SUMMARY

• 6 years’ experience in LINUX (Redhat, SuSE, CentOS, Ubuntu), UNIX and VMware Systems Administration.
• Experienced in installing, configuring and upgrading Linux, AIX using manual and automated installation.
• Experience supporting applications like Apache, Weblogic running on RHEL.
• Experience in supporting and implementing security on RHEL.
• Experience in USER MANAGEMENT by giving sudo access to the users.
• Resolution of technical issues on system integration and support.
• Worked on Incident Management, Problem Management & Change Management.
• Installation Configuration and Administration of Veritas Volume Manager, Veritas Cluster Server 5.0, VxFS, Redhat Cluster Server using EXT3, EXT4 and GFS.
• Disk space and File system management using Veritas Volume Manager 4.x, 5, Logical Volume Manager, Solaris Volume Manager and LVM
• Experience in upgrading and degrading KERNEL Versions and SAN MULTIPATHING in LINUX.
• Experience in Server migration from AIX and HP - UX to Redhat Linux.
• Experience using Software management and deployment tools (Puppet, Chef, etc)
• Experience in migrating servers between Datcenters.
• Experience of working in Data centers with 24X7 Production and On-Call Environment.
• Installing of Oracle (10g & 11g), Weblogic (9.3 & 10), MQSeries on Linux.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• VMware Infrastructure Installation & Configuration. Planning and Designing VMware VI3 (ESX3.x/ ESXi 4.x/ Thin ESX,ESXi 5.x VMware Virtual Center and VMware VSphere).
• Migrate Physical Servers to Virtual Server using VMware Converter (P2V Converter).
• Experience in supporting Red Hat Satellite Server, RHN
• Troubleshooting issues on Application Servers on Linux and Aix
• Hands-on experience in configuring SSH and FTP server/client systems to transfer files.
• Expertise in Installing and Managing LDAP, NIS, NFS, DHCP and DNS.
• Experience in UNIX with Korn and Bash shell scripts
• Ability to work in team oriented and problem solving environment.
• Good Communication skills, ability to lead a work team, working in Team Environment

TECHNICAL SKILLS:

Operating Systems: RHEL 3.0, 4.x/ 5.x/6.x, SuSE Linux Enterprise Server 9 and 10, Windows 2003, 2008, AIX 5L, VMware 3.5/4/5 ESXi / vSphere & Configuring DRS, HA, P2V

Programming Languages: C, Perl, Shell, SQL, xml, html.

Unix Services & Tools: DNS, DHCP, NTP, HTTP, LDAP, SSH, SSL, SFTP, GREP, SCP, AWK.

Storage Technologies: NetApp NAS, Confidential Clariion, VNX, HDS, Confidential Powerpath, Snap Mirror, VeritasNetBackup, Volume Manager, oracle zfs 7400.

PROFESSIONAL EXPERIENCE:

Confidential, Denver, CO

VMware Administrator

Responsibilities:

• Installation, Configuration and Upgrade RHEL 5.x, 6.x, OEL 6.x and Solaris 10, 11 operating systems.
• Installed and Configured RedHat Linux Kick start and booting from SAN and managing multipathing at boot level and OS level using Confidential Powerpath.
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Conduct incident management trend analysis within the supported production environment.
• Administered Volume groups and volumes using Logicalvolume manager.
• Installed/Configured Websphere 5.x/6.x and other Application Servers and Administration of Websphere Application Server 6.x with Network Deployment, and Extension Deployment on RedHatLinux.
• Configured File Systems, users and group for Oracle and Websphere.
• Decommissioning servers per Redhat standards.
• LVM experience with LINUX.
• Performance monitoring and tuning of Linux servers.
• Familiar with the Vmware esxi operating system and the guest operating systems.
• NFS mount points creation using Hitachi systems.
• Vm builds and configuration through Chef tool.
• Installation and configuration of RPM packages for upgrades.
• Configures NFS, FTP, IPTABLES, sudoers and enabling CRON.
• Troubleshooting and problem resolution of system performance and networking using nmon, sar, iostat, nmap, tcpdump, wireshark, starce etc.
• Maintained user account management, configured servers to register with Red Hat Network (RHN) Satellite Server, monitored servers - workload assessment, service console monitoring
• VSphere environment for over 2500 VMs including Windows 2003, 2008 R2, 2012 R2.
• Patch management and upgrades usingVMwareupdate manager.

  Strong knowledge on Server, Desktop and Application virtualization.

  Maintaining theVMwareESX Servers throughVMwareInfrastructure Client.

• P2V and V2V conversions usingVMwareconverter enterprise.
• Extensively worked on vMotion and Storage vMotion.
• Strong experience with DNS and DHCP.
• Worked on IBM server, Dell Power Edge, HP ProLiant BL/DL Servers.
• Understanding of networking concepts, (IE. Configuration of networks, router, TCP/IP, VLANs & Ethernets
• Experienced in installation, configuration, design and ongoing maintenance of Cisco router and switches.
• Experience in Windows 2000/2003/2008 &R2/2012&R2 server.
• Experience in Microsoft active directory.

Confidential, Malta, NY

Linux/VMware Administrator

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux servers using kickstart unattended installation in addition to PXE Boot, configuring of new servers and workstations using kickstart and autostart.
• Tuning of the Linux OS in order to increase performance as well as installation of new patches as needed, developed shell scripts to automate daily housekeeping tasks such as file transfers, Troubleshooting any and all problems with performance, upgrades and file transfers
• Mounted/un-mounted new file systems, mounted file systems on remote servers using NFS Server & client configurations, performed disk configurations and crash recovery
• Maintained user account management, configured servers to register with Red Hat Network (RHN) Satellite Server, monitored servers - workload assessment, service console monitoring
• Troubleshooting, networking, security, services, reporting, monitoring, database-backed management, capacity planning, strategic planning, documentation
• Established network security using Linux Firewall and troubleshoot problems relating to boot loaders (GRUB, LILO)
• Assisting with the software integration and turning software builds into RPM packages
• Resolve technical issues through diligent research, reproduction, and troubleshooting
• Work directly with other technical support staff, quality assurance, engineering, sales, marketing, operations, and administration to resolve problems
• Documented, performed and validated test cases based on client requirements
• Developed documentation for leveraged support teams
• Responsible for maintaining current software and hardware patch updates for all servers.
• Responsible for documenting and maintaining complete and accurate information for all active and decommissioned servers.
• Allocate IP addresses to the users and configure their systems according to the lab requirements.
• Document RIS/WDS, Linux Kickstart, and Unix Jumpstart procedures for team wiki.
• Troubleshoot network issues in the lab. Troubleshoot hardware issues with the servers, PCs, and HP devices.
• Team player with excellent communication and inter-personal skills

Confidential, Fishers, IN

Linux Administrator

Responsibilities:

• Installation, Configuration and Upgrade RHEL 5.x, 6.x, OEL 6.x and Solaris 10, 11 operating systems.
• Worked with UNIX flavors AIX/ LINUX administering systems. Patching software/Hardware.
• Installed and configured several hundred Red Hat Enterprise Linux 5/6/Windows Server 2003/2008 Servers in both Physical Blade and VMware ESXi Virtual Environment.
• Installed hardware on X86. 24hr on call support experience. Worked on backup solutions from Netbackup to recover or save data other than the OS.
• Installation and Configuration of Veritas Volume Manager, Logical Volume Manager and Redhat Cluster.
• Implementation of RAID techniques and the creation of Disk groups and volumes, plex using Veritas Volume manager.
• Backups and recovery of AIX operating systems.
• Decommissioning servers per IBM standards.
• LVM experience with LINUX/AIX.
• Troubleshooting problems with hardware and operating systems on multiple platforms working with multiple vendors to repair.
• Account and filesystem administration.
• Installation of software on multiple platforms.
• Worked on true DR on IBM servers. Brought back 4 servers with 30 LPARS. And recovered all server data and servers (OS, SAP)
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in RedHat Linux,HP-UX and AIX.
• Day to day trouble shooting for end users on UNIX/LINUX
• Configured NFS and OpenLDAP services in Red Hat Linux and Solaris systems.
• Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process.
• Performed setting up Configuration Server and Boot Server for Jumpstart process
• Installed and configured Redhat Linux using Satellite Server.
• Implemented and organized a rollout project which involves upgrade of servers using Redhat Satellite Server.
• Involved in OS upgrade and Server migration from Solaris and HP-UX to Redhat Linux.
• Was managing user accounts for the team access for Redhat Satellite Server. Also created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Worked on SAN/ Confidential storages with HBA card configuration and different level of RAID configuration.
• Helped to establish standards, policies and procedures for all aspects of Unix server environment like administration, documentation and configuration.
• Installation and configuration of XEN AND VMWARE VIRTUALIZATION and deploying the OS Linux and Applications (Oracle, JAVA) on the Guest Domains.
• Configured Resource Pool, Motion, Alerts, Alarms, NT Server, KVM, Network Appliance installation, configuration, and troubleshooting.
• Manage wide range of Cisco routers, switches, and network appliances.
• UCS and VMware installation/configuration/troubleshoot.
• Troubleshooting and resolving failures in the network and maintaining the security posture of the network.
• Good understanding of Lab builds and Network topology.
• Team player with excellent communication and inter-personal skills

Linux Administrator

Responsibilities:

• User administration, management & archiving.
• Performed automated installations of Operating System using Jumpstart, Kickstart for Linux.
• Installation of patches and packages.
• Installation and configuration of Apache, WebSphere.
• Disk and File system management through LVM (HP-UX, AIX, Linux)
• Experience with configuring and managing Virtual disks, Disk Mirrors and RAID 0, 1 and 5 levels.
• Provided functional and technical support, troubleshooting and diagnosing hardware and software problems, including desktop, laptop, WAN, LAN, and remote systems.
• Assisted in the installation and updating of software, as well as the setup and troubleshooting of all equipment.
• Provided functional and technical support, troubleshooting and diagnosing hardware and software problems, including desktop, laptop, WAN, LAN, and remote systems. Assisted in the installation and updating of software, as well as the setup and troubleshooting of all equipment.
• Maintaining the CPU & Memory utilization of Unix/Linux Servers reports on the WEB.
• Installation, setup, configuration, security administration and maintenance for flavors of servers.
• Implemented Security Hardening per company policy using Solaris 10 features.
• Supported 24/7 high availability production servers
• Complete periodic checks of production and development systems; CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Provided top level technical support for HP ProLiant Server hardware and software issues and coordinated all Server related change activity within the Data Center.
• Responsible for documenting and maintaining complete and accurate information for all active and decommissioned servers.
• Demonstrated ability to gather relevant information and diagnose issues effectively and efficiently
• Assisted in troubleshooting user problems relating to Network Connectivity, and TCP/IP configuration.
• Unix Analyst for the Unix to Linux migration effort, which involves a great deal of coordination work between the different Applications team, Firewall team, SAN team, Testing and user groups for the successful migration of the servers.
• Helped the Application owners, Server Type Owners to understand what the different services that are currently used by their Application in Unix environment.
• Installation, Configuration & Upgrade of the newly built Redhat Linux 5.x and the existing HPUX, AIX operating systems.
• Worked with outside vendors to find the best hardware and software solution.
• Handled the tasks of preparing agendas and organize meetings. Worked with medical officer for solving critical issues.
• Preventative and proactive system monitoring functions and real-time responses encompassing: Systems Administration, OS Level SAN Administration, Backup and Restore and Security Remediation.
• Configured and maintained servers using VMware ESXi. Experience in working with adding new Disks to the VM from the Hostgroup and
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
• Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS on Several workstations.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux
• Installation, Upgradation and Management of packages through RPM and also take care of dependencies.
• Performance monitoring and tuning of Linux servers.
• Creating virtual PCs, installing OS and software using VM ware.