SUMMARY

• 8+ years of Professional IT experience in UNIX systems administration and application support. Proficient in Redhat Linux 4/5/6, Solaris 8/9/10/11, IBM - AIX, Windows (2003, 2008, NT) and Multi-server environments.
• Strong experience in System Administration, Installation, Upgrading, Patches, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning of Redhat Linux, Solaris 8/9/10.
• Extensive experience in Unix performance tuning and Capacity Planning.
• Experience in Configuration of Samba on Linux and Solaris servers and ensured that servers comply with SOX standards.
• Worked on Veritas file system for disk management. Planned, documented and supported high availability, data replication, business persistence, fail-over, fail-back using Veritas Cluster Server.
• Technically very sound working on Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Proficient with user account maintenance, backup & recovery, Auto-mounting, License Management.
• Experience in Installation, configuration and maintenance of VMware ESX.
• Experienced in working with Hitachi storage Area Networks (SAN) and Network Attached storage(NAS) NetApp Filers.
• Strong technical background includes major Linux hardware and operating environments as well as supporting skills like programming product documentation network architecture & troubleshooting.
• Experience in installation and configuration of web servers using Spring source and Covalent Apache, middleware software such as WebLogic, WebSphere, Autonomy Search engine and Google search Appliance.
• Experience in writing Shell scripts using Ksh, Bash, Perl, AWK and SED.
• Have dealt with NIS, NFS, FTP, Samba Server, remote access, security management and possess system-troubleshooting skills.
• Possess extensive knowledge of day-to-day administrative tasks like creating and managing user accounts, Scheduling cronjobs, printer maintenance, file system management including mounting and maintenance, logon support.
• Experience in using the network protocols like HTTP, FTP, TFTP, SMTP, TCP/IP, UDP, POP.
• Worked on debugging tools such as Dtrace, Struss and Top. Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Experience in setting up VERITAS Clusters and RAC clustering for high availability across multiple Data centers.
• Experienced in Performance monitoring & tuning using Solaris utilities iostat, vmstat and nfsstat.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Provided day-to-day operational support and system administration to production servers and related infrastructures.
• An excellent team player and self-starter with good communication skills and proven abilities to finish tasks before target deadlines.

TECHNICAL SKILLS

Operating Systems: Sun Solaris 8/9/10/11, RedHat 3/4/5/6, IBM AIX 5.3,5.2, 5.1, Windows NT 4.0, Windows Vista/XP/2000/98.

Hardware: IBM 3650/3850,V240,420R, Sun M4000, M5000, T5, T4, T1000, T2000, V440, V480, V490, V880,V890 and HP hardware DL 380/460,680

Software: Veritas File System, Veritas storage foundation suite, Solaris Volume Manager, Veritas Netbackup, Veritas clusters, ESM security Manager, ITM, MS Office Suite, VMware, Tivoli

Languages: C, Shell Programming, Awk, Sed

Networking: NIS, NFS, DNS, ALE, DHCP, Telnet, TCP/IP, SMTP, FTP, TFTP, UDP and SSH.

Tape Libraries: Sun StorEdge L20/L40/L60, L180 and Storagetek’s 9840 A/B/C Fibrechannel

Backup: Veritas Netbackup 4.5, Legato, Ufsdump, Ufsrestore

Databases: MS Access, Oracle 9i, 10g, 11g, MySQL, DB2/UDB, Sybase.

Application Servers: Web Logic, WebSphere Application Server, LDAP Server, JBoss, Apache Tomcat, IPlanet and IIS.

Mail: SMTP, POP, IMAP, QMAIL, SENDMAIL.

PROFESSIONAL EXPERIENCE

Confidential, Charlotte NC

Unix Middleware Administrator

Responsibilities:

• Installation/configuration of Redhat 4/5/6 using kickstart Server and Solaris 9/10/ using Jumpstart.
• Performing Post Build activities like Setting up Backup interface/ NIC bonding/ Loading additional Packages/ Joining the server to Active Directory, etc
• Worked with EMC SAN to acquire storage and setting up Veritas/LVM file-systems.
• Installed, configured and administered Oracle Weblogic server 10.3.6.
• Configured and administered JDBC Connection Pools/ Multi Pools/Data Sources on Weblogic Server.
• Deployed WAR, JAR and EAR applications on Weblogic servers in different SDLC environments.
• Deployed the applications on multiple Weblogic sever instances and maintained Load balancing, high availability and Failover for the servers.
• Involved in installing and upgrading Apache 2.0 to springsource Apache 2.2.17 in test and production environments.
• Worked on setting up Verities cluster server 6.1 and upgraded cluster software from 5 to 6.
• Worked with Oracle DBA’s for restore of Oracle Instance and Building Oracle RAC Cluster.
• Worked on creating Virtual machines using VMware and CHP software.
• Experience with working on Solaris Zones/Containers.
• Performed hardware, operating system, security and application updates/patches on these systems as well as operating system hardening based in industry standards.
• Installed, configured and maintained Autonomy Idol search engine for Public, secure and Intranet sites.
• Migrated the search engines from Autonomy search to the latest Google search Appliance (GSA) to provide Rich search experience for user community.
• Experienced working on Datacenter Migration Projects.
• Mirrored existing logical volumes & created volume groups, disk groups & set up the RAID (0,1,5) using VERITAS volume manager. Migrated the existing UFS data to VxFS for best possible IO performance.
• Installed/Configured the WebSphere server, JBoss application server, Weblogic server; Managed tuning and performance of high profile applications running on them.
• Installed Apache web server proxy front-end for Application Servers.
• Installed, configured and maintained web centre public site ( Confidential .org) on apache and VMware tomcat with high availability.
• Integrating Weblogic Environments with Apache web server 2.2 for reverse proxy.
• Created self-sign certs and installed vendor's certs for Apache.
• Apache web server administration performance tuning, security and module programming.
• Working Knowledge of Network Protocols such as NTP/ NIS/ TCP/ DNS/ DHCP/ HTTP/ SMTP/ SFTP/ FTP/ SCP/ NFS.
• Worked with Enterprise Security Manager to get Security certification for servers before moving them in to production.
• Responsible for Failover/Pre-Failback/Failback and verification of the same incase of outage in the high environment using VCS (Veritas Cluster Server).
• Developed Cron jobs and Shell Scripts (Perl, ksh, SED, AWK) for automating administration tasks like file system management, process management, Server reboots etc.
• Worked on Datacenter Moves where servers were moved from one datacenter to another.
• Working very closely with vendors (IBM/HP/Sun/EMC) in resolving any hardware/ Storage and Network issues.
• Monitoring the system performance and doing the kernel tuning to enhance the system performance.
• Working knowledge on ITSM remedy and Maximo ticketing systems.
• Troubleshooting Production Server Problems related to web applications, Sendmail, disk space, file system, DNS and network connectivity.
• Provided 24/7 on-call support on a weekly basis.

Environment: RHEL 3, 4.x, 5, Solaris 9, 10, Veritas Storage Foundation 5, Oracle 10g/11g, Veritas Cluster Server, Zones, RAC, DMZ, Send mail, SAN, NAS, Active Directory, NIS, ITM, VMware, Netbackup 6.5, BMC Patrol, LVM, Websphere, Weblogic 8/10, Autonomy IDOL, Google Search Appliance.

Confidential, Bloomington, IL

Solaris/Linux Administrator

Responsibilities:

• Installed, configured and upgraded of Sun Solaris 8,/9/10/11 on Sun SPARC, Solaris x86 and Red hat 4/5/6.
• Involved in the Implementation of the SunFire 4800/6800 in Veritas Cluster Server environment.
• Administration and Troubleshooting Solaris servers running business critical application WebSphere (WAS), Weblogic and apache web applications.
• Configured SSL setup for Apache. Configured SSL between Apache and WebLogic plug-in.
• Administration for E15k and E25k's. This involves creating domains, adding/deleting system components
• Installed, configured and supported Oracle HA resource groups
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Installed and Configured Sun availability Suite 3.5 to implement Point-in-time snap shots and remote mirroring.
• Installed, configured and maintenance of Veritas NetBackup 5.x/6.x.
• Installed and configured Veritas Storage Foundation Suite, Volume Manager, Cluster Servers & Veritas File systems (Vxfs).
• Configured and maintained the vonage.com website on apache and tomcat.
• Installed SSH and configured keys bases authentication.
• Managed disk storage with Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager with Veritas File System (VxFS) in SAN environment.
• Installed WebLogic 10.x and configured Domains, Admin and Managed servers for Applications to be deployed.
• Shell scripts using Bash, Perl, AWK and SED concepts.
• Implemented NIS and NFS for administrative and project requirements.
• Setting up the thresholds on the parameters (CPU/Memory/Disk/Network) and alerting the users when the usage reaches the thresholds.
• Tuning the kernel parameters based on the application/database requirement.
• Configured Jumpstart Enterprise Tool kit to provide Jumpstart installations, upgrades and troubleshooting of servers remotely.
• Upgrade Solaris 8/9 to Solaris 10 using Live upgrade and manual upgrade.
• File system tuning, growing, and shrinking with Veritas File system 3.5/4.x in SAN environment.

Environment: Sun Solaris 8,9,10, Solaris x86, Red hat Linux AS3.0, AS4.0, Sun 15K, 25K, Sun Fire 6800, 4800,V890, V880, V490,V480 and V210, VXFS, IBM series, Veritas Foundation Suite, Veritas Volume Manager, Solstice Disk Suite, Veritas Net backup, DNS, NIS, NFS, Sendmail, DST patching, Remedy, Weblogic.

Confidential, Nashville, TN

Unix/Linux Administrator

Responsibilities:

• Installed/configured/managed/Administrated of all UNIX servers includes the design and selection of relevant hardware to support the installation/upgrades of Linux and Solaris8/9/10(SPARC & X86 hardware) operating systems.
• Performed hardware, operating system, security and application updates/patches on these systems as well as operating system hardening based in industry standards.
• Configured Jumpstart server for Solaris 10, Kickstart server for red Hat Linux, operating system image installations through Network.
• Used Solaris Volume Manager to mirror the root disks and Logical Volume Manager to create physical volumes, logical volumes and file systems.
• Worked with RedHat Linux tools like RPM to install packages and patches for RedHat Linux server and Vir-Install, Vir-manager to install and manage the Virtualized OS.
• Design/planning/implementation of clustering/Load balancing solution utilizing Network Foundry’s ServerIron, F5 Network BIGIPs.
• Install, configure, and manage virtual machines using VmWare ESX 3.5
• Monitored application log for warning and error messages for service startup errors, application or database errors and unauthorized application installs and Checked security log for warning and error messages for invalid logons, unauthorized user creating, opening or deleting files on Linux.
• Installed and configured domain wide mail systems utilizing Postfix with multi subnet and a single relay host for internal mail forwarding, all external mails were handled by Sendmail and SMTP.
• Monitoring of network services (SMTP, POP3, HTTP, NNTP, PING, etc.
• Extensively used LVM, creating Volume Groups, Logical volumes, and disk mirroring for RedHat servers.
• Troubleshooting and fixing the issues at User level, System level and Network level by using various tools and utilities.
• Configured/Maintained/Troubleshooting the Networking servers DNS, NIS, NIS+, Printer server and SENDMAIL; Implemented DNS by Using BIND software to resolve the domain names.
• Installed/configured/managed the LDAP servers which act as Authentication server for all UNIX servers.
• Administration and troubleshooting of working Application, starting and stopping the application server & Regenerating/updating plug-in for IBM HTTP Server.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Documented installation and upgrade procedures for different applications and environment changes to be made.
• Provided 24x7 support on shift rotation basis.

Environment: RHEL 4/5, Solaris 9/10, Veritas Storage Foundation 5, Oracle 10g, Sun Java System, Nagios, Sendmail, SAN, Netscape, Tomcat, Cisco, RAC Clusters, Windows, VMware, Netbackup 6.5, BMC Patrol.

Confidential

Unix System Administrator

Responsibilities:

• Experienced in Installing, Upgrading, Configuring and Administrating Solaris 2.5/2.6/7/8/9 on various Sun hardware’s.
• Perform user management, group management and device management in Sun Solaris.
• Experience in Job scheduling, and monitoring of various jobs running.
• Installation of software packages and checking the integrity of the installed packages
• Configured and maintained NIS, NFS, and DNS client
• Performance monitoring and tuning of file systems: By using commands such as SAR, uptime, vmstat, tunefs, sysdef, performance of the system is monitored
• Expertise in Hardware Diagnostics with Sun tools.
• Creating and maintaining a Solaris UFS file system and disk slices.
• Jumpstart installation of Sun-SPARC machines through jumpstart servers for the environment.
• Administering and Configuring Multi-Unix environment with 30+ Sun SPARC Servers on heterogeneous network.
• Installation, configuration, monitoring and troubleshooting of Red Hat 3.0 ES.
• Installation of Oracle 9.2.0.6 database on Red Hat Linux and Sun Solaris 8.0/9.0 and kernel parameter tuning for Oracle database installation.
• Installed and Configured Veritas NetBackup 5.1 on Sun fire 440 servers.
• Monitoring network activities & optimizing the performance of the Network
• Trouble shooting the connectivity and accessibility issues.

Environment: Sun High-End Servers (12k/15k/25k), Midrange Servers (3800/4800/6800 ) Sunfire T series (T2000/T1000 and entry level Servers, storage arrays and Storage libraries, Sun Solaris 9, 8, 7,Linux 3/4, Unix, Veritas Volume Manager 4.1