SUMMARY

• 8+ Extensive experience ininstalling, maintaining and troubleshooting Redhat Linux,Solaris, AIX, HP - UX,Cent OSand knowledgeable in computer hardware servers and various devices.
• Intensively involved in Change management team’s interaction in Client’s Change Advisory Board (CAB) meetings and getting approval from change managers and change Co-ordinators for the High level maintenance and implementation of changes, creating problem tickets and finding RCA if required for Sev 1s and Sev 2s.
• Experience in Installing, upgrading and configuring Redhat Linux 4.x,5.x,6.x,7.x using Kickstart Servers,Solaris 8, 9, 10 using Jumpstart Servers and Interactive Installation.
• Experince with manually configurirng the .cfg file and hosting on a http porxy and utilization it for building servers from scratch using kickstart.
• Worked on migration of Sun Solaris Unix servers to Linux (Novell/SuSe 9.0) on Dell Blade Servers and Windows 2003.
• Worked actively in migrating HP UX 11.00/11/23/31 , Solaris 9 10 and RedHat Linux servers using LVM online data migration process.
• Experince with migration of Solaris 9 10 to Redhat 6.x 7.x
• Experience with harding and securing the OS Redhat 7.x .
• Knowledge of related hardware platforms including IBM Systems i and IBM RS/6000 series
• Solid understanding of all aspects of AIX administration and systems operations
• Extensively worked on different tools likeVeritas Volume Manager,VeritasFile System,VeritasCluster,and VeritasNet Backup.
• Extensively worked onTCP/IPnetworks,Win NT (WINS/DNS/DHCP), UNIX (NIS, NFS, SSH & Samba), LAN/WANTechnology, messaging servicesand Internet Services(DNS, SMTP, POP3/IMAP4, Send mail, Web, Proxy, Radius).
• Developed shell scripts(Korn, C Shell), Oracle, SQL Server, PL/SQL, PERL,andJava Script.
• Expertise in various administrative tasks onSun Fire E6800, E10K, E15k, and E25kServers. Experienced in setting upSun hardwareand Storage devices likeEMC Symmetrix, DMX and Clarion.
• InstalledSolaris 10onSun Fire 280R, V240, V440, V480R Sun Fire E2900, Sun Fire V1280 Production Servers .
• Experience with Virtualization technologies like installing, configuring,VMware vSphere. Creation, management, administration and maintenance of virtual servers and clients .
• Experience in Networking configuration & Security Configuration on ESX Host.
• Extensive knowledge in advance features of ESX VMOTION, SVMOTION, HA and DRS.
• Experience in P2V, V2V MIGRATION using VMware Converter / Plate Spin 6.8.x. Creating host and client VM templatesandcloning.
• Granted security and configured user access and limits using AWS Identity and Access Management (IAM) by creating new profiles and policies for user management in JSON.
• Dealt with Datacenter migration to Amazon Web Services (AWS) infrastructure and provided support to Applications and Database teams.
• Worked on installation of Docker using Docker toolbox.
• Worked on creation of custom Docker container images, tagging and pushing the images.
• Worked on F5 load balancers GTM and LTM configurations.
• Worked on configuration and automating CA site-minder Web agent (Single Sign on ) .
• Worked Chef and Puppet, the configuration management tool .
• Tied together disparate pieces to build a fully automated bare-metal to production server build system using RequestTracker(RT) with the AssetTracker plugin as the system of record. DNS, DHCP, kickstart, and Puppet tied into the system.
• Used Puppet for central management of Linux configuration files and software package management
• Installed, configured, managed Puppet Master and Puppet Agent
• Wrote custom modules and manifests, downloaded pre-written modules from Puppet-forge
• Providing Version Control with Subversion and Automated Build & Deployments.
• Experience with GIT for version control .
• Installation and upgradation ofPackagesandPatchesconfiguration mgmt, version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience in configurationofNIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, ftp, remote access, security managementand Securitytrouble shooting skills.
• Experience in administeringVMware Infrastructure Client 3.5andVsphere 4.0.
• Experience in InstallingFirmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience inSun Solaris 10(Creation ofZones,Service Management Facilities,Virtualization,Containerbased).
• Installed and ConfiguredWebLogic 10.3on variousDevelopmentandProductionBoxes.
• Created Domains, Servers, and Clusters by usingWebLogicAdministration Console on various Production Servers.
• Experience in administration Websphere Application Server .
• Handled deployment of JAR, EAR and WAR files to the respective application server instances.
• Installed and configuredEmulex LP9002S-E, LP10000CXDC-E HBAsonSun Enterprise 4500, 6500, Sun Fire E6800, Sun Fire E15K, and Sun Fire E25K.
• Experience inOracle 9i RAC and Oracle 10g RACInstallation and Configuration.
• Competent introubleshootinga broad range ofhardware issues.
• Extensive experience in the Managed Hosting Industry as well as the Managed Security Services industry.

TECHNICAL SKILLS

Operating Systems: RHEL 4/5/6/7, Solaris Release 2.10/2.9/2.8/2.7 , IBM-AIX 5.X, Windows 98, Windows 2000 and NT.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra-Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas Netbackup 6.0, MS-Office/MS-Project, Puppet.

Web/ Application Server: Tomcat, Apache DB2, Oracle.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Python

PROFESSIONAL EXPERIENCE

Confidential

Linux Administrator

Responsibilities:

• Provided on-call support by rotation to provide 24x7x365 support on both Linux, Unix servers.
• Involved in building and configuring Red HatLinuxServers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Migrated Applications from Solaris,AIXand HPUX to Redhat systems.
• Created and maintained 1200+LinuxServers and 500+AIXservers.
• Installation, configuration and upgrade of Apache, JBOSS, Web sphere, MQSeries, Oracle & IBM Databases on the RHEL and OELLinuxSystems manually and through Puppet.
• Configured servers and infrastructure running Redhat an JBOSS, using PUPPET to configure, install, manage and bring up JBOSS and applications.
• Configured, tested and troubleshoot newly builtLinuxservers with NIC card configurations, TCP/IP and applications that ran off TCP/IP stack.
• Installed and configured JBOSS Application servers on DEV, QA and PROD Systems.
• Tuned OS parameters like SWAP and virtual memory setting s to improve the JBOSS performance.
• Configured Apache for JBOSS domains with virtual servers.
• Performance monitoring and tuning ofLinuxservers.
• Using Wire Shark Capture and analyze TCP, UDP, IP Packets.
• Experience in implementing high availability clusters using Redhat Cluster Solution (RHCS) with EXT3 and EXT4 file systems, VERITAS Cluster with VERITAS volume manager.
• Extensive use of Rsync utility for customized data migration from UNIX toLinuxsystems.
• Day to day troubleshooting and support for the end users newly migrated toLinux.
• Provided tested documented solutions for the second level infrastructure support teams for cutover activities from UNIX toLINUXwhich involves various scenarios like Hostname Swap, Hostname and IP swap, IP swap.
• Experience in migrating UNIX servers with High availability solutions such as HACMP and HP service Guard to theLinuxservers with High availability solution from Red hat (RHCS).
• Evaluated varied system logs and enforced good practices for web and application server environments.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Experienced in Troubleshooting critical hardware and software issues and day-to-day user trouble tickets.
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems on UNIX environments using shell scripting and CRON.

Environment: Red HatLinux6/7, BMC Tools, 1200+LinuxServers, 500+AIXServers, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, SAN Switches, Apache, Tomcat WebSphere, WebLogic application server.

Confidential, Phoenix, AZ

Unix/Application Support Administrator

Responsibilities:

• Provided on-call support by rotation to provide 24x7x365 support on both Linux, Unix servers.
• Installed and automated CA-siteminder -Web agent.
• Build and configured migrations of Linux (V2V, P2P and Lift and Shift on RHEL 5).
• Performed migration on solaris 10 to redhat 7.x
• Automated server building using System Imager, PXE, Kickstart and Jumpstart.
• Built, configured, and deployed RedHat virtual servers in a VMware vCenter environment.
• Build and configured Redhat 7.X servers from scratch .
• Responsible for Fixing Vulnerablity and also was involved in harding the OS RedHat 7.x .
• Installation, configuration and deployment of VMware products such as VMware Workstation, VMware converter, VMware View, VCB and morein virtual environment
• Experience in installing, configuring and troubleshooting VMware View Composer and View Connection Manager to make Virtual Desktop Infrastructure efficient and to simplify desktop administrative management tasks.Responsible for successfully upgrading all hosts and vCenter servers to vSphere 4.1
• Defined, documented and implemented hardened, standardised operating system images based on Red Hat Linux Enterprise 4,5,6.
• Wrote cron jobs for Redhat servers, integrated with Sendmail, automated FTP uploads/downloads, scp for automated batch file transfers.
• Wrote custom modules and manifests, downloaded pre-written modules from Puppet-forge
• Used Puppet for monitoring system and automation
• Worked with Puppet Enterprise tool for patch updates and stopping and starting various RHEL services
• Deployed the syslog/rsyslog services to a balabit server for audit purposes via Puppet
• Deployed the major components of the Puppet infrastructure like Puppet server, facter, hiera and PuppetDB.
• Managed Amazon Web Services (AWS) infrastructure with automation and configuration
• Deployed a Jenkins environment for continuous integration/builds. All builds output rpm packages as artifacts.
• Good experience in Amazon Web Services (AWS) environment and good knowledge of AWS services like Elastic Compute Cloud(EC2), Elastic Load-balancers, Elastic Container Service (Docker Containers), S3, Elastic Beanstalk, CloudFront, Elastic Filesystem, RDS, DMS, VPC, Route53, CloudWatch, CloudTrail, CloudFormation, IAM.
• Created detailed AWS Security Groups which behaved as virtual firewalls that controlled the traffic allowed to reach one or more AWS EC2 instances.
• Managing Multiple AWS instances, assigning the security groups, Elastic Load Balancer and AMIs
• Supported Chef Environment with 500+ servers and involved in developing and deploying cookbooks
• Experience with customization of Ruby code from existing libraries
• Responsible for Deploying a highly-available cluster of virtual machines set up with nginx, Unicorn, and Ruby for a new website.
• Provided L3 support on patching, built servers using VRO.
• Responsible for DNS automation, configured Single Sign on.
• Maintained and supported the IBM Tivoli Directory integrator that synchronizes the data between the disparate systems and implemented the same in development environment.
• Designed SSL authentication on the Tivoli Directory Server
• Responsible for upgrades, configuration, and deployment of Apache Tomcat, httpd, IHS, WAS and several other software packages.
• Installation, Configuration and Administration of IBM WebSphere Application Server 5,6 & 7 and WebSphere Portal Server 5.1.0.4 on Linux platform.
• Strong knowledge in IBM Websphere Application Server (WAS) 6.0x - 7.x, Websphere Portal 6.1.
• Experience in administrating the infrastructure for Websphere Portal, Application Servers (Websphere, WebLogic, etc.), Web Servers (IBM Http Server, IIS, etc.), Web Services, XML, HTML.
• Involved in Day to day activities includes Recycling JVMS, Deployment of configuration manifest through Deployment manager, Increase of Java Heap Size, Copying Keys and managing web servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Setup continuous integration build environments for running unit tests. Managed and prioritized related issues within the projects using GitHub Issues.
• Set up Jenkins server and build jobs to provide continuous automated builds based on polling the Git source control system during the day and periodic scheduled builds overnight to support development needs using Jenkins, Git and JUnit.
• Automating with OpsCode chef,testing chef recipies/cookbooks with test-kickten/chefspec/serverspec.
• Migrating VCS, Oracle RAC and Redhat Clusters with gfs filesystems servers across the Data Center, which includes Configuration of new IP, VIP and Prative IP.
• Adding Oracle ASM disk to the server. Creating and managing LVM.
• Installation and configuration of Powerpath, Solution Enabler, RSA Envision, ITM, ITIM and BMC.
• Experience in NTP, DNS( BIND), Homedir, LDAP on various Unix platforms AIX, Linux and Solaris.
• Installed ESX on IBM X3850 boxes
• Experience in Installation and upgrade of HPUX 10.x to 11.x.
• Design and Consolidation of multiple SCCM/SCOM versions and instances from legacy domains into a single 2012 SCCM/SCOM deployment.
• Creating bespoke tools to support and enable Continuous Integration, Continuous Deployment and system monitoring/reporting; using JSP and Shell Scripts with a MySQL database, harvesting data from various sources and API’s (Spark, Remedy, ClearQuest etc) to provide consolidated and automated live reports.
• Knowledge in EMC PowerPath and SRDF, Hitachi HDLM, and HP Secure Path.

Confidential, Chicago, ILJan

Unix/Linux Systems Administrator

Responsibilities:

• Installation, Configurationand Administration ofRedhat Linux 5.x,6.x,OEL 5.x, AIX, Solaris 10 comprising oftesting, tuning, upgradingandloading patches, troubleshooting both physicalandvirtualserver issues.
• Installed and configured Solaris servers usingJumpstart, configured/maintainedZones, LDOMs, ZFS poolsonSun Solaris 10 Servers.
• Migrated Solaris 9 to redhat 6.x
• Building AIX severs from scratch .
• Creating, cloning Linux Virtual Machines, templates usingVMware Virtual Client6.0and migrating servers betweenESX hosts.
• Experienced in working withPerl,shellscripting(ksh, bash)to automate administration tasks.
• Configuringmultipath, Powerpath,addingSAN, creatingphysical volumes, volume groups,and logicalvolumes.
• Adding policies, packages, patchesto servers using HP Opsware.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• Managed Puppet infrastructure through major version upgrades. Refactored Puppet code to leverage new features.
• Implemented a complete central system management and monitoring system using Puppet and Xymon and implemented cluster management using fully automated (chef/Puppet and deployment via various code deployment tools integrated with git or subversion)
• Refactored existing infrastructure; refactored all application configurations; added additional hardware into a mixed Linux/Windows environment.
• Good Experience in architecting and configuring secure cloud VPC using private and public networks though subnets in AWS.
• Developed and managed cloud VMs with AWS EC2 command line clients and management console.
• Included security groups, network ACLs, Internet Gateways, and Elastic IP's to ensure a safe area for organization in AWS public cloud.
• Installing and configuringApacheand supporting them onLinux production servers.
• TroubleshootingLinux network, security related issues, capturing packetsusing tools such asIPtables, firewall, TCP wrappers, NMAP.
• AttachingNFSfilesystems exported fromNetapp Servers i.e. NAS filers.
• DesigningFirewall rulesfor new servers to enable communication withapplication, Oracle 11g servers.
• Monitored server and applicationperformance & tuningvia various stat commands (vmstat, nfsstat, iostatetc.)andtuned I/O, memory, etc.
• Installation and configurationVeritasNetBackup7.1onSun/LinuxSevers and performing backup.
• ManagedVeritas Cluster Server5.5onSun/Linuxservers performing manualfailover, addingresources, service groups.
• Installed and configuredWebsphere, Weblogic 10.x, Oracle 10g, 11ion Solaris and Linux servers.
• Deploying J2EE Application archives (JAR, WAR, EAR and RAR) and Web-Based/E-Commerce on Web Logic Application Server and JBOSS 6.x/7.x.
• Varied experience in Clustering (both horizontal and vertical), Workload management, creation and maintenance of Domains, Nodes and Managed Servers instances in a WebLogic, JBOSS and Websphere server environments.
• Installed, prepped serversforOracle RAC10g installation, configuration which includes package installations, tuning kernel parameter, addingSAN/NAS.
• Managing systems routinebackup, scheduling jobslike disabling and enablingcron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Installation and configuration ofVxVM 5.0and creatingdisk groups, volumes, increasing volumes.
• Worked on Openstack (Havana), creating VMs, security groups, adding resources.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP ProliantDL385/585G5,G6 servers,and HP BL 465CG5blade centers).
• Experienced inTroubleshooting critical hardware and software issuesand otherday-to-dayuser trouble tickets.
• Adding serversto the domain and monitoring them usingspectrum, sitescope, cacti.
• Developed automated processes that run daily to check disk usage and performclean up of file systemson UNIX environments usingshell scripting and CRON.
• Implementation, testing and verification ofdisaster recoveryplan andBackups.

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 486 G6, BL 465/485,ML Series, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Confidential, Gaithersburg, MD

Unix/Linux Systems Administrator

Responsibilities:

• Installation and administration ofRHEL 5.x, Cent OS 5on both HPandIBM Bladeand standalone servers.
• Configuredkickstartserver and updating/applying patches to the servers usingRedhatSatellite server.
• Planning and implementing systemupgradesincludinghardware, operating systemandperiodical patch upgrades.
• Installed and configuredVeritas VolumeManager 4.1, Veritas File System 4.1andVeritas Cluster Server 4.1onSun Fire V1280, E2900, E6900,and E25KProduction Boxes.
• Installed and configuredVeritas Storage Foundation SuiteonHP Proliant DL seriesproduction boxes.
• Custom build ofWindows 2003andWindows 2008servers which includes addingusers, SAN, network configuration, installing application related packages, managing services.
• Worked on Puppet which includes installation, configuration of Puppet, creating Puppet profiles, manifests, modules and push them across servers..
• Deployed Puppet for automated management of machine configurations.
• Experience on AWS services like EC2, S3, RDS, ELB, EBS, VPC, Route53, Auto scaling groups, Cloud watch, Cloud Front and IAM for instantiating, configuring and managing various Amazon images for server migration from physical servers into cloud.
• InstalledSUN OSversions 2.9, 2.10 on Sun Fire V1280, E2900 Production servers
• Installed and configuredPower Path 4.5onSun Enterprise Ultra E450, V880, V1280, E2900, E6900 and E25K Domain Boxes.
• Worked withVeritas NetBackup 5.0on production serversE6900 and E25K.
• InstalledSolaris 10onSun Fire 280R, V240, V440, V480R Sun Fire E2900, Sun Fire V1280 Production Servers.
• ConfiguredOracle ASMon Redhat 5.x servers, created raw devices for Oracle DBAs.
• CreatedGlobalandNon-GlobalZoneson Sun Fire 280R, E2900, V1280, E6900 Production Boxes.
• Installed and ConfiguredWebLogic 8.1on various Development and Production Boxes.
• CreatedDomains, Servers, and Clustersby usingWebLogic Administration Consoleon various Production Servers.
• Installed and Configured Emulex(lpfc) LP10000, Qlogic qlc2300, HBAson variousHP Proliant DL servers.
• Troubleshootedvarious problems when working withVxVMin initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Worked in24X7supportsin Production and development environments.

Environment: Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Puppet, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential, Conway, AR

Unix/Linux Administrator

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 usingJump-startserver and Red Hat Linux Servers usingKickStartserver as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident managementfor Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers withZonesandcontainerswith SunZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems,network using the toolsNAGIOSandBMCTools.
• Setup Puppet master, client and wrote scripts to deploy applications on Dev, QA, production environment.
• Created continuous integration system using Ant, Jenkins, Puppet full automation, Continuous Integration, faster and flawless deployments.
• Experience in designing and implementing AWS Solutions using EC2, S3, EBS, Elastic Load balancer (ELB), VPC and CloudFormation.
• Worked with AWS IAM to generate new accounts, assign roles and groups
• Extensive experience in installing, integrating, tuning and troubleshootingApache, Tomcat, WebSphereandWeblogicapplication server.
• ImplementedSUDO, SSHand othersecurity toolsand implementedSOX(Sarbanes Oxley) security compliance.
• Assisted in configuring the application servers with other components such asdatabase, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use ofVeritas Volume Manager for Disk management, file system managementon Sun Solaris environment.
• Experince using centrify for Identity access management .
• CreatedZetabyte file system (ZFS)in Solaris 10. Createdzpools. Exported ZFS from local zones to local zones.
• Installation and configurationVeritas NetBackupon Sun Severs and performing Backup using Veritas Net Backup.
• Extensive use ofKorn shell, Bashfor scripting.
• Expertise in Linuxbackup/restorewith tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris usingVCSin heterogeneous SAN environment.
• Regulardisk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and ImplementedOS patcheson both Solaris & Linux boxes as a part of proactive maintenance.
• Worked with other IT teams, customers (users), and other managers in helping build and implementsystems and standards.
• Involved inmigrationof projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers,SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Confidential, Katy, TX

Unix Systems Administrator

Responsibilities:

• InstalledRHEL 3.0/4.0andSuse 10.xusingkickstart/autoyastand custom building the servers per Statement of Work.
• InstalledSolaris 2.6, 2.7, and installed patches and packages onSUN Enterprise 6500, 4500, 420, Ultra 2 Servers.
• Installed/configuredEMC Storagewith0, 1& 5 RAIDconfigurations.
• Installed and maintainedSecurity issues.
• InstalledVeritas Volume Manager, VCS Cluster Serverfor failover and for mirroring and raid level configurations onEMCstorage frames.
• Performed all System Administration tasks likecron jobs, installing packages, and patches.
• ConfiguredMail relaying, virtual host, POP3 and IMAP4services and enforced security policies.
• Configured and installed Auto mount andJumpstart.
• Oracle Installation 8.1.5on Solaris 2.6 & Red Hat Linux Enterprise 3.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintainedSamba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Maintainfile system disk space.
• Troubleshootingsystem, networkanduserissues.
• Performingtape backups, archiving and checking data integrity throughShell Scripts andjob automation.
• Supported back office systems environments.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation & Maintenance ofuser accounts & passwords & profiles, home directories, initialization of files, groups'creationandmanagement, setting file permissions, customizing shell environment setup for users.
• Additional responsibilities include schedule and administration of serverbackups, setup and administration ofnetwork and msmailaccounts.
• Troubleshooting various problems related toVxVMininitializing, replacing, mirroring, encapsulatingandremoving disk deviceson various Production Boxes.
• Maintaining production critical servers running SolarisUNIX, LinuxsupportingOracle databaseandWeb services. Providing 24x7 supports.
• Worked efficiently usingVeritas NetBackupon development and production servers for backups and restores.
• CreatedLVMson Linux servers.
• WritingShell Scriptsfor managingday-to-daytransactions & for automation of routine tasks.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager,web servers, LDAP directory, Active Directory, BEA Web logic servers, SAN Switches,Apache, Tomcat WebSphere, Weblogic application server.

Confidential

Systems Administrator

Responsibilities:

• Creating domains onE6800, E10K, E15k,and E25Kon sun high end servers.
• Data Migrationfrom onesymmetrix11 BoxestoDMX14 BoxesonE15KandE25K sun high end servers.
• Installed differentpatchesonE10K,E15K, E25K sun servers.
• Developed perl Scripts forscheduling jobs.
• Installed Sun OS versions 2.7, 2.8 onSun FireV240, Sun Fire V280R, V440, V480, Sun Enterprise 3500,and SunEnterprise 350.
• Configured different network services like DNS, NFS, NIS, SAMBA, Apache on Sun Enterprise 3500 and Sun Enterprise 350.
• Installed and configured firewalls on various production servers.
• Implemented security on firewallson various production servers.
• Configured cisco switches 2900 and also implemented VLANs.
• Maintained ULTRA SCSI external disks for Sun Enterprise 3500/4500.
• Monitored hardware diagnostics onSun Fire V240, Sun Fire V440, Sun Fire V480, Sun Enterprise 3500, Sun Enterprise 4500,and SunEnterprise 350.
• Installing and ConfiguringWindows 2000 serveronhp proliant DL 580, hp proliant DL380 boxesfor production environment support.
• CreatingDatabase users, roles, profiles, alert logs/ trace logson Oracle Database application boxes.
• Maintainedstartup and shutdown procedureson oracle database applications.
• Backup and Recovery procedures by usingRMAN.
• Backup and restore administration withlegato networker on sun E 3500.
• Worked as support team member in24X7development andproduction environment support.
• Familiar with Installation and configuration ofweb sphereapplication advanced server Edition 4.0.1.
• ConfiguredJVM Heap SizesonWeb SphereAdministrator Console.

Environment: Heterogeneous data center environment consists of more than 130 servers including SUN SOLARIS 2.5/2.6/2.7/2.8/2.9 , HP-UX 10.20 & 11.0, WINDOWS NT 4.0, WINDOWS 2000 servers, And ORACLE DATABASES (8i&9i).