SUMMARY

• A results - driven and technically adept IT professional offering over 7 years experience excelling in Linux Systems Administration.
• Expertise in installation, administration, patches, upgrade, configuration, performance tuning and troubleshooting of Red hat Linux 4/5/6 and Sun Solaris 8/9/10.
• Experience with high-end enterprise servers like Sun T2000, 5240, M4000, HP ProLiant DL 380, 385, 580, BL400c, BL480c, IBM HS22, HS12 Blade center Servers.
• Expert in Jumpstart, Kickstart, Infrastructure setup and Installation Methods.
• Expertise in file system concepts like LVM, SVM, VxVM, creating new file systems, increasing and decreasing file systems, mounting file systems, un-mounting file systems and troubleshooting Disk space issues.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Experience with backup technologies like Tivoli Storage Manager 5.x, 6.x and Veritas Netbackup 4.x, 6.x, 7.x, EMC Networker v7.
• Experience in Installing, Configuring, and Implementing Virtualization Environment Using VMware ESX and ESXi, Oracle Virtual Box, and Microsoft Virtual PC.
• Experience working with SAN Devices like EMC Clariions, DMX, VMAX, 3PAR, NetAPP filers and NAS Solutions like Oracle ZFS7420.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing (DMP).
• Worked on Various Storage hardware like EMC Symmetrix, EMC Connectrix and Hitachi data systems.
• Experienced working EMC tools like SRDF, Timefinder devices for DR and local replication.
• Experience managing NetApp filers by creating volumes on raid groups and aggregates and sharing to Windows and UNIX servers using CIFS & NFS.
• Experience working with Snapmirror & Snapvaults for backup and replication purposes on NetApp devices.
• Disk space and File system management using Veritas Volume Manager 4.x, 5, Logical Volume Manager and Solaris Volume Manager, and ZFS.
• Planned, documented and supported high availability, data replication, business persistent, fail-over, fall-back Solutions using Sun Cluster 3.1 and VERITAS Cluster Server 4.0 and Red Hat cluster in SAN environment.
• Expertise in Installing and Managing LDAP, NIS, NFS, DHCP, SAMBA and DNS.
• Backup jobs, housekeeping, database, proprietary jobs using CRON, EMC legato Networker and BMC Control-M troubleshooting daily job problems.
• Strong experience and understanding of Auto mounts, TCP/IP, SMTP and Printer configurations.
• In Depth knowledge and experience with LDOMs, Server Domains and Zones/Containers.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat and Sun ONE.
• Monitoring the hosts and networks using NAGIOS, HP OpenView and BMC Products.
• Strong Experience in Weblogic 5.1, 6.1, 7.0, 8.1 and 9.1, 9.2 Application Server and experience in Weblogic 6.1, 7.0, 8.1, 9.1, 9.2 Clusters.
• Experienced in implementing the workload Management (WLM) using cloning and clustering.
• JBoss including installation, configuration, management and troubleshooting.
• Worked with different database Environments like Oracle, IBM DB2, Sybase and Oracle RAC (Real Application Clusters).
• Configured & installed ALOM

TECHNICAL SKILLS

Linux Server Administration: RHEL 4, 5, 6; Solaris 9/10/11; Expertise on Dev, Staging and Production environment under various OS, Application and Storage platforms; Shell Scripting: Bash. Fedora, SUSE, Debian, Ubuntu, CentOS, IBM-AIX, Sun Solaris, and HP-UX, Windows - NT/ 2000/2003/2007 Server/XP Pro/Vista/7

Cloud & SaaS PlatformsAmazon and Google Web Services: Backup and Recovery tools: Dump, Restore, Tar, CPIO, Rsync, Kernel re-compilation & Patches update, Kickstart Installation; Firewalls: IPTables; SELinux; ACLs File Transfer: FTP-Vsftpd; NFS & SAMBA; DNS-BIND, NTP, CUPS, SSH, Telnet, VNC,NIS & LDAP, SSL

Hardware and Virtualization: DELL (PowerEdge), HP (ProLiant G7 & G8), IBM BladeCenter, Sun-Fire X-series and T-series Enterprise Servers, Dell Power Edge Servers and MD1000 Storage/RAID setup

Web, Application and Mail Servers: Weblogic 10.x/9.x/8.x, Websphere, Apache HTTP/Tomcat/Jboss Server Installation & Configuration; Compiling with Modules; Virtual Hosting; SSL, Loadbalancing & Clusters

Network Protocols: DHCP, DNS, SNMP, SMTP, Ethernet, NFS

Databases: Oracle 8/9i/10,11G,DB2 and MySQL

Open Source Tools & Other Exposure: Nagios, Introscope, Splunk, Puppet, Windows 2000/2003/2008 Server Installation & administration, Antivirus Software’s, MS Outlook; Knowledge on Java, C, C++,Ruby, PHP, Shell Scripting, OS Administration basics

PROFESSIONAL EXPERIENCE

Confidential, SC

Sr.Unix/Linux Systems Administrator

RESPONSIBILITIES:

• Installed, Configured and Maintained Red Hat Linux (OEL 5/6, Red Hat Enterprise Linux 4.x, 5.x & 6.0) on x86 and Blade Servers.
• Supported Red hat servers in Production and Development environments
• Worked on Virtualizing Red hat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and vMotion.
• Managed patching of all Linux servers in environment with Red Hat Satellite
• Experience in RHEL Provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux environment using satellite server.
• Maintained and monitored 500+ Unix/Linux Servers with Multi-Datacenter environment.
• Building, Installing, Configuring servers from scratch with OS of Red Hat Linux
• Deployed over 50+ HP ProLiant BL460c Gen 8 physical blade servers for the red hat environment, which supported various applications.
• Also deployed virtual servers for the Environment.
• Installed and Configured Red Hat Linux Kickstart and booting from SAN.
• Configuration and administration of Fiber card Adapter’s and handling of SAN (SAN arrays, HITACHI, EMC).
• Performed SAN Migration on RHEL.
• Experience working with HP Open view client and server configuration
• Mirroring of root disks using Hardware Raid Controller on HP & Dell HW.
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments
• Expertise in file system concepts like LVM, creating new file systems, increasing and decreasing file systems, mounting file systems, un-mounting file systems and troubleshooting Disk space issues.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.

Confidential, NJ

Sr.Unix/Linux Systems Administrator

RESPONSIBILITIES:

• Installed, Configured and Maintained Solaris/RedHat Linux (Solaris 8,9 & 10, OEL 5/6, RedHat Enterprise Linux 4.x,5.x & 6.0) on SPARC, x86 and Blade Centers.
• Supported Redhat servers in Production and Development environments.
• Worked on Virtualizing Redhat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and vMotion.
• Created and Maintained Wholeroot and Sparse root Zones/Containers.
• Installed and Configured RedHat Linux Kickstart and booting from SAN.
• Configuration and administration of Fiber card Adapter’s and handling of SAN (SAN arrays, HITACHI, EMC).
• Performed SAN Migration on RHEL and solaris servers.
• Installation and configuration of backup clients like Avamar and Veritas Net Backup on Linux servers.
• Experience working with HP Openview client and server configuration.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Installation of Solaris 9, 10 using Jumpstart, Redhat EL 4.x, 5 using Kickstart/PXE and SuSe Professional desktop 10x.
• Installation and support of various applications like Weblogic server 10, WebSphere 6.1 JBoss 4.x, Apache 2.x, Oracle 9i, 10g, Mysql on Solaris 10.
• Administration of Websphere Application Server 6.x with Network Deployment, and Extension Deployment, on RedHat Linux.
• Mirroring of root disks using Hardware Raid Controller on HP & Dell HW.
• Managed 100 + UNIX servers running RHEL, HPUX & Solaris on Oracle HP and Dell server including blade centers.
• Experience configuring Emulex Converged Network Adaptors by Installing One Command on RHEL servers.
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers.
• Data migration at Host level using Red Hat LVM, Veritas Volume Manager and Solaris LVM
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: Solaris 8, 9, 10, Redhat EL 4.x, SuSe 10, IBM x3650,IBM HS22 Blade Center, T2000, T5240, V240, V880/890, BL460c, EMC-Avamar Netbackup, IBM Storage Manager, HP, Cisco Works, Korn shell, VMware ESX3.5, VMware Vsphere ESX4.0.

Confidential, ME

Linux/Solaris Administrator

RESPONSIBILITIES:

• Supporting Linux System Administrator customers with RHEL/SUSE a combination of systems architecture, systems development.
• SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, and standards validation/development, troubleshooting and problem resolution.
• Installed OAS (Oracle Application Server) on Solaris 9 and its configuration with oracle database.
• Installed and configured of hardware and OS (Solaris 10 and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in global-scale environment.
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments.
• Solaris OS Hardening as per company security standards.
• Installation and use of different Business packages on Solaris Platform.
• Applying OS and security patches for Solaris Operating Environment.
• Involved in migrating from Solaris to Linux and windows to Solaris and Linux servers.
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.
• Implemented Puppet Version 3 for Automation in the Non-production environment.
• Handled effectively Issues related to NFS, NIS, and LVM, Grub corruption, configuration & maintenance of RAID (level 0, 1, and 5).
• Troubleshooting VERITAS Volume Management and cluster server environment.
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• VMware configuration, automount, installing Solaris/Linux software and patches, NTP and swap space, memory and capacity alerts, SSH and k5login and hung system reboots.
• Writing scripts in PERL and SHELL to automate the process.
• 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.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Monitored health of servers and implemented customized solutions where applicable as well as provide reports on server utilization. Standardization, Documentation and Processes.
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers.
• Installation of Windows Server 2003 and creating Active directory Users.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Created test scenarios for testing NIS, NFS, DNS and other functionality of the OS. Maintained system security, including password checks, permission scans, implementation of security ensuring tools Linux environment.
• Daily backup and restore operations.
• Installed and maintained web servers Apache Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers.
• Maintaining device installation and configuration.
• Installation of Firewall checkpoint. Installed and configured IPFilter, to protect Linux system that was placed on the Internet.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V890, T5220, T5240 Sparc M4000, Switches, VMware ESX 5.1, oracle 11g, Veritas Cluster Server 5.

Confidential, Pleasanton, CA

Linux/Solaris Admin

RESPONSIBILITIES:

• Installation of Sun E250, E450, Sun E3000,E6900, SunFire v440/v480/v490 with Solaris 8/9.
• Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configured Winbind on all Linux workstations, which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
• 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.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux and AIX).
• Involved in migration AIX servers from 5.2 to 5.3.
• AIX systems administration and Disk Management using SMIT
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3,4 servers.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat WebSphere and Weblogic application server.
• Installation and configuration Veritas Net Backup on Sun Severs and performing Backup using Veritas Net Backup.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Involved in migration of projects from one flavor to another one.
• Worked on SAN using Tivoli Storage Manager in allocating file systems to the end users and for managing storage.
• Involved in development, user acceptance, performance testing, production & disaster recovery server.
• Worked in Data center environment for racking servers and configuring new Hardware.
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.

Environment: IBM AIX 4.3.3, 5.1, 5.2, Solaris 8/9/10, Red Hat Linux 4/5, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500,Disk Suite.

Confidential, St. Louis, MO

Unix/Linux Administrator

RESPONSIBILITIES:

• Installation, Configuration & Upgrade of Solaris, AIX, HP-UX, Linux and Windows-NT operating systems.
• Installation Packages and patches.
• Supported 24/7 high availability production servers.
• Monitoring System using HP/ITO, Do kernel tuning to enhance the system Performance.
• Configuration and Administration of DNS, NIS, NIS+, NFS, send mail.
• Installation, configuration and remediation of various Security software
• Expertise in VMware Virtualization using Vsphere 4.0.
• Installation and configuration of Netscape and Apache web server and Samba Server.
• Jumpstart installation. Writing Shell and Perl Scripting for automation of job.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
• Interaction with vendors for Hardware and software supports.
• Configuration and Administration of Veritas Cluster and MC Service Guard.
• Day to day maintenance of Veritas cluster Servers and MC Service Guard.
• Disk and File system management through Veritas Volume Manager, LVM and SVM.
• Installation and configuration of Apache and Websphere Server in Linux Platform.
• Backup management through Veritas Netbackup. Creation of Volumes and pools and scheduling the job.
• Installation and configuration of Network Printer with Centralized control of print client.
• Database Backup and Recovery. Performance Monitoring and Tuning
• Planning and setup of Disaster Recovery Servers.
• Trouble shooting of day-to-day system and user problems.
• Arbitrated Customer/User meetings to establish needs, initiated/managed risk assessment team, define expectations and explain capabilities of current technologies.
• Documented (formally) system requirements
• Oversaw customer installation and acceptance testing of the product, Product resided on Sun/Veritas configuration.
• Trained customer user community.
• Assisted team members in contracts, availability / problem resolution, technical Tier 1/2 support and security.

Environment: Solaris 8/9/10, AIX 4.x/5.x, Windows NT 2003/2000/ XP, NT, Redhat 5, SUSE, Sun Enterprise 450/420R/250 Servers, SPARC server 1000.

Confidential

Systems Administrator

RESPONSIBILITIES:

• Performed system administration of servers by using Operating Systems of Red Hat Linux early versions 8/9, RHEL 4/5.
• Build the E450 and 6000 Servers with Solaris operating system.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery
• Systems performance monitoring.
• Experience with VMware Virtualization.
• Responsible for troubleshooting end user and application problems.
• Creating User accounts, Mail account, groups, printer etc.
• Installing operating systems, patches, hardware, vendor software packages, system customization and documentation of all departmental UNIX, PC-based workstations and Terminal.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Set up Quotas for the user accounts & limiting the disk space usage.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Solving the problems as & when created when NFS data being accessed.
• Configured auto mounts/maps for the user accounts.
• Administration/Configuration of Print Servers/Clients in the Network
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Assembling the systems and installing operating system and application software.
• Designing computer displays to accomplish goals using flowcharts and diagrams.
• Installing Operating Systems and Application Software.
• Training for users to use the program.

Environment: Solaris 9/8, HP-UX 11.0/11i, AIX 4.3, 5.1/5.3L,Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers.