PROFESSIONAL SUMMARY:

Around 8 years of experience in System Administration/Application Support administration and networking. Experience in installing and maintaining the operating systems and configuring networks in Centos, OEL, Redhat, Solaris, SUSE, Ubuntu as well as Windows NT/2003/XP/2008/7/2012 based environments connected to SAN Storage and Network Environments.

• Excellent communication skills and extensive documentation experience clear understanding of business and ability to work as a part of team.
• Specialist in automation writing Shell and Perl scripts to monitor UNIX production applications.
• Shell scripting ability solving it can't be scripted challenges seems to be my talent .
• Great ability to work with people to solve technical and business issues.
• Experienced in UNIX, MAC and PC hardware, software and networked environments.
• Experience in automation using Python, Ruby, Shell and Perl scripting and also experience in using automation tools like Puppet and Chef.
• Experience in supporting 250 Amazon AWS Images running Redhat, Ubuntu and Windows.
• Implementing and Maintaining Apache web server with HTTPS and Ngnix.

TECHNICAL SUMMARY:

PROFESSIONAL WORK EXPERIENCE:

Confidential

Systems Administrator

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 3/4/5/6, Cent OS 5.7 Solaris 9/10/11 operating systems.
• Remote monitoring and management of server hardware and also servers in Amazon AWS.
• Involved in developing custom images on Cloud using AWS images and on VMWare ESX using Templates and involved in building physical servers using Kickstart PXE Boot and Jumpstart.
• Involved in health check of servers after patching / rebooting and checked all the services of Linux and Windows servers on AWS Cloud and also physical servers.
• Experience installing Puppet agents and pushing Manifests/Modules to 500 Puppet clients.
• Experience working on AWS Cloud Images and involved in supporting AWS VPC environment.
• Installation and administration of DNS, NIS DHCP servers on Windows 2008/2012 and Linux 5/6.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Worked on Firewall implementation Load balancer between various Linux and Solaris servers.
• Associated with DBAs for installation of Oracle database on Linux servers for tuning, backup and restore.
• Scheduling the jobs by creating crontabs /Crontabs on Linux and Windows Servers.
• Responsible for providing technical support and providing production support for internally developed application.
• Responsible for monitoring and working on problem tickets. Following it up with business and technical teams, and ensuring the problem is successfully resolved.
• Responsible for documenting the issue, cause and resolution.
• Perform operational tasks and activities e.g. monitoring log files, performance tuning and migration between environments.
• Monitor the performance and availability of key middleware components in production and test environments.
• Have been the on-call person for the application, worked with the appropriate team members to bring the issue and get a resolution.
• Worked on customer tickets which are related to our application and help application team for the configuration changes and the file drops on the different servers.
• Configured IIS on Windows 2008 Servers and Apache on Linux Solaris environment.
• Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
• Ability to write Shell Perl scripting.
• Troubleshooting and configuration of Local and Network based printers.
• User, Group Administration and Advanced File Permissions.
• Worked on Log Parser and parsed logs based on the requirements of the App team.
• Maintain security for the networked environment while allowing users to access all data and software remotely.
• Worked on JIRA, Adding users to JIRA, Implementing the password policy to JIRA users.
• Involved in supporting Apache, Apache Tomcat and generated SSL keys for renewing SSL certs on web servers.
• Involved in developing custom scripts using Python, Perl Shell bash, ksh to automate jobs.

Environment: RHEL 6.x/5.x, Cent OS 5.7, Solaris 9/10/11, Apache 1.2/1.3/2.x, Logical Veritas Volume Manager, Veritas netbackup 5.x/6.0,VM ESX 4.x/3.x.

Confidential

Sr Solaris/Linux Administrator

• Installing and upgrading OE Redhat Linux and Solaris 8/9/10 x86 SPARC on Servers like HP DL 380 G3, 4 and 5 Dell Power Edge servers.
• Experience in LDOM's and Creating sparse root and whole root zones and administered the zones for Web, Application and Database servers and worked on SMF on Solaris 10.
• Experience working in AWS Cloud Environment like EC2 EBS.
• Implemented and administered VMware ESX 3.5, 4.x for running the Windows, Centos, SUSE and Redhat Linux Servers on development and test servers.
• Experience working EMC SAN Storage arrays like EMC Clariion and configured RAID groups and created LUN's on them.
• Involved in Day to day to activities on Solaris, Linux and also performed upgrades and migrations using different third party tools like rsync Double take.
• Installed and configured Apache on Linux and Solaris and configured Vitrual hosts and applifed SSL certificates.
• Implemented Jumpstart on Solaris and Kickstart for redhat environments.
• Experience working with HP LVM and Redhat LVM.
• Experience in implementing P2P and P2V migrations.
• Involved in Installing and configuring Centos SUSE 11 12 servers on HP x86 servers.
• Implemented HA using Redhat Cluster and VERITAS Cluster Server 5.0 for WebLogic agent.
• Managing DNS, NIS servers and troubleshooting the servers.
• Worked with VERITAS Foundation Suite 5 and performed tasks like creating disk groups, volumes, initializing disks, replacing failed disks etc.
• Troubleshooting application issues on Apache web servers and also database servers running on Linux and Solaris.
• Experience in migrating Oracle, MYSQL data using Double take products.
• Used Sun Volume Manager for Solaris and LVM on Linux Solaris to create volumes with layouts like RAID 1, 5, 10, 51.
• Experience in migrations of Solaris and Linux servers from EMC DMX to VMAX arrays using Veritas and SVM.
• Re-compiling Linux kernel to remove services and applications that are not required.
• Performed performance analysis using tools like prstat, mpstat, iostat, sar, vmstat, truss, Dtrace.
• Experience working on LDAP user accounts and configuring ldap on client machines.
• Upgraded Clear-Case from 4.2 to 6.x running on Linux Centos Redhat
• Performed security analysis using tools like JASS, nmap, nessus, snort.
• Patching of OS on mirrored servers after detaching and re-attaching the sub-mirrors.
• Implemented the monitoring tools like Nagios 3.0 to monitor services like CPU, Hard Drive, Memory, Users, http, ssh etc.
• Experience managing multipathing using Linux and Solaris Native and also EMC Powerpath on SAN devices.
• Experience supporting middle ware servers running Apache, Tomcat and Java applications.
• Worked on day to day administration tasks and resolve tickets using Remedy.
• Used HP Service center and change management system for ticketing.
• Troubleshooting and performance tuning issues with applications like Oracle 10g, MySQL, JBoss 4.x, WebLogic 10, MQSeries 6.x Java Applications on operating systems which included Solaris and RHEL.
• Worked on the administration of the Web Logic 9, JBoss 4.2.2 servers including installation and deployments.
• Worked on F5 load balancers to load balance and reverse proxy WebLogic Servers.
• Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers.

Environment: Solaris 8,9,10 11, HPUX, Centos, SUSE 10, 11, RHEL 3, 4.x, 5, VERITAS Storage Foundation 5, Redhat Cluster, VERITAS Cluster Server 4.1, VMware ESX 3.x, HP PA-RISC, HP ITANIUM servers, HP DL 380 G5, Sun Storedge 3511

Solaris/Linux Systems Administrator

• Installation of Solaris 8, 9 based servers with Jumpstart and Centos, Redhat Linux EL 4.x based servers using Kickstart in development, test and production environments.
• Implemented and administered VM Ware ESX 3.5 and 4.1.
• Performed project coordination function for evaluation, installation, monitoring, and maintenance of server software on variety of hardware platforms.
• Installed/ upgraded patches, firmware OBP , and security Kernel patches for all applications in installed infrastructure.
• Proactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cron jobs.
• Upgraded over 35 servers with VERITAS Volume Manager from 3.x to 4.0.
• Responsible for user administration and management using SUDO and RBAC
• Built new systems for Production and migrated from Solaris 8 to 9.
• Maintained Volumes and File systems using VxVM / VxFS for Oracle, DB2, Sybase MySQL databases.
• Used VxVM to add disk, create new disk groups/volumes, resize, deport and import disk groups between servers.
• Supported server running dataware housing application and terradata database.
• Experience with running SQL queries on Oracle and MySQL.
• Used VERITAS Cluster Server 4.1 to create high available environments for NFS, WebLogic and Sendmail agents.
• Managed and supported LDAP environment running on Unix OS.
• Worked with Solaris Security Kit 4.1 formerly known as JASS to harden the Solaris servers and removing unnecessary processes on both the operating systems.
• Performed systems monitoring, upgrades, performance tuning and backup and recovery.
• Implementation of naming services like DNS with Bind 8.4.x and NIS.
• Troubleshooting and fixing the problems related to systems, software and day to day regular maintenance tasks of the system.
• Respond to emergency calls relating to server performance, diagnosis of problems, repairing problems or calling upon appropriate vendors to resolve the issue.
• Responsible for quality reviews and standards.
• Provided 24x7 on-call / Remote Support for UNIX Production Problems on weekly rotation basis.
• Troubleshooting day-to-day server related issues and problems.

Environment: Solaris 8,9, Centos, Redhat Linux AS 2.1, 3, HPUX 11.0,11.11, Sun v245, E220, 420, 280R, v480, 490, 880, 890, 250, Netra T1/ X1, HP OV, TSM, VERITAS Volume Manager 3.x/ 4.x, Guardium, Best1, BindView, SysEdge, Tripwire, ITA, NIS, NFS, DNS, DAS/SAN/NAS, WebLogic, Webmethod, Apache, Perl.

Linux / Solaris Systems Administrator

• Installing, configuring and updating Solaris 7, 8, Red Hat 7.x, 8, 9, Windows NT/2000 Systems using media and Jumpstart and Kickstart.
• Creating System Disk Partition, mirroring root disk drive, configuring device groups in UNIX and Linux environment.
• Working with VERITAS Volume Manager 3.5 and Logical Volume Manager for file system management, data backup and recovery.
• User administration which included creating backup account for new users and deleting account for the retired or deleted users.
• Implementing backup solution using Dell T120 autoloader and CA Arc Serve 7.0
• Managing Tape Drives and recycling it after specific period of time as per the firms policies.
• Working with DBA's for writing Scripts to take database backup and scheduling backup using cron jobs.
• Creating UNIX and PERL scripts for automated data backup, status of the storage.
• Installing and configuring Oracle 8i database and Sybase server on Solaris after creating the file systems, users and tuning the kernel.
• Installed and Configured SSH Gate for Remote and Secured Connection.
• Setting up labs from scratch, testing hardware, installing and configuring various hardware devices like printers, scanners, modems, network and communication devices.
• Configuration of DHCP, DNS, NFS and automounter.
• Creating, troubleshooting and mounting NFS File systems on different OS platforms.
• Installing, Configuring and Troubleshooting various software's like Windd, Citrix Clarify, Rave, VPN, SSH Gate, Visio 2000, Star Application, Lotus Notes, Mail clients, Business Objects, Oracle, Microsoft Project.
• Troubleshooting and solving problems related to users, applications, hardware etc.
• Working 24/7 on call for application and system support.
• Experience in working and supported SIBES database running on Linux Servers.

Junior Linux / Systems Administrator

• Installing, configuring and updating Solaris 7, 8, Red Hat 7.x, 8, 9, Windows NT/2000 Systems using media and Jumpstart and Kickstart.
• Installing and configuring Windows Active directory server 2000 and Citrix Servers.
• Published and administered applications via Citrix MetaFrame.
• Creating and Authenticating Windows user accounts on Citrix server.
• Creating System Disk Partition, mirroring root disk drive, configuring device groups in UNIX and Linux environment.
• Working with VERITAS Volume Manager 3.5 and Logical Volume Manager for file system management, data backup and recovery.
• User administration which included creating backup account for new users and deleting account for the retired or deleted users.
• Implementing backup solution using Dell T120 autoloader and CA Arc Serve 7.0
• Managing Tape Drives and recycling it after specific period of time as per the firms policies.
• Working with DBA's for writing Scripts to take database backup and scheduling backup using cron jobs.
• Creating UNIX and PERL scripts for automated data backup, status of the storage.
• Installing and configuring Oracle 8i database and Sybase server on Solaris after creating the file systems, users and tuning the kernel.
• Installed and Configured SSH Gate for Remote and Secured Connection.
• Setting up labs from scratch, testing hardware, installing and configuring various hardware devices like printers, scanners, modems, network and communication devices.
• Configuration of DHCP, DNS, NFS and automounter.
• Creating, troubleshooting and mounting NFS File systems on different OS platforms.
• Troubleshooting and solving problems related to users, applications, hardware etc.
• Working 24/7 on call for application and system support.