SUMMARY

• 8+ Extensive experience in installing, maintaining and troubleshooting Redhat Linux, Solaris, AIX, HP - UX, Cent OS and knowledgeable in computer hardware servers and various devices.
• Experience in Installing, upgrading and configuring Redhat Linux 3.x, 4.x, 5.x using Kickstart Servers, Solaris 8, 9, 10 using Jumpstart Servers and Interactive Installation.
• Extensively worked on different tools like Veritas Volume Manager, Veritas File System, Veritas Cluster, and Veritas Net Backup.
• Extensively worked on TCP/IP networks, Win NT (WINS/DNS/DHCP), UNIX (NIS, NFS, SSH & Samba), LAN/WAN Technology, messaging services and Internet Services (DNS, SMTP, POP3/IMAP4, Send mail, Web, Proxy, Radius).
• Developed shell scripts (Korn, C Shell), Oracle, SQL Server, PL/SQL, PERL, and Java Script.
• Expertise in various administrative tasks on Sun Fire E6800, E10K, E15k, and E25k Servers. Experienced in setting up Sun hardware and Storage devices like EMC Symmetrix, DMX and Clarion.
• Installed Solaris 10 on Sun Fire 280R, V240, V440, V480R Sun Fire E2900, Sun Fire V1280 Production Servers.
• Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, ftp, remote access, security management and Security trouble shooting skills.
• Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience in Sun Solaris 10(Creation of Zones, Service Management Facilities, Virtualization, Container based).
• Installed and Configured WebLogic 10.3 on various Development and Production Boxes.
• Created Domains, Servers, and Clusters by using WebLogic Administration Console on various Production Servers.
• Installed and configured Emulex LP9002S-E, LP10000CXDC-E HBAs on Sun Enterprise 4500, 6500, Sun Fire E6800, Sun Fire E15K, and Sun Fire E25K.
• Experience in Oracle 9i RAC and Oracle 10g RAC Installation and Configuration.
• Competent in troubleshooting a broad range of hardware issues.
• Extensive experience in the Managed Hosting Industry as well as the Managed Security Services industry.

TECHNICAL SKILLS

Operating Systems: RHEL 3/4/5, Solaris Release 2.10/2.9/2.8/2.7 , IBM-AIX 5.X, Windows 98, Windows 2000 and NT.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra’s, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra-Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas Netbackup 6.0, MS-Office/MS-Project, Puppet.

Web/ Application Server: Tomcat, Apache DB2, Oracle.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Python

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Unix/Linux Systems Administrator

Responsibilities:

• Installation, Configuration and Administration of Redhat Linux 5.x, OEL 5.x, Solaris 10 comprising of testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installed and configured Solaris servers using Jumpstart, configured/maintained Zones, LDOMs, ZFS pools on Sun Solaris 10 Servers.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 6.0 and migrating servers between ESX hosts.
• Experienced in working wif Perl, shell scripting (ksh, bash) to automate administration tasks.
• Configuring multipath, Powerpath, adding SAN, creating physical volumes, volume groups, and logical volumes.
• Adding policies, packages, patches to servers using HP Opsware.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment.
• 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.
• Attaching NFS filesystems exported from Netapp Servers me.e. NAS filers.
• Designing Firewall rules for new servers to enable communication wif application, Oracle 11g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc.) and tuned me/O, memory, etc.
• Installation and configuration Veritas NetBackup 7.1 on Sun/Linux Severs and performing backup.
• Managed Veritas Cluster Server 5.5 on Sun/Linux servers performing manual failover, adding resources, service groups.
• Installed and configured Weblogic 10.x, Oracle 10g, 11i on Solaris and Linux servers.
• Installed, prepped servers for Oracle RAC 10g installation, configuration which includes package installations, tuning kernel parameter, adding SAN/NAS.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
• Worked on Openstack (Havana), creating VMs, security groups, adding resources.
• Coordinated wif the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C 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.
• Developed automated processes dat run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.
• Implementation, testing and verification of disaster recovery plan and Backups.

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 486 G6, BL 465/485,ML Series, 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, Gaithersburg, MD

Unix/Linux Systems Administrator

Responsibilities:

• Installation and administration of RHEL 5.x, Cent OS 5 on both HP and IBM Blade and standalone servers.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installed and configured Veritas Volume Manager 4.1, Veritas File System 4.1 and Veritas Cluster Server 4.1 on Sun Fire V1280, E2900, E6900, and E25K Production Boxes.
• Installed and configured Veritas Storage Foundation Suite on HP Proliant DL series production boxes.
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Worked on Puppet which includes installation, configuration of Puppet, creating puppet profiles, manifests, modules and push them across servers.
• Installed SUN OS versions 2.9, 2.10 on Sun Fire V1280, E2900 Production servers
• Installed and configured Power Path 4.5 on Sun Enterprise Ultra E450, V880, V1280, E2900, E6900 and E25K Domain Boxes.
• Worked wif Veritas NetBackup 5.0 on production servers E6900 and E25K.
• Installed Solaris 10 on Sun Fire 280R, V240, V440, V480R Sun Fire E2900, Sun Fire V1280 Production Servers.
• Configured Oracle ASM on Redhat 5.x servers, created raw devices for Oracle DBAs.
• Created Global and Non-Global Zones on Sun Fire 280R, E2900, V1280, E6900 Production Boxes.
• Installed and Configured WebLogic 8.1 on various Development and Production Boxes.
• Created Domains, Servers, and Clusters by using WebLogic Administration Console on various Production Servers.
• Installed and Configured Emulex (lpfc) LP10000, Qlogic qlc2300, HBAs on various HP Proliant DL servers.
• Troubleshooted various problems when working wif VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Worked in 24X7 supports in Production and development environments.

Environment: Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Puppet, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential, Conway, AR

Unix/Linux Administrator

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• 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.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers wif Zones and containers wif Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Assisted in configuring the application servers wif other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• 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 Veritas NetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore wif 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 wif other IT teams, customers (users), and other managers in halping 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, Veritas NetBackup, 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, Katy, TX

Unix Systems Administrator

Responsibilities:

• Installed RHEL 3.0/4.0 and Suse 10.x using kickstart/autoyast and custom building the servers per Statement of Work.
• Installed Solaris 2.6, 2.7, and installed patches and packages on SUN Enterprise 6500, 4500, 420, Ultra 2 Servers.
• Installed/configured EMC Storagewif 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.
• Maintain file system disk space.
• 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 msmail accounts.
• 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 Veritas NetBackup 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: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, 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

Systems Administrator

Responsibilities:

• Installations of Oracle databases on Solaris and windows operating systems.
• Creating domains on E6800, E10K, E15k, and E25K on sun high end servers.
• Data Migration from one symmetrix11 Boxes to DMX14 Boxes on E15K and E25K sun high end servers.
• Installed different patches on E10K, E15K, E25K sun servers.
• Developed perl Scripts for scheduling jobs.
• Installed Sun OS versions 2.7, 2.8 on Sun FireV240, Sun Fire V280R, V440, V480, Sun Enterprise 3500, and Sun Enterprise 350.
• Configured different network services like DNS, NFS, NIS, SAMBA, Apache on Sun Enterprise 3500 and Sun Enterprise 350.
• Installed and configured firewalls on various production servers.
• Implemented security on firewalls on various production servers.
• Configured cisco switches 2900 and also implemented VLANs.
• Maintained ULTRA SCSI external disks for Sun Enterprise 3500/4500.
• Monitored hardware diagnostics on Sun Fire V240, Sun Fire V440, Sun Fire V480, Sun Enterprise 3500, Sun Enterprise 4500, and Sun Enterprise 350.
• Installing and Configuring Windows 2000 server on hp proliant DL 580, hp proliant DL 380 boxes for production environment support.
• Creating Database users, roles, profiles, alert logs/ trace logs on Oracle Database application boxes.
• Maintained startup and shutdown procedures on oracle database applications.
• Backup and Recovery procedures by using RMAN.
• Backup and restore administration wif legato networker on sun E 3500.
• Worked as support team member in 24X7 development and production environment support.
• Familiar wif Installation and configuration of web sphere application advanced server Edition 4.0.1.
• Configured JVM Heap Sizes on Web Sphere Administrator Console.

Environment: Heterogeneous data center environment consists of more TEMPthan 130 servers including SUN SOLARIS 2.5/2.6/2.7/2.8/2.9 , HP-UX 10.20 & 11.0, WINDOWS NT 4.0, WINDOWS 2000 servers, And ORACLE DATABASES (8i&9i).