SUMMARY

• Over 6 years of extensive experience in Installation, Configuration, Upgrading, Support, and Maintenance of various Linux flavors like RHEL, SUSE, CentOS, Debian, GNU, Ubuntu, Unix flavors like Sun Solaris, IBM AIX and Windows Servers.
• Installed, upgraded and configured SUN Solaris 7, 8, 9 and 10 on Sun Servers Using Jumpstart Servers and Interactive Installation.
• Worked on the monitoring tool using IBM Tivoli. Troubleshoot and Configured using Nagios, IBM trivoli tools.
• Proficient in Installation, configuration, maintenance of open LDAP server and application integrated with Apache Web server and Postfix mail server for user authentication.
• Configured Jumpstart for automatic installation of VERITAS foundation suite and encapsulation of boot disk.
• Installed and setup the Policies in Veritas Netbackup and setup the Netbackup Master, Media and clients.
• Implemented day - to-day tasks in RedHat Linux include upgrading RPMS, kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Experienced in supporting database systems including Oracle, MySQL, PostgreSQL on Linux and Solaris Environment.
• Configuration and administration of Fiber card Adapter’s and handling of SAN (SAN arrays HITACHI, EMC).
• Good experience in installing configuring and maintenance of Veritas Cluster Manager.
• Installed, configured and maintained HP-UX 10.x/11.x.
• Experienced in configuration of DNS, NIS, NFS, LDAP, SAMBA, Sendmail, FTP, remote access on Linux and Solaris.
• Troubleshooting and monitoring performance issues in Clariion storage systems using EMC Navisphere Analyzer.
• Installed, configured Puppet and Chef
• Expertise in Veritas and Tivoli net backup tools. Also experience with Disaster Recovery.
• Experience in EMC CLARiiON SAN, NAS, and DAS installed & configured, implemented clustering, high availability (HA), and Fail over.
• Upgraded the operating system on the domains to Solaris 8 releases 2/02 to enable dynamic reconfiguration.
• Development and delivery of production support technical issues
• Installed and configured Oracle RAC 11g on RedHat Linux cluster nodes
• Expertise in Installing, configuring and maintaining Veritas Volume Manager, Veritas Net backup, Veritas Cluster server and Sun-Cluster server.
• Knowledgeable in Virtual servers including VMware ESX server and Xen.
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy using. Veritas Volume Manager and Veritas File System on Sun Solaris.
• Performed Scripting for automation, Expertise in utility and monitoring using Shell & Perl scripts.
• Provisioned Storage for Solaris host environments from Clariion series CX 380/700/600 storage systems with Fiber channel drives for production.
• Experienced in remote network installations like KickStart & Jumpstart.
• Handled routine maintenance with latest Security updates and software update.
• Installed and configured Ignite on Linux and UNIX machines.
• Great communication skills, wonderful team leader and awesome team player.

TECHNICAL SKILLS

Operating Systems: Linux - Red Hat, Fedora, SUSE, Debian, Ubuntu, CentOS, Unix - IBM-AIX, Sun Solaris, and HP-UX Windows - NT/ 2000/2003/2007 Server/XP Pro/Vista/7

Languages: Shell, Perl, Python Scripts, Cobol, C, C++, Visual Basic, Java, J2EE

Databases: Oracle 8i/9i/10g/11g, MySQL (phpMyAdmin), PostgreSQL (phpPgAdmin)

Mail Servers: Postfix, Dovecot IMAP, SASL, PostgreSQL (Virtual mail box), Ruby on Rails

Web Server: Apache2/Tomcat, JBoss, IBM-Web sphere, Weblogic

Hardware: IBM RS/6000, pSeries, HP Server 9000/800 Series, Workstations 700 series, Dell Power Edge 1300/1500/6650/2650/2950 Servers, Rack servers, Infotrend Eonstor DAS, EMC CLARiiON SAN, NAS Storage Box, Supermicro 6015B-3R & 8045C-3R, F5 system, Cisco MDS 9000 SAN switch, HP Blade

Virtual Server: VMware ESX 3.5.0 Server, VMware Infrastructure Client 2.5 & Xen 3.2

Other tools: Eclipse, Nagios, IPMI, CUPS, DNS(BIND), CA (spectrum), DHCP, Samba, Firewall (Squid, IPTables), FTP, NFS, NIS, KickStart, rsync, SAS ODBC, VERITAS Netbackup 5.1/6.5.3, TOAD, SSH, Cronjob, openLDAP, Bugzilla, RAID, SVN, CVS

PROFESSIONAL EXPERIENCE

Confidential, Riverwoods, IL

Linux System Engineer

Responsibilities:

• Performed installation, configuration and maintenance of Redhat Linux 4.x/ 5.x/6.x
• Installation, configuration and Operating System upgrade on Sun Solaris 8,9,10, on sun Servers
• Also excelled on Linux kernel, memory upgrades, and swap area. Redhat Linux Kickstart Installation. Configuring DNS, DHCP, NIS, NFS in Redhat Linux other Network Services.
• Performed daily backups, restoration of data as per requests from developers using Veritas Netbackup.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems
• Experience in Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX.
• Wrote Shell Scripts as cron jobs and deployment scripts for various reasons.Migration from Redhat to Solaris. Experienced using Ruby and Python.
• Provide support for testing, system integration, installation scripts and other duties to support systems and network infrastructure
• Mounted Disks allocated from the SAN (Clarion) for Linux and Solaris servers. Installed new and removed bad HBA cards from the server. Moved the Volumes from CX600 to CX700 to increase storage capacity.
• Provided application support for Weblogic application srvers as required.
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Installed of all the required Software, patches, documentation, licensing trouble shooting.
• Troubleshoot network & DNS issues and handled VERITAS Netbackup server & client connectivity problems.
• Customized, configured TCP stack
• Monitored overall system performance, performed user management, system updates and disk & storage management.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux and Solaris.
• Experience working in the LAMP environment.
• Used automation tools Puppet, chef
• Production support of Apache and JBoss including installation, configuration, management and troubleshooting
• Setup of full networking services and protocols on UNIX including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, kickstart and print servers to insure optimal networking, application, and printing functionality.
• Installed and configured Sudo for users to access the root privileges.
• Used Zone Configuration in solaris10 boxes. Used zoneadm utility to create and maintain the zones. Created many number of zones under the Global zone and setup network for the zones.
• Wrote Technical documentation for various projects and worked with Technical writer to finalize the documents.

Environment: Solaris 8,9,10, Redhat Linux 4.x,5.x,6.x VMware ESX Server 3.5.0, JBOSS, Remedy, EMC Power Path, windows 2003/2007/XP/VISTA/7, Solstice Disk Suite, AIX 6.1, 5.3, Veritas Cluster Server, Enterprise Security Manager, Opsware, Weblogic 8.1, Oracle 10g/11g.

Confidential, Denver, CO

Linux System Engineer

Responsibilities:

• Responsible for installation, configuration, and administration of Red Hat Linux, SUSE, Ubuntu,Solaris systems.
• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP Proliant BL465/BL685 & Integrity Itanium2 platforms on RHEL 4 & 5.
• Expanded the environment from 128 to over 280 systems over the course of 12 months.
• Setup and maintained NFS, NIS, and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat/UNIX hosts.
• Maintained network and data security, maintained security compliance policies on the OS for SOX and internal audits.
• Ensure production systems are reliable and perform well
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Integrated the Linux environment with Active Directory providing a Single Sign On (SSO) solution.
• Using rsyslog & mysql, deployed a custom syslog reporting solution for system alerts and notifications.
• Deployed Redhat Satellite Server with custom repositories to provide a stable management solution for the Linux environment. Migration from SUSE linux to Ubuntu.
• Experience with Jumpstart & Kickstart Installations on Solaris & Linux
• Installed, maintained and finetuned the Apache-Tomcat serverand Websphere Application Server in Linux Platform
• Created Bash/Korn shell scripts to monitor system resources and system maintenance.
• Wrote Perl and Python scripts to generate statistics and monitor processes.
• Deployed Active/Active MySQL clusters using Redhat Cluster Suite for supporting internal applications built on the LAMP stack.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Ruby, Python, Shell, and Perl scripts.
• Installed, configured & upgraded Websphere and provided extensive support in code deploy, change management and application level troubleshooting for the Dev, Test, Pre-Prod & Production environment. Deployed applications (EAR/WAR) files on multiple Servers/Clusters and maintained Load balancing, used puppet and chef for automation
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linux servers

Environment: Red Hat Enterprise Linux 4.x,5.x, Sun Solaris 8,9,10, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, HP UX, IBM AIX, HP Proliant DL 385, 585 Weblogic, Oracle RAC/ASM, MS Windows 2003 server.

Confidential, Green Bay WI

Linux Administrator

Responsibilities:

• Worked in Datacenter Lab1 managed 200 server nodes.
• Installed SUN OS versions 2.8, 2.9 on Ultra 5, 280R, E450, E6800, E12K production servers
• Compiled, Built and Installed PostgreSQL database 8.3.1 and written shell script for startup in SUSE Enterprise Linux 10sp1 Supermicro dedicated server 6015B-3R for Fortress platform development Lab, app and QA team.
• Responsible for providing technical assistance and support related to operating systems SUSE and Ubuntu along with hardware and application installation and support.
• Setting up of Jumpstart server for OS images Patches and updating servers.
• Implemented new 2.5-Terabyte (CX300 Device) SAN-based file storage with minimal site downtime. Scheduling, running, monitoring and troubleshooting backup for Servers and SAN using the tools Veritas Backup Exec, VERITAS Net Backup.
• Installed and Configured system network monitoring tool used Nagios, IBM Tivoli, CA spectrum and trouble-shooted virtual machine issues.
• Wrote backup and maintenance scripts for maintenance of MySQL servers in the environment.
• Provided On call support for Linux, Legato network and HP-UX production servers.
• Maintained 15 VMware ESX server connected with two EMC CLARiiON SAN box and managed of two Cisco MDS 9000 switch using Fabric & Device management tool.
• Configured NIS Master and Slave servers in Solaris, created NIS users and updated their privileges in the NIS maps.
• Installed, Configured tested and documented SAN Copy procedure to migrate data from DMX to Clariion and Clariion to DMX for windows and Solaris operating system.
• Designed, installed and managed a cluster of Linux workstations. This included NIS/NFS, software and hardware upgrades, backup operations and internal web services
• Installed and configured veritas cluster manager.
• Oracle installation & system level support to clients.
• Written shell scripts to automate the administrative tasks using cron, Batch and at in Linux.
• Logging events and forcing crash dumps, securing servers and troubleshooting issues.
• Configured Virtual disk RAID 0, and RAID 1 in Supermicro server 8045C-3R.
• SAS controller firmware and new BIOS updated in Supermicro server for VMware ESX server installation.
• Configured IP chains and IP tables to provide the packet filtering and firewall security to Linux Boxes. Configured TCP Wrappers in Linux and Solaris boxes that allow and block the hosts in to the server.

Environment: Red Hat Enterprises Linux, SuSE Enterprise Linux, Debian GNU Sarge & etch, CentOS, Apache, Windows 2003/XP, JBoss, Tomcat, SVN subsystems, PostgreSQL, MySQL, Media Wiki, Bugzilla, Supermicro & Dell Servers, AIX, F5, VMware ESX Server 3.0.1 & 3.5.0.

Confidential, Monroe, LA

Linux/Unix System Administrator

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Maintained and monitored all of company\'s servers' operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Attended calls related to customer queries and complaints, offered solutions to them.
• Worked with monitoring tools such as Nagios and HP Openview.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Managed and upgraded UNIX's server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Installed, configured Puppet and Chef for automation
• Supported the backup environments running VERITAS Net Backup 6.5.
• Responsible for setting cron jobs on the servers.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports.
• Configuration and troubleshooting - LAN and TCP/IP issues.

Environment: Red Hat Enterprise Linux 4.x, 5.x, Sun Solaris 8, 9, 10, VERITAS Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential, Grand Rapids, MI

Linux System Administrator

Responsibilities:

• Installation of Sun E250, E450, Sun E3000, SunFire v440/v480/v490 with Solaris 8/9. Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configure Winbindon all Linux workstations, which enables all the Linux users to be authenticated on MicrosoftWindows 2000 and 2003 Active Directory Server.
• Perform Microsoft Exchange maintenance tasks such as mailbox cleanup, archiving and user creations.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers\' activity on a continuous basis.
• Worked with DR tests of UNIX (Solaris & Linux), Oracle, DB2& Sybase databases, Peoplesoft/SAP, FOBOCA, Securities & Trading Apps and whole UNIX infrastructure.R1/R2 mappings, DNS/LAM changes.
• UsedRPMsto install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• SetupEMC HBA fiber cardsand storage frames forDB2, Oracle and Sybase databases.
• Responsible forDNSand Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Responsible for Day to Day Backup and Recovery using tar, using and ufsdump on solaris 8 & 9.
• Performed disk mirroring using SDS 4.1, 4.2(Solstice Disksuite).
• Managed sharedNFSfiles system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Managed Cluster of Linux Servers usingGFS.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze. Created new slices, mounted new file systems and unmounted file systems.
• Implemented System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and back up the data using BACKUP devices.
• Validate daily tape backups. Assist in the migration of the backup infrastructure fromLegato Networker to Symantec Backup Exec.
• User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
• Installed and ConfiguredApache Web Server.
• ImplementedBug tracking system using bugzillaand Performed problem determination and restored service using standard procedures.
• Security measures blocking unnecessary ports and restricting user’s remote logins.
• Configuration and troubleshooting -LAN and TCP/IP issues, Weblogic.
• Monitor bad user logins and unauthorized users, frequently changing the root password for security.

Environment: Sun Solaris 9/8,Linux, BEA Web Logic 8.1,Apache web server, Sun E250, E450, Sun E3000, SunFire v440/v480/v490, Sun Sparc 20/10/5,Legato networker, ORACLE 9, C, EMC CLARiiON, Solstice Disksuite,, Cisco switches & routers, VLAN, Winbind