SUMMARY:

• A Sun Certified system Administrator, over 7 years of experience as UNIX Administration in SUN-SOLARIS (10, 9, 8), RedHat LINUX, SUSE Linux 10/11, CentOS and Windows, knowledge in computer hardware and I/O devices.
• Proficient in working on Solaris 10 on Sun M5000/T4000, T5200/T2000, Sun V490, E2900, Fire 6900/6800, Sun Fire 25K/15K/12K & all other Sun servers.
• Expertise in administration of Sun Solaris and building high end Sun Servers for production environment. Building Sun servers with Solaris 10, Jumpstart.
• Strong experience in System Administration, Installation, Upgrading , Patches , Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris, Red Hat Linux)Systems.
• Experience with Windows Active Directories, Exchange, DHCP & DNS configurations.
• Installed/configured IIS for performance tuning.
• Used IIS creating connections to a backend SQL database.
• Experience in Zone Creation on Solaris 10. Configured and Installed Solaris zones (containers) using utilities Zonecfg, Zoneadm etc and also worked on the creating branded zones (creating solaris 8/9 on a solaris 10 server).
• Experienced in maintaining file systems and creating ZFS.
• Involved in complete Administration tasks on UNIX (SUN Solaris, Red Hat Linux) and documentation for the projects executed.
• Installed, monitored and supported Web and Application Servers on Solaris and Linux environments.
• Good knowledge on operating systems architectures.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience in Creating new file systems, mounting file systems and un mounting file systems, Hands on experience in Tivoli Storage Manager (TSM), DiskSuite (SVM).
• Experience in installing the VERITAS, installing and configuring the Veritas cluster server (VCS), Veritas HA using the Veritas storage administration (Veritas volume manager, Veritas file systems) for the SAN configuration.
• Experience in Hitachi SAN Storage administration using Meta, VxVM.
• Experience in installation and configuration of WebSphere, Apache, IPlanet, BEA WebLogic, LDAP, and mail servers.
• Proficient in performing 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.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Setup and configured network TCP/IP on SOLARIS including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on Solaris Servers.
• Proficient in configuring JumpStart and KickStart servers to initiate installation of Solaris and RedHat Linux on several machines at once.
• Experience using diagnostic and debugging tools such as Dtrace, Strace, truss and Top.
• Worked on group/user administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation.
• Highly experienced with Storage Administration like EMC SAN Administration, NetApp, NAS Administration, Veritas NetBackup and Legato.
• Experience working with Storage Area Network (SAN), EMC CLARiiON, EMC Symmetrix DMX, VMware.
• Experience in writing Shell scripts using ksh, bash, perl, for process automation of databases, applications, backup and scheduling.
• Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance, creating new Slices with format and creating huge Slices with Daisy Chains.
• Expert in setting up SSH, SCP, SFTP connectivity between UNIX hosts.
• Experienced in DNS, NIS, NFS, CIFS, FTP, NIS, Samba Server, LDAP, remote access, security management, and system troubleshooting skills.
• Experience on upgrades of Solaris, Sun Hardware, patches, Veritas S/W. Disaster recovery, Veritas NetBackup, Watchers and also Oracle & third party software.
• Build and configure complex clustered environments using Solaris 10, Sun Cluster and Veritas Cluster with shared storage configured from Netapp arrays. Measure and analyze host and storage behavior during injected faults.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Experience administering two AIX HACMP clusters running AIX 4.3, and 5.2 in a SAN environment with an EMC Symmetrix and an IBM ESS 2105.
• Performance Monitoring & Tuning - iostat , vmstat & netstat, nfsstat.
• Experience configuring Firewall and security using SSL, IPchains, IPtables, TCP Wrappers, Tripwire, and port scanners.
• Security compliance on the OS for SOX and internal audits.
• Experience in performing DBA tasks such as creating users, roles, tables, tablespaces, imports and exports for development of databases.
• Excellent client relation skills and the drive to complete tasks effectively, and efficiently where customer services and technical skills are demanded.
• Ability to communicate effectively with all levels of management, and the client community.
• Provided production support in an on-call rotation in a 24x7 environment.

Certifications: Sun Certified System Administrator for Solaris 9/10 Operating System.

Education: Bachelor of Electronics and Communications, Nagpur University, India.

Technical Skills:

• Operating Systems:SUSE 10/11, Solaris 8/9/10, AIX 4.x, 5.1, 5.2, 5.3, RedHat 7/8/9, CentOS 3/4/5, Windows 2000/2003 Server. Windows NT4.0, Windows 98/2000/XP/2003/2008 R2.
• Hardware:Sun Servers (x4250, x4270, x6250, x6270m2, v240 and E450), IBM RS/6000, p520, p550, p570, p590, p595, p670, p690, PowerHA, VeritasHA, SPARC (M5000) Ethernet hubs, and switches.
• Tools:Sun Cluster 3.2, VERITAS Netback up 6.0, Admin Tool, Ufsdump, VERITAS, Storage Foundation Suite, Solaris Volume Manager, File manager, IIS, send mail.
• Languages:Shell Programming, SQL, PL/SQL, C++ and HTML.
• Databases:Oracle 8i/9i/10g,SQL Server 2005/2000, DB2,MS-Access, MySQL
• Networking:FTP, FTPS, HTTP, HTTPS, TCP/IP, NIS, NFS, DNS, ALE, and BAPI.
• Scripts:Bourne, Bash, Korn Shell.
• Storage and Backup:Dothill, Sun Storage, Tivoli Storage Manager, VERITAS Net Backup, NAS.
• Web and Application:Apache, Glassfish, Web Logic Server 8.1, WebSphere Application Server 5.0.

Professional Experience:

Confidential, Duluth, GA, April 2011 – August 2012 UNIX/Linux Administrator Responsibilities:

• System Administrator/Integrator role in a large team responsible for maintaining of Linux operating systems such as SUSE 10/11.
• System Integration role in a diverse product deployed in different parts of the world.
• System Architect in creating and deploying blue prints for different deployments.
• Performance tuning and monitoring for Veritas High-Availability architecture.
• Creating scripts to implement Oracle upgrade procedures and database changes.
• Creating and testing documentation for customers
• Testing Settings and configurations for different customers using simulators and available in house hardware.
• Working with DNS based architecture, in depth knowledge of name service, master and slave configuration, centralized dns lookup and fail over.
• Testing and troubleshooting database related errors like user profiles/settings, connection issues and foreign key dependency issues.
• Creating/editing Install/Upgrade scripts to manage rpm’s non-conventionally (selective backup and restore of rpm during upgrade).
• Working with rpath, creating and managing iso images from the rbuilder server. Importing release rpm database into rpath appliance and managing recipies.
• Working with VMware 4.0, extensive creation and management of virtual servers and managing resources. Addition of datastores and upgrading the vmware box to 5.0.
• Using virsh to manage and create virtual servers, deploy raw files, cloning and managing connections.
• Managing and upgrading glassfish domains.
• Deploying Oracle Hardware Management pack monitoring agents, configuring snmp traps and doing snmp walks.
• Creating and managing network routing characteristics for a multipath environment.
• Troubleshooting and analysis of hardware and software failures for various Linux servers (core dump and log file analysis). Managing spfile and pfile for performance tuning.
• Creating and testing scripts for Solaris 9/10 environments, performance tuning and hardware testing.
• Experience with webserver configuration like Apache & Weblogic on both Linux & UNIX.
• Configured secure connection with weblogic and backend database.
• Use IIS to troubleshoot system related issues and to do an audit on the user logins during a day.
• Installed different virtualization products such as vmware server 2.0, ESX 3.5/4.0 on a physical server which in turn will host different virtual servers running different SUSE versions, Linux, Solaris etc.
• Configure and maintain VMware with updates and devices managemenet.
• Perform maintenance tasks in Oracle such as archiving, shrinking, migrating databases and log rotation and archiving.
• Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting up SUDO access for DBA and application account access.
• Created disk groups, initialized physical disks, created sub disks, plexes, volumes to create a Veritas File System (VxFS).
• Created mount points for Server directories, and mounted directories on the Servers.
• Maintaining network and data security using SSH and SCP features between SUN systems and other Linux hosts.
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Installed patches and Packages as needed, installed and configured new hard drives and memory.
• Performed Performance Monitoring & Tuning - iostat , vmstat & netstat, nfsstat.
• Performed patching, backups on multiple environments of Solaris and Linux.
• Installed and configured WebSphere, Apache.
• Developed Korn shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Installed and Configured Apache Web Server. Taking ufsdump for swap gear preparation on the other site for migration
• Performed administration of Sun Solaris and building high end Sun Servers for production environment. Build Sun servers with Solaris 10, Jumpstart.
• Performed Installation, Upgration , Patches , Migration, Configured , Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUSE Linux, SUN Solaris 10, Red Hat Linux)Systems.
• Experience in writing monitoring/start up shell scripts for unix and Linux
• Performed Zone Creation on Solaris 10. Configured and Installed Solaris zones (containers) using utilities Zonecfg, Zoneadm etc and also worked on the creating branded zones (creating solaris 8/9 on a solaris 10 server).
• Experienced in maintaining file systems and creating ZFS.
• Performed design and have a development experience in Perl and Unix shell scripting

Confidential, Plano, TX Feb2010 – March 2011 UNIX/Linux Administrator Responsibilities:

• System Administrator role in a large team responsible for maintaining of different Unix operating systems such as RHEL 3/4/5, Solaris 8/9/10, AIX 5.1/5.3, CentOS 4/5, Windows 2003/2008 R2.
• Installed IIS on Windows 2003/2008 servers for performance tuning.
• Installed IIS as webserver and for performance monitoring.
• Experience with installing IIS on UNIX/Windows platforms and configuring secure connection.
• Experience with webserver configuration like Apache & Weblogic on both UNIX & Windows platforms.
• Configured secure connection with weblogic and backend database.
• Use IIS to troubleshoot system related issues and to do an audit on the user logins during a day.
• Installed different virtualization products such as vmware server 2.0, ESX 3.5/4.0 on a physical server which in turn will host different virtual servers running different RHEL versions, Linux, Solaris etc and windows servers.
• Configure and maintain VMware with updates and devices managemenet.
• Installed Windows servers running Active Directories & Exchange.
• Perform maintenance tasks in MS Exchange such as archiving, shrinking, migrating mailboxes.
• Installed different Oracle products such as Oracle BPM, integrated it with Oracle weblogic server 10.3, Oracle DB 11g and Sun One LDAP 6.1 to allow developers to work on it.
• Installed AIX as LPAR on an IBM P series servers maintained by using HMC set up on a SUSE server.
• Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting up SUDO access for DBA and application account access.
• Created disk groups, initialized physical disks, created sub disks, plexes, volumes to create a Veritas File System (VxFS).
• Created mount points for Server directories, and mounted directories on the Servers.
• Maintaining network and data security using BigFix and, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Installed patches and Packages as needed, installed and configured new hard drives and memory.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Performed Performance Monitoring & Tuning - iostat , vmstat & netstat, nfsstat.
• Experience in working with ClearCase CLI commands such as clear tool and clear make in both single command mode and interactive mode.
• Experience in working with cleartool to display event record, by including the comment strings such as lshistory, lscheckout, lstype etc.
• Performed patching, backups on multiple environments of Solaris and Linux.
• Installed and configured WebSphere, Apache, IPlanet, BEA WebLogic.
• Developed Korn shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Installed and Configured Apache Web Server. Taking ufsdump for swap gear preparation on the other site for migration
• Performed Installation and Administration of BEA Weblogic 8.1/9.2/10.3
• Installed products like tibco. Responsible for installation, configuration and support of WebLogic 10.3/9.2/8.1 on Sun Solaris 10 Servers.
• Performed administration of Sun Solaris and building high end Sun Servers for production environment. Builded Sun servers with Solaris 10, Jumpstart.
• Performed Installation, Upgration , Patches , Migration, Configured , Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (SUN Solaris 10, Red Hat Linux, CentOS)Systems.
• Experience in writing monitoring/start up shell scripts for unix and batch scripts for windows
• Performed Zone Creation on Solaris 10. Configured and Installed Solaris zones (containers) using utilities Zonecfg, Zoneadm etc and also worked on the creating branded zones (creating solaris 8/9 on a solaris 10 server).
• Experienced in maintaining file systems and creating ZFS.
• Experience in implementing and maintaining the IBM NetCool suite in a complex enterprise environment
• Performed design and have a development experience in Perl and Unix shell scripting

Confidential, San Francisco, CA July 2009– Jan 2010 UNIX/Linux Administrator Responsibilities:

• Installed and configured hardware and OS on Servers, Workstations and I/O devices on Sun hardware.
• Monitor, troubleshoot and administer of SUN Servers, Linux and HP-UX.
• Installed and configured IIS for SMTP connection in mail flow.
• Integrated IIS with Weblogic using SSL secure connection.
• Installed vmware and lead a team migrating physical servers to virtual machines and configuring the resources to be shared between different virtual machines.
• Manage vmware licenses and create virtual machines for developers whenever required.
• Use vmotion to migrate virtual servers between different physical machines.
• Installation and configuration of Windows servers running DHCP, DNS, Exchange & Active Directories.
• Performed Jumpstart Installation of Solaris servers for different OS levels (9/10) for different architectures (V- series, M series, T series).
• Worked in a fast-paced 24x7 production environment comprising Sun, IBM, PowerHA.
• Installed configured, managed the ACL’s around the CVS, Subversion (SVN) repository and also responsible for back-up recovery of the repository.
• Installation of OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Restore of Oracle instance and worked with Oracle team for Oracle installation and Building Oracle Cluster.
• Installed patches and software as needed, installed and configured new hard drives and memory.
• Created disk groups, volumes, volume groups and RAIDs using VERITAS Volume Manager and worked on Tivoli Storage Manager (TSM), Veritas DMP multipathing, Solstice DiskSuite (SVM)
• Involved in disk configuration and disk crash recovery using format and fdisk. Performed fsck on the file systems and bad super blocks were repaired using repair and analyze.
• Created new slices, mounted new file systems and unmounted file systems.
• Created and Maintained ZFS.
• Upgraded Solaris 9 to Solaris 10 and worked with Solaris zones/containers, Used Solaris Cluster to deploy two-node cluster.
• Installed the packages using Enterprise Installation Standards (EIS).
• Performed patching, backups on multiple environments of Solaris, Linux and VMware.
• Installed and configured packages, patches on Windows (2k &2003) environments.
• Implemented anti-spam technology based on open source applications on Linux servers.
• Created and Managed Meta devices using Solstice Disk suite and Volume Manager.
• Configured backup/archive policies using Tivoli Storage Manager backup utility, and mksysb images of root volume group to meet data archiving requirements, and disaster recovery readiness.
• Installed and Configured Sun ONE Webserver.
• Responsible for monitoring system performance and health by using a tool Big Brother or Xymon.
• Responsible for DNS and Configured DNS Servers and Clients, troubleshooting system and DNS issues.
• Configured BIND9 DNS Server to serve an internal network and an external network at the same time with different set of information on Solaris servers.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Involved in maintaining high availability clustering environment using HACMP Cluster software.
• Configured and administered TCP/IP, LPAR/DLPAR, NFS and VIO servers and Worked with LDAP in order to resolve user management issues.
• Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning with nfsstat , netstat, iostat, vmstat.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Installed and deployed Weblogic and Websphere Application Servers (WAS).
• Created disk groups, initialized physical disks, cachreated sub disks, plexes, volumes to create a Veritas File System (VxFS).
• Import and Deport disks into a disk group dependending on the requirement using the vxassist utility on the Veritas Volume Manager.
• Used VERITAS Netback up tool for Backup and recovery,Developed and executed test plans for Veritas Cluster with Netapp SAN.
• Worked on tripware, F5 networks in order to develop an effective way to direct traffic running on app servers using the BIG IP application traffic management device.
• Configured LUNs (HDS) using Veritas Volume Manager.
• Experience in performing RAC, deploy, and support using Oracle RAC on Solaris 9/10.
• Provided support for multi-path Fiber Channel storage systems, as well as Solaris servers configured with multiple Fiber Channel (FC) Host Bus Adapters (HBA) ona Storage Area Network (SAN).
• Experience in working with ClearCase CLI commands such as clear tool and clear make in both single command mode and interactive mode.
• Experience in working with cleartool to display event record, by including the comment strings such as lshistory, lscheckout, lstype etc.
• 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 Send mail and SMTP.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Provided 24x7support on shift rotation basis.

Environment: Sun Solaris 10/9, Windows NT 4.0, 2003, 2008 R2,Websphere, Weblogic, Windows NT 4.0, VERITAS Volume Manager 5.0, VERITAS Net backup 6.0, Sun Enterprise 4500, Sun Enterprise 450/420R/250, Sun Ultra 250 with RAID, Pentium PCs, Oracle 10g, HACMP, SAN, NIM, NFS, VIO Servers.

Confidential, Plymouth, MI May 2008 - June 2009 Solaris Administrator Responsibilities:

• Responsible for installation, configuration and administration of Sun Solaris 9 and Red Hat Enterprise Linux on x86 architecture.
• Installed and configured of hardware and OS on servers, workstations and I/O devices on E4500 environment.
• Managed the User and Application Account creations and deletions for the SUN Servers. This includes setting up SUDO access for DBA and application account access.
• Created mount points for Server directories, and mounted directories on the Servers.
• Installed and Administered Veritas volume manager 3.5 on Ultra Sparc E250, E450, Sun E3000 machines and configured RAID 0, RAID 1, RAID 0+1 and RAID 5. Created vmdisks, plexes, and volumes using the volume manager according to the requirements. Replaced failed disks using vxdiskadm.
• Co-ordinate with web admin team in installation of BEA Web Logic Server 8.1.
• Used ATG application suite and Cisco networking solution software to host variety of applications.
• Setup and maintained NFS, DNS, NIS, and TCP/IP network and knowledge in LDAP Server.
• Maintaining network and data security and, Setting up SSH and SCP features between SUN systems and other UNIX hosts.
• Installed/upgrade TSM on Unix Servers, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• Used ESN Manager LUN/Meta mapping to perform Storage Allocation / Deallocation for the EMC Storage SAN.
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Solaris fibre channel stack components for changes that could impact the SAN attach solution like Native drivers, HBAs, multipathing (MPxIO) SW, volume management, host clustering, installation/packaging, & bug fixes.
• Developed Korn shell scripts for admin tasks like customizing user environment, performance monitoring and Responsible for cron job management and Performed disaster recovery management procedures.
• Managed file permissions & ownership for important directories & files.
• Administered security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring and Performed disaster recovery management procedures.
• Administration responsibilities include user, group, disk, and security management, File sharing Permissions.
• Generated reports to show the trends of resource utilization user/CPU/network load.
• Assisted other UNIX administrators when help was needed (i.e. creating UNIX accounts, writing scripts to perform system administrator functions, responding to trouble tickets, etc).
• Involved in preparation of functional and system specifications. Estimated storage requirements for applications.

Environment: Sun Solaris 10/9, Red Hat Linux 4, Dell Power Edge 1800/1850/2850 servers, Intel servers, Sun Ultra Enterprise 4500, Sun Enterprise 450, Sun Enterprise 420R, Sun Enterprise 250, Sun Fire V20z servers, Dell PCs & Compaq PCs, SDS 4.1, 4.2 Solstice Disksuite VERITAS Volume Manager, VERITAS Netback up 5.0, Sybase 11.5.1, Perl Scripting, Oracle, NIS, NFS, LDAP server.

Confidential, West Des Moines, IA Feb 2006 - Apr 2008 Solaris/UNIX/LINUX 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 Winbind on all Linux workstations, which enables all the Linux users to be authenticated on Microsoft Windows 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.
• Used RPMs to 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.
• Setup EMC HBA fiber cards and storage frames for DB2, Oracle and Sybase databases.
• Responsible for DNS and 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 shared NFS files 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 using GFS.
• 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.
• Worked with SAN, in EMC and CLARiiON disks, their configuration and installation of power path.
• 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 from Legato Networker to Symantec Backup Exec.
• User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
• Installed and Configured Apache Web Server.
• Implemented Bug tracking system using bugzilla and 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

Confidential June2005 – Feb 2006 Solaris/UNIX Administrator Responsibilities:

• Administered servers in heterogeneous environments which include Solaris and Linux systems.
• Managed Linux Clusters by integrating NAS, SAN, SCSI, Myrinet and Infiniband into large high performance clusters. Installed, and configured cluster management tools to perform management and job submission to Clusters.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Configure and maintain Windows 2k and 2003 Server that runs DNS, DHCP and active directory services.
• Used Logical Volume Manager for configuring logical volumes.
• Administered, installed, and supported services including: exim, qmail, BIND, spamassassin, iptables, ipchains, apache, Mailman.
• Installations of all the required Software, documentation and licensing and added new SCSI hard drives to the system.
• Setup dial-up, VPN (Oracle VPN Client), and SSH2 (Van Dyke Software), and firewall applications (Mcafee) for developers to access various domains.
• Deployed NFS environment for applications distribution, software development, and "auto home". This also involved setting up automated backups for the critical systems, and configuring "cachefs" for performance gains on the client side.
• Expertise in setup various Network Printers and troubleshooting Printer problems.
• Shutdown the whole system along with databases and reboot the system.
• Used various commands to check the Performance of the system, load balances on the CPU and memory.
• Used Admintool to Manage Users, Groups, Software, Hosts and Printers.
• Worked with DBAs on installation of Sybase to achieve restoration and log generation.
• Monitored Sun Solaris Servers running in a 24x7 data centre supporting approximately 400 servers.
• Solved hardware and software problems over the phone or during walk-in sessions.
• Attended weekly change management meeting and suggested various changes. Implemented all changes by following change management rules.

Environment: Sun Solaris 8/9, Red Hat Linux 6.2, NFS, NIS, TSM, IBM RS/6000, IBM PowerHA,Veritas Volume manager 3.5, SunE250,E450,SunE3000, SunFire v440/v480/v490.