaris 8, 9, 10, SLES 9, 10 servers.
• Installation, configuration and management of Apache and Tomcat servers.
• Performing Nessus Scan on quarterly basis to scan for vulnerabilities in Web and Application servers.
• Applying patches to fix teh holes dat are found during teh quarterly scan basis using Nessus scan.
• Upgraded and maintained servers, operating Systems and patches.
• Install/configure/maintain teh Linux /Solaris servers, NIS, DNS, NFS, Mailing List, Sendmail, apache, ftp, sshd.
• Managed NetaPP FAS 920 Storage and implemented RAID.
• Configuring and managing Novell HA cluster in SLES 10.
• Configuring and optimizing open-iSCSI in RHES for SAN using iOmega technology.
• Install host firewall IPTables for Redhat Linux.
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Performed TCP/IP, DNS and DHCP administration.
• Setting up Oracle 10g server in Linux/Unix environment.
• Supported Oracle DBA in teh implementation of Oracle 9i RAC.
• Installed and monitored administering and monitoring tools such as Webmin and Nagios.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• Performed routine LVM tasks like replacing failed drives, adding new volume groups, extending volume groups/LVM/file system, exporting and importing volume group for hardware migration.
• Administered Backup and Restore operations using Veritas NetBackup 5.1.
• Monitored and fine tuning system and network performance for server environments running Redhat Linux, Solaris.
• Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc.

Environment: Red Hat Enterprise Linux 4.x,5.x, CentOS, Debian, Cisco, Veritas Cluster Server, Oracle 9i, MS Windows 98/2000/NT/XP, Oracle RAC/ASM, Porta-one soft switch, MS Windows Server 2003, 2008.