SUMMARY

• 9+ years of IT experience in large - scale enterprise support. Proficient in all aspects of Server computing Infrastructure Management.
• Experience in Installation, configuration, and System Administration with Linux (RHEL 6/5/4/3), Solaris (10/9/8), HP-UX (11.x/10.x), AIX (5.x/4.x) and Windows (/ 2008/2003/2000/ NT) administration.
• Experience in building Servers using Kickstart for Linux, Jumpstart and Flash Archive for Solaris, Ignite for HP-UX and exposure to NIM for AIX installation.
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUM repository in Red hat Linux
• Experience in building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with SystemImager that automates Linux installs.
• Experience in installation, configuration and administration of VMware based virtual servers using ESX/ESXi servers, vSphere and Virtual Center.
• Experience in implementing and monitoring High Availability environment using Veritas Cluster Server, Sun Cluster, Red Hat Cluster Suite and HP Service Guard.
• Experience in installing, configuring the Volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM), Solaris Volume Manager (SVM) and Veritas File System (VxFS).
• Extensive experience in installing, configuring and maintaining Application Servers like WebSphere and WebLogic, Web Servers like Apache, HTTP and Tomcat on UNIX and Linux.
• Extensively worked on administering NFS, NIS, NIS+, DNS, DHCP, LDAP, Mail servers and Samba servers.
• Extensively worked on Solaris 10 Container technology, responsible for creating, configuring and maintaining ZONES and installing applications on individual zones (global and local zones).
• Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on UNIX & Linux Servers.
• Experience in configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris and Global File System ( GFS) in Linux.
• Experience in User & Security administration, multiple backup & recovery technologies (Snapshots, Disaster Recovery plan) and maintenance of various activities.
• Expertise in configuring IPMP (IP network MultiPathing) in Solaris and Bonding in Linux.
• Capacity planning and recommending hardware for SAN (Storage Area Network) implementation and replacements.
• Experience working on Oracle Real Application Cluster (RAC) database, which provides highly available database solutions and supported MS SQL Server and DB2 teams.
• Experience on Live Upgrade, migrating from UFS root file system to ZFS file root system in Solaris.
• Involved in Data Center Migration for P2P, V2V and P2V environments.
• Storage experience in managing NAS, EMC storage arrays and Veritas Net Backup administration (VNB).
• Extensive experience in doing backup to tapes periodically using job scheduling Crontab & AT.
• Expertise in monitoring System resources and Kernel parameters to enhance the system performance.
• Extensive experience in Shell (Bourne, Korn) and knowledge of HTML, Java Scripts, SQL, Perl Scripting.
• Administering operating systems, hardware, and peripheral components, and maintain databases.
• Expertise in designing and implementing LANs, WAN services and IP Addressing schemes.
• Experience working with ITIL process (Change management, release management and problem management).
• Excellent communication, leadership, mentoring, written and problem solving skills.
• Excellent interpersonal and customer relational skills.
• Proven communication, presentation skills and leadership qualities.
• Good team player with proficiency at time management, multitasking, able to meet deadlines and handle priorities.

TECHNICAL SKILLS

Operating System: Red Hat Linux 7/6/5/4, SuSE 11/10, Solaris 10/9/8, HP-UX 11.31, 11.23, 11.11, 11.0, IBM AIX 5.x/4.3, Windows 2008/2003/2000/ NT.

Hardware: SUN Enterprise- M5000/4000, ST2540 M2, SUNFIRE X4270 M2/X4170 M2, M-Series, T-Series Servers, HP Proliant DL 380/360 G6, G5, p3440/rp7440/rp 8440 Server, SUN StorageTek Tape Auto Loaders SL48/SL24, IBM RS/6000 /S80 / M80 / H70 / H50 Series server and pSeries, HP/Dell/IBM/Sun Blade Servers..

Network/Naming Services: NFS, NIS, NIS+, DHCP, Proxy Server, DNS, LDAP.

App/Web Servers: WebLogic 11/10/9, WebSphere 8.0/7.0/6.0/5.0 , Apache 2.x/1.3x, Tomcat.

Languages: UNIX Shell Scripting, Perl Scripting, HTML, Java Script.

Third Party Software: Veritas Volume Manager(VxVM), Veritas Cluster Service, Red Hat Cluster Suite, HP Service Guard, Sun Cluster, EMC Storage, VMware ESX, RAID Technologies.

Backup Management: Veritas NetBackup 6.x/5.x/4.x, Ufsdump, Ufsrestore, tar, cpio, dd

RDBMS: Oracle 12c/11g/10g/9i/8i, MS SQL Server, My SQL

Protocols: TCP/IP,UDP, RIP, FTP, SNMP, OSPF, SMTP, TELNET,

PROFESSIONAL EXPERIENCE

Linux System Administrator

Responsibilities

• Installation, configuration and upgrade of Linux/Unix operating system.
• Building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with SystemImager that automates Linux installs.
• Registering all Linux Servers to Satellite and updating.
• Installation of Patches and Packages using Red Hat Satellite.
• Assisting in implementing a monthly RHEL patching strategy.
• Worked in server migration from P2V.
• Assisting in implementing new SSL certificates and assist in Linux IP360 score remediation .
• Working closely with staff to customize the configurations of JBoss JON (Jboss operations network).
• Communicating and transferring all knowledge to existing staff .
• Troubleshooting application problems that are discovered like log file analysis with understanding of network addressing, subnets and routing.
• Automating routine task using UNIX shell scripting .
• Working on Antivirus McAfee installation on Linux servers and making the exclusions.
• Implementing SUDO, SSH and other security tools as per department’s Linux Security Standards.
• Performing User ID creation, modification, deletion and maintain server security.
• Perform auditing on UNIX/Linux Servers for security compliance and monitoring.

Linux System Administrator

Responsibilities

• Installation, configuration and administration of Redhat/SuSE Linux and Solaris Operating System.
• Worked in server migration using P2P, V2V, and P2v conversion.
• Server hardening. Remediating PCI/Audit requirements. Server Patching. Building out VM servers.
• Opening Cases with vendors as needed. Providing Root cause analysis for problems as needed.
• Installing and configuring systems such as supports GIS infrastructure applications or Asset Management applications. Assisting in application dependency analysis.
• Moving Linux based applications to different VDC as required.
• Updating DNS entries, and server team wiki documentation as needed.
• Creating/expanding NFS shares/add/remove SAN disk/manage LVM.
• Providing on-call help as needed. Managing server inventory database.
• Installing operating systems on new hardware or virtual containers.
• Configuring external storage and system backups.
• Troubleshooting any issues that arise during the server build and performing other tasks related to delivering servers and storage in data centers.
• Using Build Center and the other Solution Suite tools.
• Responsible for VM (Windows/Linux) Build Configuration including Storage.
• Knowledge of POD (Windows/Linux) Blade Build Configuration.
• Rackmount (L-RDH)-Server Build Configuration.
• Database Solution focusing on one Lion and one SQL build.
• Knowledge of a Solution that has an ESXi Farm. Storage- NAS new/growth, SAN new/growth, and CIFS.
• Networks and Connectivity- network for BuildCenter.
• Creating a Decommission Intake. Tracking Decommission Process.
• Setup a Connection from xP SM7 to xM SM7 and Reverse

Environment: Redhat Linux 5/6/7, SuSE 10/11, Solaris 10, Windows 2008, 2012, Sun Enterprise 4500/4540/6500/450/420 R/250 server, HP PA -RISC boxes Rp8200, IBM series 670, p5 595, series, HP Blade Server C7000, BL660, BL460, Dell Blades M1000e

Sr. Unix/Linux Administrator

Responsibilities

• Installation, configuration and upgrade of Linux, Solaris, AIX, HP-UX and Windows operating system.
• Installation of Patches and Packages.
• Configuring NFS, NIS, NIS+, DNS, and disk space management on Linux/Unix servers.
• Installing and configuring Linux, Solaris, HP-UX, and AIX using kickstart, Jumpstart, Ignite and NIM.
• Worked on DataCenter Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Bringing new servers into the centralized System.
• Extensive working experience in process scheduling, disk and file system I/O, kernel internals, TCP/IP networking.
• Implemented SUDO, SSH and other security tools and security compliance.
• Involved in installation, configuration and administration of Apache Web server, BEA Web Logic and IBM Web sphere and Samba Server in UNIX, Linux and Windows environment.
• Installation and configuration of Veritas Volume Manager, Veritas File System.
• Extensive use of volume management tool using Logical Volume Manager to create disk groups.
• Installation, Configuration and Administration of High Availability using Redhat cluster and Veritas Cluster Servers for failover and redundancy purpose.
• Implemented in Red Hat Cluster Suite and Global File system, Red Hat Network Satellite Server.
• Checking the status and property info.
• Formation of hardware components during regular maintenance using hp online diagnostic utilities SFM (system fault management), STM (support tool manager).
• Created/used LDOM in Solaris 10 and installed multiple OS.
• Creating metadevices, soft partitions, mirroring the devices and metasets.
• Space allocation to the metadevices, detaching and clearing the devices if not in use.
• Performed automated installations of Operating System using Jumpstart for Solaris and kick start for Linux.
• Worked on Disaster Recovery site configuration in testing.
• Experience in Load Balance workload evenly across two or more servers , network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload.
• Configured new service group and resources for new application in Veritas Cluster Servers.
• Worked on server consolidation and migration from one data center to another data centers.
• Extensively worked in data and database migration from older machine to latest configurations.
• Configured IPMP, NIC Bonding and Storage Multipathing
• Troubleshooting various problems, logging call with vendors.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Installed and configured VMware ESXi server created VMs and deployed Linux and Windows OS on VMware based VMs.
• Worked on TRACE Action Request system for ticketing and tracking asset records.
• Involved in disaster recovery testing every quarter.
• Supported 24/7 High availability production servers.
• Participation in change control activities, involved in memory sizing of different applications.
• Complete periodic checks of production and development systems, CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc. 
• Verify successful completion of daily incremental and database backups, following developed procedures.

Environment: Solaris 8,9,10, RHEL 4, 5, 6 Windows 2003, 2008, Sun Enterprise 4500/4540/6500/450/420 R/250 server, Sun fire 6800/4800/480 , E10k/25K. Tseries, Mseries, HP Itanium, HP PA -RISC boxes Rp8200, IBM series 670, p5 595, series, HP Blade Server C7000, BL660, BL460, Dell Blades M1000e

Linux/UNIX Systems Administrator

Responsibilities

• Installation, maintenance, administration and troubleshooting of Sun Solaris, AIX, HP-UX, Linux.
• Performed automated installations of Operating System using Jumpstart for Solaris and kick start 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 party tools, securing of OS, installing and configuring, job scheduling.
• Involved in server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installation and configuration of Veritas Volume Manager, Veritas File System and Veritas Cluster Server.
• Building, installing and configuring Veritas cluster Server, Redhat Cluster and HP MC Service Guard.
• Installed the Operating System on Solaris and Linux servers and blades severs over the network.
• Built servers according to standards specified as per individual applications.
• Built virtualized Linux servers on ESX and blade servers to host multiple applications on same chassis across different server hosts.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disk.
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation.
• Set up Linux servers for LAMP implementations and readiness.
• Created file systems from local storage as well as NFS partitions for application portability.
• Architected Sun servers into different domains based on application demands.
• Applied patches and packages on Linux servers using RPM Red Hat Package Manager and YUM tools.
• Ensured automatic startup of different services by using chkconfig.
• Configured Opsware on the servers for event tracking.
• Implemented virtual, integrated, management and proxy IPs on the machines to serve different purposes.
• Experience making Kernel changes to improve system data throughput.
• Installed and configured Apache, MySQL and PHP products on the Linux servers.
• Installation & configuration of HP-UX Servers through ignite server, patch depot management for ignite server.
• Installation and configuration of Veritas Volume Manager/File System, LVM and SVM.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Involved in server migration project and migrated to VMware based virtual machines.
• Creation and scheduling of Cron Jobs, System Monitoring and removal of unnecessary files.
• Updated & Running the various source codes for migration & updating follow-up the release management.
• Configured NIS Master and Slave servers and NIS clients.

Environment: RHEL4,5,6, Solaris 8,9,10 , HP-UX 11.x, AIX 5.2, Windows 2000,2003, Sun Enterprise E 3500 450/420 R/250,M4K,M5K,M9K, T2K,T5K servers, HP Proliant-DL 360 G7, DL 380 G6 ,DL 380 G7,DL 580, IBM RS/6000 , IBM Power 570, p5 505 Express servers

System Administrator

Responsibilities

• Installation, configuration and upgrade of Solaris, AIX, HP-UX, Linux (Red hat and SuSE), Windows operating system.
• Installation, configuration and troubleshooting of VXVM under sun Solaris 8, HP-UX.
• Managed HPC cluster, performed hardware, BIOS and application upgrade.
• Configured and managed Apache web server and Managed software and hardware RAID systems.
• Managed user accounts and authentication process by NIS service.
• Managed System Firewall utilizing IP Chains, IP Tables. Implemented SSH, SSL.
• Setup and maintained DNS primary, secondary, cache-only servers, DHCP servers and DNS clients.
• Worked on incidents problem and change tickets related to AIX/Unix/Linux server.
• Managing (adding/removing) disks partitions.
• Worked on multiple accounts with Ticket assessment on daily basis.
• Administration and maintenance of WAS ND clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments.
• Developed web service integration layer for Web Sphere Portal. Install and configure Web Sphere Portal on AIX, UNIX and Windows.
• Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
• Perform auditing on UNIX/Linux Servers for security compliance and monitoring.
• Department Security Focal (Managing all the security related issues like Apars, Cirats, Health).
• Worked on security activities (QEV, Health Checks, Priv ID revalidation & PAR) as per ITCS104.
• Worked on Server commission and Decommission.
• Monitoring the System Performance and tuning the kernel to enhance system performance.
• Worked on backup issues and resolving as required.
• Job Scheduling and Automating process using CRON & AT.
• Worked on Citrix environment user management.
• Administration of Tivoli Storage manager 5.1.4 client.
• Performing User ID creation, modification, deletion and maintain server security.
• Monitoring system logs and the root's email for important messages such as errors and warnings or hardware fail errors .
• Worked on tickets troubleshoot, administer and performance tune AIX 5.1, Solaris 6, 7 and 8, Red Hat Linux 3.
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers.
• Configured and administered LPARs. Installation of patches and other software packages.
• Configuration of NIS, NIS+, DNS, NFS, Send mail, Samba, Apache for multiple environments.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.

Environment: Solaris 8,9,10, RHEL 3,4,5,AIX 5.2,5.3 HP-UX 11.x and Windows 2000/2003, Sun Enterprise Servers 6800, 4800, v480, E5500/E4500 and E3500,Veritas File System 3.0, ORACLE