SUMMARY

• 7 years of Strong Experience in LINUX/UNIX Administration, Shell Scripting with expertise in Red-hat Linux 3, 4 and 5, Solaris 8, 9 and 10.HP-UX 11.i, AIX 5.1, 5.3 and 6.1, Windows 2003, WebLogic ,WebSphere JAVA, J2EE Applications and SQL.
• Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked with systems support team to define, architect and maintain highly available production systems.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Unix Servers.
• Experience in implementing and monitoring High Availability environment using VeritasCluster Server, Sun Cluster, Redhat Cluster, HP Service Guardand HACMP.
• Configured and used Jumpstart, Kickstart, Ignite and NIM to install OS.
• Worked on Solaris 10 Container Technology. Created and maintained local zones.
• Managed resources for zones using Solaris 10container technology.
• Solaris Live Update Technology associated with an operating system upgrade or maintenance.
• Strong experience in VERITAS Clustersin supporting high availability mission critical servers.
• Experienced with the installation, configuration and volume/File system management using Veritas Volume Manager VxVM , Logical Volume Manager LVM and Solstice Disk Suite Solaris Volume Manager .
• Backup management and recovery policies using VERITAS Net-Backup.
• Experience in creating physical volume, logical volume, volume groups using LVM's in Linux/AIX, HP-UX ITANIUM and PA-RISC and SVM, GFS global file system and ZFS in Solaris.
• Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS , SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
• Experience in VMware Installed and monitored Virtual environments with ESX 3.xserversand Virtual Center 2.X
• Experienced in working with Storage Area Network SAN , EMC CLARiiON CX, EMC Symmetrix DMX, EMC MirrorView, HP storage and Hitachi data storage.
• Expert in Installation, configuration of Patches and Packages.
• Experience in installation, configuration and administration of WebLogic and Web sphere Servers.
• Proficient in Installation, Configuration, Support Maintenance of various Sun Sparc Enterprisehardware's and RedHat5.x Linux Servers located at Remote Locations. Deployment of Application Software E-Com/J2EE, B2B, B2C, Oracle, Sql Server, ERP SAP, Oracle Apps, People soft
• Experience in providing day-to-day user administration like adding and deleting users and managing users queries.
• Excellent in Systemperformance tuning Configuration
• Sound understanding of IT Infrastructure Administration with project management skills.
• Providing 24/7 technical support to Production environments
• Experience in configuration and testing Disaster Recovery Site.
• Experience in writing Shell/Perl Scripts.
• Technical professional with management skills, excellent business understanding and strong communication skills.
• Good at Project management Configuration management

TECHNICAL SKILLS

PRofessional summary

Confidential

Sr Linux/Unix Systems Administrator

Responsibilities:

• Senior UNIX administrator responsible for maintaining over 1,500 Linux Redhat, Suse, OEL and Sun Solaris systems, and provide support for over 2000 servers globally.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 4.0 and migrating servers across ESX hosts.
• Jumpstart Solaris servers, custom configure, install packages, patches, harden. Creating LDOMs, installing Solaris, creating volumes, installing packages.
• Created Zetabyte file system ZFS in Solaris 10. Creating Zones, zpools and adding resources like network, filesystems.
• Performed server builds on various HP platforms such DL380, DL580, BL460c and BL680c blades, as well as Sunfire and Oracle M/T series servers.
• Installed and configured highly available systems utilizing Veritas Clustering and Veritas Volume Manager technologies.
• Provided level 3 technical support for the development teams on a daily basis
• Worked on digital marketing based applications like OAS, AppNexus.
• Installed Opsware agents, created packages, policies, scheduled jobs on Opsware.
• Installed Solaris 10 using jumpstart, flar image on both physcial servers and LDOMs.
• eorked on Veritas Netbackup 6.5 which includes installation, creating policies, configuration and upgrading servers.
• Performed Weblogic Portal 10g 10.3.6 Installation, Configuration and performed administration tasks.
• Installation and configuration: Install, configure and administer Oracle SOA Suite 11g and its supporting technologies
• Deployment and configuration of Oracle SOA Suite 11g applications to different environments.
• Testing applying patches, updates fixes for Oracle SOA and dependent WebLogic component on UNIX and Linux environments.
• Support development team to deploy, administer J2EE application in WebLogic through the life cycle of application.
• Installing, configuring, custom building Oracle10g, Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Worked and performed data-center operations including rack mounting, cabling.
• Installing, configuring, administering Veritas Cluster Server 5.0, creating service groups, adding resources, enabling attributes, testing fail-over.
• Worked on Puppet, creating profiles, pushing changes,

Confidential

Linux/Unix Systems Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0and SUSE 11.x.

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun Solaris, AIX, HP-UX systems.
• Performed automated installations of Operating System using Jumpstartfor Solaris and kickstart for Linux.
• As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third partytools, securing of OS, installing configuring, job scheduling.
• Installation and configured Solaris 10 with Zones, Containers and Ldoms.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System, Veritas Cluster Serverand Oracle SF RAC.
• Created File systems from local storage as well as NFS partitions for application portability
• Set up Linux servers for LAMP implementations and readiness
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts
• Built servers according to standards specified as per individual applications
• Installed the Operating System on Solaris and Linux servers and Blades over the network.
• Created Zetabyte file system ZFS in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
• Installed and verified that all AIX/Linux patches or updates are applied to the servers.
• Installing, administering Redhat using Xen, KVM based hypervisors.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Installed, configured, and maintained WebLogic 10.x and Oracle 10g on Solaris Redhat Linux.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Installation of packages, patch management, volume managment on Suseservers using YaST.
• Preparing servers for Oracle RACinstallation which includes tuning the kernel, agent installation, adding NAS storage.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Monitored server and application performance tuning via various stat commands vmstat, nfsstat, iostat etc and tuned I/O, memory, etc.
• Coordinated with the Storage, Network and Hardware teams on server provisions HP Proliant DL385/585 G5, G6 servers, and HP BL465C G5 blade centers .
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.

Environment:Red-Hat Linux Enterprise servers HP Proliant DL 585, BL 465/485,ML Series , Solaris 8,9,10, AIX 5.3, 6.1, 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 Insfrastructure 3.5.

Confidential

Linux/Unix Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0and SUSE 10.x.
• Configured kickstartserver and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation of packages, patch management, volume managment on Suseservers using YaST.
• Automation of jobs through crontab and autosys.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Applied appropriate support packages/patches to maintain system integrity.
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Adding servers to domain and managing the groups and user in AD, installing and configuring sendmail.
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
• Worked with project manager and auditing teams to implement PCI compliance.
• Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
• Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1.
• Integrating Weblogic10.x and Apache2.x and deploying EAR, WAR files in Weblogic Application servers.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager Solaris Volume Manager. 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.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Environment:Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential

Systems Administrator

Responsibilities:

• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory , BEA Web logic etc.
• Implemented SUDO, SSH and other security tools and implemented SOX Sarbanes Oxley security compliance.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat,WebSphere and Weblogicapplication server.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Installed and configured Solaris 10 servers with Zones and containers with SunZFS.
• Incident management for Unix Servers Solaris, Linux .
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Installation and configuring of SUN Solarisand Linuxservers.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zetabyte file system ZFS in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration VeritasNetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Extensive use of Kornshell, Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk 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 Implemented OS patches on both Solaris Linux boxes as a part of proactive maintenance.
• Worked with other IT teams, customers users , and other managers in helping build and implement systems and standards.
• Involved in migration of 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, VeritasNetBackup, 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

UNIXAdministrator

Responsibilities:

• Installed RHEL3.0/4.0 using kickstart and custom building the servers per SOW.
• Installed/configured EMC Storage with 0, 1 5 RAID configurations.
• Installed and maintained Security issues.
• Installed Veritas Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured Mail relaying, virtual host, POP3 and IMAP4 services and enforced security policies.
• Configured and installed Automount and Jumpstart.
• Oracle Installation 8.1.5 on Solaris 2.6 Red Hat Linux Enterprise 3.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Troubleshooting system, network and user issues.
• Performing tape backups, archiving and checking data integrity through Shell Scripts and job automation.
• Supported back office systems environments.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation Maintenance of user accounts passwords profiles, home directories, initialization of files, groups' creation and management, setting file permissions, customizing shell environment setup for users.
• Additional responsibilities include schedule and administration of server backups, setup and administration of network and msmailaccounts.
• Troubleshooting various problems related to VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Maintaining production critical servers running Solaris UNIX, Linux supporting Oracle database and Web services. Providing 24x7 supports.
• Worked efficiently using VeritasNetBackup on development and production servers for backups and restores.
• Created LVMs on Linux servers.
• Writing Shell Scripts for managing day-to-day transactions for automation of routine tasks.

Environment:SUN Servers 6500, 4500, 420, Ultra 2 Servers , Solaris 2.6/2.7/8, VeritasNetBackup,Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.

Confidential

Systems Admin

Responsibilities:

• Installation, Configuration, Upgradation and administration of Sun Solaris, RedHat Linux.
• User account management and support.
• Jumpstart Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disksuite.
• Involved in Installing and configuring of NFS.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Trouble shooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that have not been discovered previously.

Environment:Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.