Summary:

• Over 7 years of experience in technical support and maintenance of networks.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of Linux RedHat SuSE 8.0, 11 ,IBM AIX, Windows 2003 server
• Expertise in Administration of Redhat Linux 4, 5,6.
• Installation/Administration of AIX on RISC servers and Redhat Linux on HP Blade servers and DELL servers running on a LAN with full setup of network services and protocols, ensuring the proper implementation of the TCP/IP, routing, and network functionality.
• Configured Volume groups, logical volumes and file systems on Linux.
• Installation of patches, Security fixes, packages on AIX, Linux and Windows NT/2000 Servers.
• Configuration and administration of NFS. Handling Automount.
• Experienced in working with ISS, Preload and PICS.
• Configuration and administration of Fiber card Adapters and handling Linux part of SAN SAN arrays HITACHI, EMC .
• Linux-based Virtualization implementations with VMWare.
• Installed and configured IBM Web Sphere Application Server 3.5, 4.0, 5.0 on AIX.
• Performed NT and UNIX Network System Administration, including adding NT and NIS domains, creating new users and groups with multi-levels of security, creating assign file attributes permissions, defining network protocols, insuring TCP/IP and router connectivity
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Experienced in designing and implementing High Availability and Disaster Recovery solutions.
• Experienced in Configuring, testing and troubleshooting all hardware devices
• Migrating AIX OS from AIX 4.3 to 5.1,5.2and 5.3 on 520, 550, 610 ,RS/6000 Servers
• Worked with Database administrators to tune kernel for Oracle installations on Linux.
• Expertise in configuration tasks and pre-installation of RDBMS Installation including Oraclerac,10g,9i on IBM AIX and RED Hat Linux and MYSQL on Linux.
• Installation, configuration and administration of IBM WebSphere Application Server V4.0, on AIX along with DB2 UDB IBM HTTP server with SSL for secure communication providing technical support to users.
• Experienced in installing and managing Linux RedHat Enterprise and UNIX HP-UX systems.
• Experience in creating and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and HP-UX.
• Management of RedHat Linux and HP-UX user accounts, groups, directories and file permissions.
• Disk Space management using VERITAS Volume Manager.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Sendmail in RedHat Linux and HP-UX.
• Configuration and Maintenance of AutoFs in Linux and HP-UX
• Day to day Linux and HP-UX server hardware support, problem and change ticket implementations, composing scripts, OS builds upgrades along with day-to-day Storage UNIX Administration.
• 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.
• JBoss including installation, configuration, management and troubleshooting.
• Expert in Installing, configuring and maintaining apache/tomcat, samba send mail, Web Sphere Application Servers.
• Worked exclusively in configuration management using Puppet ,chef tools
• 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 3.x,4.x,5.x Apache Server 1.x,2.x.
• Current, enterprise-class Infrastructure/System Engineering experience with UNIX/Linux systems utilizing NAS and SAN attached storage
• Experienced in management of user and group on UNIX operating systems Linux, Solaris, Aix
• Experienced with IT General Controls ITGC and Baseline Security Configurations BSC ..
• Experienced in implementing the workload Management WLM using cloning and clustering.
• Experienced in writing scripts such as Korn Shell, Perl and shell.
• Experienced in DNS, NIS, NFS, LDAP, send mail, ftp, remote access, security management, and system troubleshooting skills.
• Ability to resolve issues quickly, able to identify tasks which should be automated and then write scripts to automate them.
• Excellent client relation skills and the drive to complete tasks effectively and efficiently where customer services and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community

TECHNICAL SKILLS:

RedHat Linux Engineer

• Installed and configured Red Hat Enterprise Linux 6.x, and IBM AIX 5L 5.x operating systems on large distributed environment.
• Provided administration and support for Servers running on Red Hat Enterprise Linux 5.x/6.x and Sun Solaris 9, 10 operating systems.
• Supported virtual machines in Private cloud Environments.
• Installed Red Hat Enterprise Linux 6.x over the network using Kick start.
• Performed Server consolidation and virtualization using VMware virtual infrastructure that includes VMware ESX, VMware Virtual Center and Virtual SMP.
• Performed System Backup using Veratis Netback up for Enterprise wide backup and recovery and to centrally manage storage resources through a single console
• Monitored the daily backup activities, Responsible for rotation of the media to the offsite vendor and maintained offset backup for recovery in case of a system crash.
• Backup and restoration of Database servers using SQL scripts.
• Configured networking services such as DNS, SSH, DHCP and printer services in Red Hat Linux servers.
• Implemented and monitored clustering on IBM p series servers using HACMP 5.2.
• Applied new patches and packages for Sun Solaris and Red Hat Linux Servers and handled issues arising out of them.
• Maintained availability, increased capacity and performance of production machines by upgrading their hardware and firmware.
• Attached LUNS provided by the Storage team to the required Unix/Linux Servers.
• Creating volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management LVM commands.
• Implemented Web Application Servers like Oracle Web Logic in Red Hat Linux environment respectively.
• Monitored failovers in HACMP cluster environment.
• Created users, enabled user permissions and maintained User Group quotas on Solaris and Linux servers.
• Wrote Shell scripts to automate the administrative tasks using corn.
• Tuning the kernel parameters based on the application/database requirement.
• Troubleshooting performance issues in IBM AIX and Red Hat Linux servers.
• Created project report and wrote technical document for various projects.
• Responsible for the build out of the network infrastructure required for the testing and deployment of each POD Performance Optimized Data Center .
• Temporary cabling and deployment of network switches to rack within POD.
• Base configuration of networking equipment Cisco Switches and modifications throughout the process.
• Create network VLAN, WAN, Routing, Switching, Troubleshooting.
• Memory stick network based Linux OS loads on servers. Including PXE boot.
• Created DHCP and TFTP servers to assign IPs to all servers and upload required files using TFTP servers.
• Build multiple servers from kickstart, ISO images, scripts: shell, ksh, csh, bash, Perl.
• Write and troubleshoot scripts to automate system administration tasks.
• Handle work requests from multiple customers and deliver in a timely manner.
• Plan, coordinate, and implement security measures according to corporate standards.
• Provide advanced troubleshooting and mentoring to system administrators.
• Develop standards and guidelines for the use of RHEL servers in the data center.

Environment: Operating System: Red Hat Enterprise Linux 5.x/6.x, Solaris 9, 10, IBM AIX 6L/5L 5.x,, Dell Poweredge servers, HP Servers DL380, DL580, Sun V440, V480, Oracle 11g, Oracle WebLogic, Red Hat JBoss, VMWare ESXi, Veritas NetBackup, Logical Volume Manager Red Hat Linux , Microsoft Office Visio, VMware Infrastructure client, LDAP, NFS, Citrix, Remedy, ISIS, SAS, Kronos, Eminentware, SCCM

Confidential

Unix/Linux System Administrator

• Installation, configuration and OS upgrades on Red Hat Enterprise Linux 5, 6 AIX 5.3/6.1, Oracle Enterprise Linux 5.5
• Configuring Kickstart Servers and booting the images using PXE in Redhat Enterprise Linux.
• Installed OS by using Kickstart, and NIM methods
• Managed and configured hundreds of servers using Puppet.
• Installation of patches and other software packages on OEL 5.5 Servers.
• Responsible for the VM configuration file changes and creation of block devices on Netapp which are mounted on physical server by NFS file system. Monitored the memory and VCPUs allocation to each virtual machine as per the requirements of Oracle DBA team and Application team.
• Configuration of network-interfaces on both physical machines and virtual machines and verification of network service with fail-over concept.
• Experienced in importing the both physical and virtual machines into Oracle Virtual Machine Manager. Live Migrated VMs from one physical to another physical server using OVM manager.
• Created RAID 0 1 and RAID 1 Storage Systems on physicals using Oracle Virtual Machine 2.2.1 Operating System.
• Configure HACMP for a clustering environment on AIX servers and administered the virtualization environments consisting VIO servers.
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting.
• Responsible for Migration of servers from AIX 5.2 to AIX 5.3.
• Responsible for migrating UNIX/Linux servers to modern virtual environments using products like VM converter 3.0.1.
• Experiencing in migrating physical and virtual source machines with a command line interface
• configure management using Puppet ,chef tools
• Administered Linux servers for several functions including managing Apache/Tomcat server.
• Experienced in designing and implementing High Availability and Disaster Recovery solutions.
• Management of user and group on UNIX operating systems Linux, Solaris, Aix
• Use ILO/IVM/HMC for remote access of servers on Linux/AIX respectively.
• Implemented and configured Backup policies and Storage Units using Symantec Netbackup 7.1. Monitored system resources, logs, disk usage, scheduling backups and restore activities on netbackup from both CLI and GUI. Responsible for starting and stopping netbackup service whenever there is a scheduled maintenance window. Performed Tape Media loading operations on spectralogic T120.
• Worked with SAN administrator in assigning Netapp storage to a new Oracle instance request.
• Configuration and maintenance of DNS, NIS , LDAP on Sun Solaris 10 servers.
• Registered both physical and virtual machines with RHN to get the latest patches.
• Created partitioning for Hard Disks and made ext2/ext3/ocfs2/nfs file systems on both physical and virtual machines.
• Created general administrative scripts using bash/Perl .
• Monitored servers, switches, ports etc with Nagios monitoring tool. Made changes to the configuration files on client servers and host server.
• Tuning the kernel parameters based on the application/database requirement.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Performed team maintenance duties by creating and closing tickets in HP OVSC.
• Administration of Mailman application by creating/deleting a mail-list. Monitored user access by adding/deleting their accounts and changing the passwords for a specific mail-list.
• Maintained Domain Name Server DNS by adding and deleting the host name and IP address as per the user request.
• Installing and configuring Linux services to a network attached printer.
• Created Process Change Control Tracking tickets to get approval from the infrastructure director and all teams to implement the Change Request and notifying the break fix issues in the environment to everyone.
• Worked with network team to assign the IP address for new physicals and virtual servers.
• Performed general administration tasks like adding users, FTP accounts creation, file ownership changes, symbolic links creation and labeling the disks.

Environment: Red Hat Enterprise Linux 5, IBM AIX 5.3/6.1, HP Proliant DL785-G6 G7, DELL Poweredge 2850,2950 Servers, IBM Power 755/770, OVM 2.2.1, OEL 5.5, Sun Fire V280,V480R, Oracle Virtual Machine Manager, HP Open View Service Center OVSC , Mailman, Weblogic 8.1, Oracle 11i, R12, HP-UX, Symantec Netbackup 7.1, Oracle 9i/10g, Samba Nagios 3.2.3, Cacti, ILO 2 3, IVM, HMC, Windows 2000/2003/2008 Server, LAN, SAN, NAS, NFS, DNS, Tomcat, Apache Server, Shell Scripting.

Confidential

System Administrator

Responsibilities:

• Administered, maintained Red Hat 3.0, 4.0, 5.0, 6.0 AS, ES, Troubleshooting Hardware, Operating System Application Network problems and performance issues Deployed latest patches for, Linux and Application servers, Performed Red Hat Linux Kernel Tuning.
• Installation, Configuration and Administration of AIX 4.3.3, 5.1 HACMP 4.4.
• Upgraded AIX 4.3x to AIX 5L v5.1, 5.2, 5.3.
• Responsible for Migration of servers from AIX 5.2 to AIX 5.3.
• Experience in implementing and configuring network services such as HTTP, DHCP, and TFTP.
• Installation configuration and maintenance of Highly Available Cluster Multi Processing HACMP .
• Experience in Migration of HACMP 4.3.1,4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup
• Installation and upgrade of HPUX 10.x to 11.x.
• Install and configure DHCP, DNS BIND, MS , web Apache, IIS , mail SMTP, IMAP, POP3 , and file servers on AIX and Linux servers.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting.
• Experienced working with Preload Assist and PICS projects.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Migrated database applications from Windows 2000 Server to Linux server.
• Implementation of Samba to help printing and file sharing in the mixed Environment.
• Installing and setting up Oracle9i on Linux for the development team.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Administered and Developed MQ V5.3, V6.0 MQSeries .
• Designed and implemented DB2 connect.
• Implemented Virtualization using VMWare in Linux on HP-DL585.
• Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Created users, manage user permissions, maintain User File System quota on Redhat Linux and AIX.
• Configured and administrated Lpars/DLparss.
• Data Warehousing and System Backup using tar, cpio for local systems and Symantec Netbackup for enterprise wide backup and recovery
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series.
• Setup network printers and installed client/server applications. Define/setup network protocols, Network File Services NFS , and Network Information Services NIS in Linux and AIX systems.
• Network trouble shooting using ndd, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Performing upgrades of OS and applications.
• Provided support by 24x7 shift rotation basis and pager support
• Diagnosed hardware and software problems and provided solution to them
• Monitored trouble ticket queue to attend user and system calls
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• Updated data in inventory management package for Software and Hardware products.
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.

Environment: Red Hat Linux 3.0,4.0,5.0 AS ES, AIX 4.3,5.1,5.2,5.3, HP-DL585,HACMP 4.2.x,4.3,4.3.1,4.4 , HP-UX, Symantec Netbackup 6.5, Oracle 9i/10g, Samba, NT/2000 Server, Web Logic 8.1,DB2 Connect, VMware 2.x, LPAR, DLPAR , PICS, Preload Assist, Tomcat 3.x,4.x,5.x, Apache Server 1.x,2.x, MQ V5.3, V6.0,DB2 Connect, Korn, Confidential

Linux Engineer

Responsibilities:

• Performing the AIX systems administration, installation, troubleshooting, and customization of AIX 5.1,5.2 machines on pSeries 615, 630, 670 servers, including clustered SP servers. The entire environment included around 40 AIX Servers and 60 additional servers.
• Responsible for Migration of servers from AIX 5.2 to AIX 5.3.
• System backup management using Symantec Netbackup Server.
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Installation of Red hat Linux on Dell, Proliant, and Enterprise Server 4.0.
• Installation of web logic, upgraded to service pack updates, installed BEA patches, configuring and creation new domain services starting stopping. Installation of Oracle10g on Linux, creating database, creating Oracle users export and importing database, creating roleback segment etc.
• Setup and administration of Lab environment within the datacenter.
• Responsible for Implementing Cloning, Clustering VCS , Performance tuning and trouble shooting of IBM WebSphere Application Server.
• Performed WebSphere MQ Messaging administration, monitoring, management and support for AIX and Windows environments.
• AIX systems administration and Disk Management using SMIT.
• Experience in LVM, Kernel and performance tuning on IBM AIX and Redhat Linux.
• Installation and Administration of TIVOLI Service Desk.
• Managed hardware in IBM P-series servers using hot-pluggable devices.
• Managing cron jobs, batch processing and job scheduling.
• Software installation and maintenance on AIX and Linux servers.
• developing and testing a new tcpwrappers package
• Configuring and Administrating of AIX HACMP clusters.
• Tune servers and support Oracle DBAs with installation and Configuration.
• Security, users and groups administration on AIX and Linux.
• Networking service, performance, and resource monitoring
• Performance monitoring with Sar,Iostat,VMstat,MPstat and Other Tools
• Network Monitoring Using Nagios tool.
• Daily backup and restore operations.
• Completed a full migration of UNIX Server AIX and Linux , including all network services.
• Review Design Documentation confirming to Software Requirements
• Systems administrator providing support for production and development systems. Environment consisted of multiple IBM RS/6000s SP, R-series and X-Window terminals
• Used perl v5 for systems tasks as well as C and Korn shell scripting.
• Other standard system administration tasks performed, such as system monitoring, performance usage, network support, and user support.

Environment: Red Hat Enterprise Linux 3.0,4.0,5.0, IBM AIX 4.3.3, 5.1, 5.2, with HACMP 4.3.1 and 4.5, HP-UX, symanteNetbackup 6.0, Web Logic 8.1, Oracle 9i/10g,WebSphere Application Server 3.5/4.0.x, MQ V5.3, V6.0,Tivoli Storage Manager 5.x,Cron,Batch,Nagios 2.x , C, Korn.

Confidential

Linux Administrator

Responsibilities:-

• Provided troubleshooting support for development, test, and production environments for UNIX and Linux servers.
• Performed installation, configuration, and upgrades primarily on Red Hat Linux AS 3.0, AS 4.0. and Sun Solaris 9, 10.
• Installation, configuration administration of Red Hat Enterprise Linux 4.x/5.x AIX 5.1/5.2 servers.
• Maintained SUSE Enterprise Linux 9 servers in development, test and Production environments and proactively monitored and administered production and development servers.
• Analyzed system performance, client-to-server traffic, and server-to-server traffic.
• Monitored file system space using simple shell scripts resize file systems as and when required.
• Managing Sun, Compaq and Linux workstations and servers.
• Disk and File system management through Solstice Disk Suite on Solaris and other logical volume manager for other flavor of UNIX.
• Configured Hardware and Software RAID on Digital Sun Servers
• Installation of Oracle patches and troubleshooting, creating and modifying application related objects, creating profiles, users, roles and maintaining system security.
• Performed installation, periodic maintenance updates and applied APAR fixes on Linux and AIX servers.
• Managed nodes running under SAN environment through HACMP.
• Troubleshoot hardware, software and operating system related errors on Linux and UNIX.
• Troubleshooting AIX/Linux network problems.
• Performing Failovers in HACMP cluster environment, monitoring servers.
• Experienced in creating Logical Partitions LPAR on Tivoli Storage
• Configured clustering by using Veritas Clustering VCS .
• Created users, manage user permissions, maintain User File system quota on Solaris and Linux servers.
• Backup configuration using Symantec Netbackup.
• Upgraded Red Hat Linux OS on Websphere, JBOSS and Oracle database servers from V3, V4 to V5.
• Implemented and administered Single Sign On using Active Directory and Open LDAP for Windows and UNIX platform.
• Installation of Oracle 10G RAC with Cluster Ready Services CRS on Linux, creating database, creating Oracle users export and importing database, creating role back segment etc.
• Monitored servers, switches, ports etc with Nagiosmonitoring tool.
• Experience in LVM, Kernel and performance tuning on IBM AIX and Red Hat Linux.
• Wrote Shell scripts to automate the administrative tasks using cron.
• Defined and setup Network/Local printers, and install client/server applications.
• Define/setup network protocols, Network File Services NFS and Network Information Services NIS on Linux servers.
• Performed security, users, groups administration and daily backup and restore operations, networking service, performance, and resource monitoring.
• Documented and maintained the inventory using asset management techniques.

Environment: Red Hat 3.x, 4.x, 5.x, IBM AIX 5.1, 5.2, Solaris 8,9,10, SLES 9, 10, HPUX 10.x, 11.x, RS/6000, X86, IBM P570, P590, HACMP 4.3.1 and 4.5, Symantec Netbackup 6.0 WebSphere Application Server 3.5/4.0.x, Single Sign On, JBOSS, LDAP, DNS, NIM, NFS, TCP/IP, SAN, NAS, Nagios 2.x, WebLogic 8.1, Oracle 9i/10g, Tivoli Storage Manager 5.x, VMware 2.x, Shell Scripting.