SUMMARY:

• 6 Expertise experience in System Administration working on Linux Redhat, SuSe, OEL , Sun Solaris, AIX, HP-UX, Cent OS and Windows NT/2000 environments. Installs, Upgrades, Patches, Configuration, performance tuning on UNIX and system software hardware.
• Extensive experience in installation, configuration and administration of Solaris 2.x, 8, 9, 10, Redhat 4.x, 5.x, 6.x HP-UX 10.x, 11.x, IBM AIX 4.3, 5L.
• Have worked on various IBM pSeries servers, RS/6000 platforms and have extensive experience in Configuration, Installation, Migration and Administration of AIX including installation, configuration and maintenance of HACMP v5.x on AIX v5.x/v6.x/v7.x
• Configuration management including the building of LPARs and configuring the hardware devices that support them.
• Micro partitioning, DLPARS and Virtualization.
• Worked on creating Architecture Design Documents for AIX LPAR builds which include designing network storage setup.
• Planning, Configuration of VIO Servers on VIOS 1.1, 1.3, 1.5, 2.2.
• Installation and Configuration of NIM Server, For OS and Patch management.
• Experience with SMIT, LVM, Mirroring, User System Resource management, Paging Space management, job scheduling.
• Installing, upgrading and configuring SUN Solaris Using Jumpstart Servers, Red hat Using Kickstart Server, AIX using NIM, Ignite using HP-UX and Interactive Installation.
• Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0.
• Very strong working experience in Sun Solaris 10 Virtualizations Zones, Containers and Ldoms
• Strong Experience in Weblogic 5.1, 6.1, 7.0, 8.1 and 9.1/9.2 Application Server and very good experience in Weblogic 6.1/7.0/8.1/9.1/9.2 Clusters.
• Strong experience on Web servers such as iPlanet Webserver 6.0 /Sun one web server 6.3/6.5, Netscape Enterprise Server 4.0, Tomcat 5.x/4.x/3.x Apache Server 1.x/2.x.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Expertise in VERITAS Volume manager VxVM , Creating new file systems, mounting file systems and unmounting file systems.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using VERITAS Cluster Server 3.x/4.x, sun cluster server, Redhat Cluster Server and Service Guard in SAN environment.
• Experience in SAN environments like EMC Storage Systems EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays Emulex QLogic HBA's and TSM Tivoli Storage Management .
• Very good knowledge on VCE platform design and engineering, experience in using Cisco, VMware and vBlock solutions.
• Expert in Installing, configuring and maintaining apache/tomcat, samba send mail, Web Sphere Application Servers.
• Extensively Worked on NPIV for port virtualization and on VIOS and NPIV client Storage migration.
• Involved in building five p770 frames each of 4 CEC , installing VIOS, creating LPAR profile, performing all the powerVM operations, Installing OS, building NIM server, Security remediation and OS hardening, upgrading HMC, system firmware and VIOS.
• Expertise in implementation and maintenance of Apache SMTP, DHCP, NFS, NIS, NIS , LDAP, DNS, SAMBA, SQUID, Postfix, Sendmail, FTP, Remote Access, Security Management and Security trouble shooting skills.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VERITAS volume manager, Solaris volume manager.
• Experience in using VERITAS Net Backup, Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio, File system administration.
• Configured Networking Concepts DNS, NIS, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Expert in Data center operations including hardware, software setup monitoring, troubleshooting on a 24x7 basis with BMC patrol, Team Quest, Unicenter Smart trouble ticketing Systems/remedy tickets/kintana tickets etc.
• Installing, Configuring Solaris Volume Manager Solstice Disk suite 4.2.1 VERITAS Volume Manger. Installed Configured HBA PCI/PCI-X in SAN storage. Configured installed ALOM Advanced Lights Out Manager , ILOM Integrated Lights Out Manager , XSCF Load Balancer.
• Installation of web logic, upgraded to service pack updates, installed. BEA patches, configuring and creation new domain, start and stop web logic server.
• Resolving system errors and crashes, huge file sizes, file system full errors and Installing network Printers and rectifying the Printer problems over the net work.
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls.
• Expertise in writing scripts for automation, and monitoring using Shell bash, C and Ksh , PHP, Python and Perl scripts.
• Experience in writing shell scripts to automate the administrative tasks and management using cron and at.
• Vintela A quest tool to migrate authentication and XDM2

PROFESSIONAL EXPERIENCE:

Confidential

UNIX/Linux system Administrator

• Working as Systems Administrator in Cisco Systems INC to migrate the whole cisco hosts from using NIS to AD authentication through Quest support product Vintela across the Cisco security environment.
• Working in the Cisco security team for migrating multiple UNIX systems over 26,000 to AD authentication that have been using NIS technology which is insecure and unsupported method of user login authentication.
• Helped in building the project from the scratch and worked out a standard procedure for the migration.
• Had weekly meetings with vendor Dell to trouble shoot over the versions and resolving the bugs.
• Performing UNIX administration tasks in Cisco test and production environment engaging with Cisco end users on daily basis to help in configuring and troubleshooting the client software on the UNIX servers.
• Decommissioning NIS infrastructure to save costs annually for Cisco security infrastructure as NIS is legacy technology, insecure mechanism and will be no longer supported by any company for retrieving user details.
• Dealing with lab owners, users to get the process worked out without disturbing the work on all the labs and desktops.
• Perform UNIX administration tasks in Cisco Development, test and production environments with installing, configuring and troubleshooting the client applications on the UNIX servers
• Working on incidence cases requested to our migration queue on priority basis and handling critical systems and their behavior to configuring new client software on them.
• Managing the NIS Proxy server setup and configuring NIS client's in-case the Quest Vintela product fails to help authenticate in UNIX hosts
• Performance monitoring of servers, checking the statistics and to identify bottlenecks on the servers in daily basis.
• Documenting the new process flow for migration, architectural flow and discovery process involved in troubleshooting client applications in Cisco Wiki link for end user reference purpose. Document in Cisco Wiki to set up standard maintained across the Cisco enterprise.
• Worked on with XDM2 software upgrade and setting up X-terminal sessions for users
• Deploy No machine XDM2 Application software across Cisco enterprise environment.
• Was responsible for managing and troubleshooting any issues faced by clients with their xtermainal sessions.

Confidential

UNIX/Linux Systems Administrator

• Day-to-day functional administration tasks, as well as application-specific technical support.
• On hand experience on Solaris OS installation using jumpstart, Configuration and troubleshooting.
• Configuring the services for sharing the resources from UNIX such as remote login through TELNET, FTP.
• Checking alert logs and trace files. File System maintenance, performance tuning.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Managing Task plans and uploading into database, Software Deployments on request basis for production environment.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Working closely with Vendors on Hardware Problems, software fixes.
• Initiating Backups on daily basis and monitoring the scheduled Jobs backups, Clarify Ticket based problem management.
• Deacom information gathering by running the scripts and testing remote connection.
• Troubleshooting SAN paths and also working with the vendors to solve problems.
• Troubleshooting the login errors.
• Worked on space issues when logical disk reaches maximum utilization, deleting Core files etc.

Environment:

Red hat Linux 5, 6, Solaris 8,9,10 , RedHat Cluster, VERITAS Cluster Server, Oracle 10g/11g RAC, JDK 1.5,1.6, ,VMware Virtual Client 3.5.

Confidential

UNIX/Linux system Administrator

Responsibilities:

• Plan, design, Implementing, Installation and configuration Operating System Installation and upgrade on Red Hat Linux 5, 6 on HP-Dl585, DELL DRAC and VMware.
• Configured NIM in AIX 5.x, 6.x, 7.x, KickStart Server in Linux 4.x, 5.x and JumpStart Server in Solaris 9, 10 u.x and build severs using NIM, kickStart and JumpStart server.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
• 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.
• Worked on updating and publishing Architecture documents for LPAR configuration, Network configuration Storage Configuration.
• Updated data center footprints which includes HMC layout, logical server layout, power cables PDU connections Network fiber connection tables.
• Performed AIX installations using mksysb via NIM server.
• Performed LPAR creation and Resource assignment from VIO.
• Blade server's virtualizations - manage, build and configure the VIOS and LPAR's on Blade servers and p-series. Creation and installation of new VIOS and LPAR's using HMC.
• Migrated AIX servers from B80, and POWER6 hardware to POWER7 virtualized hardware.
• Experience on IBM power5 p595, p590, p550, p520 and power4 p690, p630 machines.
• Build Yum and RPM repository Server for Development team to upload packages, Written UNIX Shell scripts for monitoring clean up old files.
• Implemented P2V virtualization from Dell hardware to VMware machines with RHEL4.5, 4.6, 5.3 as guest OS.
• Creating and deleting and managing user accounts and managing user quotas on the Network, Installed Apache Hadoop on Redhat Cluster servers.
• Configuring DNS, DHCP, NIS, NFS in Red Hat Linux 4.0 other Network Services, Linux kernel, memory upgrades and swaps area.
• Administration/Configuration of Print Servers/Clients in the Network, planning, configuration and maintenance of connectivity for servers as well TCP/IP configuration.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' and Monitored server and application performance tuning via various stat commands like vmstat, nfsstat, iostat etc and tuned I/O, memory, etc.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Performed Memory upgrades on VIO 2.1 servers uplift of the memory on LPAR's.
• Moved File Systems from one volume group to another volume group.
• Installed and configured HACMP 5.5 and performed HACMP management.
• Involved in Implementation of Oracle RAC and Oracle ASM Oracle ASR.
• Administration and Troubleshooting Solaris servers running business critical application Web Logic applications.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Installation of web logic, upgraded to service pack updates, installed. BEA patches, configuring and creation new domain, start and stop web logic server.
• Production support of Apache, Apache HTTPD, JBoss, Tomcat including installation, configuration, management and troubleshooting.
• Configure and maintain Windows 2000 Server that runs DNS, DHCP and active directory services.
• Formatted raw disks partitioned them using the fdisk utility. Created file system using newfs and mounted it.
• Configuring of nodes, Virtual IP, Private and Public network for Oracle RAC.
• Utilized Linux Terminal Server for removing fat client management, save on administration Provide users with a more reliable secure environment.
• Implementation of numerous VMware ESX virtual machines 2.5.x and 3.0 .
• Experience in creating Groups, Resources, Setting the resource properties and making Resource Online on MS Cluster Service.
• Worked in configuring and setup connectivity between web servers, database servers and directory servers as a process server administrator.

Environment:

Red hat Linux 4, 5, 6 HP Proliant DL 585, BL 465/485,ML Series , AIX 5.3/6.1/7.1, Solaris 8,9,10 Various Sun Hardwares , Redhat Cluster, VERITAS Cluster Server, Enterprise Security Manager, Opsware, Web logic 8.1, Oracle 10g/11g RAC, SAN Netapp , BladeLogic, , Jboss 4.2, JDK 1.5,1.6, ,VMware Virtual Client 3.5, VMware Infrastructure 3.5, Windows NT/2003.

Confidential

UNIX/Linux Systems Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0, Cent OS 5, Solaris 8,9,10, and AIX 4.3, 5.x, 6.x.
• Responsible for AIX OS migration from AIX 5.2 to AIX 5.3, 6.1.
• Worked with VERITAS Volume Manager, VERITAS Cluster Server in all environments. As a member of the team, monitored the VER ITAS Cluster Server 4.1 in SAN Environment.
• Performed migration from RHEL 4 to RHEL 5 automated installations of Operating System using kickstart for RHEL.
• Implemented and administered LVM based file systems on RHEL3,4,5
• Major part of support is dedicated to Production Application Environment.
• Responsible for NIM installation on LPAR's, setting up NIM Servers, Clients, Define the resources, Migrations with NIM.
• Responsible for testing a manual takeover configuration in a HACMP environment using clstat, clverify, etc., commands.
• Responsible for hardware installation required for AIX servers, also performed Zoning and LUN masking and getting hdisks from SAN.
• Designing Firewall rules for new servers to enable communication with application, data base Oracle DB2 servers.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Coordinated with the Storage, Network and Hardware teams on server provisions HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers .
• Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.
• Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Installing and configuring NDM, EMC Power Path, Veritas Dynamic multipathing and Oracle Client.
• Worked on Disaster recovery of Solaris servers using Sun DiskSuite and Veritas Storage foundation.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Analysis, Troubleshooting and Problem Resolution, Provided 24X7 support for large number Production, Development and Test systems.
• Involved in Reviews and Meetings Teleconferences with clients, Data Centers support contains 500 servers.
• Created, Modified and deleted user accounts using REMEDY AR system tool, supporting various applications on UNIX environment.
• Managing Task plans and uploading into database, Software Deployments on request basis for production environment.
• Building Task Plans for all S/W deployments and review with Application teams, Involved in applying patches and Bundles using Tivoli.
• Backup Monitoring Using Control-M Tool, Initiating Backups on daily basis and monitoring the scheduled Jobs backups.
• Installation of SSH and configuration of keys bases authentication. Install and configure JumpStart KickStart servers
• Integrating UNIX Directories and file systems using packages like SAMBA. Setting up printers on UNIX / NT machines to work seamlessly across platforms.
• Assisting Development team to provide the information and troubleshooting.
• Working with Development team to troubleshoot Web logic issues, troubleshooting the problems related to Apache web server.
• Working closely with Vendors on Hardware Problems, software fixes.
• Installed and Configured EMC SAN Power path, Expertise in use VMware virtual infrastructure.
• Initiating Backups on daily basis and monitoring the scheduled Jobs backups, Clarify Ticket based problem management.

Environment:

Solaris 8, 9 10, Linux 4.x, 5.x, AIX 5.x, 6.1, HP-UX 11.11, 11.23, E10K, E25K domain servers, Sun Fire V440 v210, v220, v240, Sun Blade 8000 servers, IBM F P Series, Dell, HP Proliant, Web sphere 6.1, VCS, VVM, Tivoli, Remedy Ticket Monitoring Tool

Confidential

LINUX/UNIX systems Administrator

Responsibilities:

• Installation and Administration of Red Hat Enterprise Linux 3, 4, 5 SLSE10 using Kick start including performance monitoring, scaling and capacity planning and hardware maintenance of Sun fire servers.
• Installation and Configuration of Red hat Satellite on Dell power edge 2650.
• Installation and configuration of CYGWIN on Windows in order to access UNIX system from Windows Operating Systems.
• Perform regular update to the latest patches for SUN Solaris and Linux machines.
• User and group administration for all the UNIX servers IBM AIX, HP-UX, RHL available in the lab.
• Configuration of Naming Services like DNS, DHCP, NIS, LDAP Novell eDirectory. Implementing Master and Slave servers for NIS, DNS.
• Expert in Installing, configuring and maintaining apache/tomcat, samba.
• Co-ordinate with web admin team in installation of BEA Web Logic Server 8.1.
• Creating, Mounting and Troubleshooting NFS File systems on different OS platforms.
• Troubleshooting and fixing day-to-day problems related to the servers.
• Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers, Used Solaris Cluster to deploy two-node cluster.
• Building Sun Solaris Servers from scratch with Jumpstart and Flash Archives for upcoming projects.
• Hands on Migration Red Hat Enterprise Linux 4.0 to RHEL 5.0.
• Responsible for Oracle database security and patching, Oracle database capacity analysis and planning.
• Providing 24 x 7 supports to various application level server level network level Monitoring troubleshooting of any data centre outages.
• Hands on VMware for installing Linux and SuSe Linux and windows on virtual machines.
• Managing disk storage with VERITAS Volume Manager 3.5/4.1 and Solaris Volume Manager with VERITAS File System VxFS .
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Created and Managed Meta devices using Solstice Disk suite and Volume Manager.

Environment:

Solaris 8, 9,10, Redhat 5.3,5.5, HP-UX 11i, Windows Server 2000 and 2003, Sun Enterprise 10000, 15000, Apache Web Server 1.3.x, 2.x Oracle 8i,9i2, Perl, KSH, Sun v480, v880, E220, IBM p630, p550,power 4 Dell POWEREDGE 700,2650,6650, Red hat Enterprise Linux 1.0.

Confidential

LINUX/UNIX Systems Administrator

Responsibilities:

• Plan, design, Implementing, Installation and configuration Operating System upgrade on Red Hat Linux 4.0 on HP-Dl585 servers.
• Red hat Linux Kickstart Installation.
• Installed configured HP Proliant. DL-320/360/380/560/580/585 L Servers.
• Installed and configured HBA card in SAN storage.
• Written UNIX Shell scripts for monitoring clean up old files.
• Creating and deleting and managing user accounts and managing user quotas on the Network.
• Configuring DNS, DHCP, NIS, NFS in Red Hat Linux 4.0 other Network Services, Linux kernel, memory upgrades and swaps area.
• Administration/Configuration of Print Servers/Clients in the Network, planning, configuration and maintenance of connectivity for servers as well TCP/IP configuration.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop'.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintainance. Scheduled cron jobs for job automation.
• Involved in Implementation of Oracle RAC.
• Administration and Troubleshooting Solaris servers running business critical application Web Logic applications.
• Installation of web logic, upgraded to service pack updates, installed. BEA patches, configuring and creation new domain, start and stop web logic server.
• Production support of Apache, Apache HTTPD, JBoss, Tomcat including installation, configuration, management and troubleshooting.
• Configure and maintain Windows 2000 Server that runs DNS, DHCP and active directory services.
• Formatted raw disks partitioned them using the fdisk utility. Created file system using newfs and mounted it.
• Configuring of nodes, Virtual IP, Private and Public network for Oracle RAC.
• Utilized Linux Terminal Server for removing fat client management, save on administration Provide users with a more reliable secure environment.
• Implementation of numerous VMware ESX virtual machines 2.5.x and 3.0 .
• Created high availability iSCSI SAN optimized for HyperV and VMware server virtualization environments.
• Experience in creating Groups, Resources, Setting the resource properties and making Resource Online on MS Cluster Service.
• Worked in configuring and setup connectivity between web servers, database servers and directory servers as a process server administrator.
• Experience in backup reporting and managing of EMC Legato Network Environments.

Environment:

Red hat Linux 4.0, HP-DL585, VERITAS Cluster Server, Enterprise Security Manager, Opsware, Web logic 8.1, Oracle 9i/10g RAC, HRT Frame Grabber Driver, GFT.