SUMMARY

• 8+ years of IT experience in large - scale enterprise implementation and support. Proficient in various aspects of Server Computing Infrastructure Management.
• Experience in Installation, configuration, and System Administration with Linux (RHEL 7/6/5/4),SuSE Linux 10/11/12, Solaris (11/10/9/8), HP-UX (11.x/10.x),AIX (5.x/6.x) and Windows (2008/2003/2000/ NT) administration.
• Experience in building Servers using Kickstart for Linux, Jumpstart and Flash Archive for Solaris, Ignite for HP-UX and exposure to NIM for AIX installation.
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUMrepository inRedhat Linux.
• Experience in building RedHat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with System Imager that automates Linux installs.
• Experience in installation, configuration and administration of VMware based virtual servers using ESX/ESXi servers, vSphere and Virtual Center.
• Experience with OpenStack(Nova, Swift, Glance, Keystone, Neutron)
• Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server, Sun Cluster, RedHat Cluster Suite and HP Service Guard.
• Experience in installing, configuring the Volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM), Solaris Volume Manager (SVM), Veritas File System (VxFS).
• Experience in installing, configuring and maintaining Application Servers like WebSphereand Web Logic, Web Servers like Apache HTTP and Tomcat on UNIX operating systems.
• Extensively worked on administering NFS, NIS, NIS+, DNS, DHCP, LDAP, Mail servers, Samba Servers.
• Extensively worked on Solaris 10 Container technology, responsible for creating, configuring and maintaining ZONES and installing applications on individual zones (global and local zones).
• Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on UNIX & Linux Servers.
• Worked on DevOps, puppet, chef, Jenkins, Github tools.
• Experience in configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris and Global File System (GFS) in Linux.
• Experience in installing and configuration of OpenStack.
• Experience in User & Security administration, multiple backup & recovery technologies (Snapshots, Disaster Recovery plan) and maintenance of various activities.
• Expertise in configuring IPMP (IP network MultiPathing) in Solaris and Bonding in Linux.
• Capacity planning and recommending hardware for SAN (Storage Area Network) implementation and replacements.
• Experience working on Oracle Real Application Cluster (RAC) database, which provides highly available database solutions and supported MS SQL Server and DB2 teams.
• Experience working on Dell Quest TPAM privileged access control to get root password for Unix servers, enroll new servers, network appliances to TPAM and to ensure connection between servers.
• Experience on Live Upgrade, migrating from UFS root file system to ZFS file root system in Solaris.
• Involved in Data Center Migration for P2P, V2V and P2V environments.
• Storage experience in managing NAS, EMC storage arrays and Veritas Net Backup administration (VNB).
• Extensive experience in doing backup to tapes periodically using job scheduling Crontab& at
• Expertise in monitoring System resources and Kernel parameters to enhance the system performance.
• Extensive experience in Shell (Bourne, Korn) and knowledge of HTML, Java Scripts, SQL, Perl Scripting.
• Administering operating systems, hardware, and peripheral components, and maintain databases.
• Expertise in designing and implementing LANs, WAN services and IP Addressing schemes.
• Excellent communication, leadership, mentoring, written and problem solving skills.

TECHNICAL SKILLS

Operating System: RedHat Linux 3/4/5/6/7,SuSE 11/12, Ubuntu 13/14/15/16,Solaris 11/10/9/8, HP-UX (11.x), IBM AIX (5.x, 6.x)& Windows NT 4.0/2000/2003/ XP.

Hardware: Sun SPARC T5-2/M4000/M3000, Sun X3-2L, X4440, X4150, Sun Enterprise E 5000/5500/6500 , Sun Fire 3800/4800/6800 , E10K/15 Series server, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade, Nutanix Servers

Third Party Tools: Veritas Volume Manager, Logical Volume Manager, RAID, Redhat Cluster, Pacemaker. Veritas Cluster, Sun Cluster, HC Service Guard, VMware ESXi.

Cloud: Openstack,AWS

Automation Tools: Puppet, Chef, Github and Jenkins

Web Application Server: Apache, WebSphere, Weblogic, JBOSS, Tomcat.

Network/Naming Services: NIS, NFS, AutoFS, DNS, DHCP.

Storage: SAN, NAS, DAS EMC Storage, iscsi, SAS, HP and IBM Storage, HDS.

Languages: Unix Shell Scripting, Perl Scripting, HTML.

PROFESSIONAL EXPERIENCE

Confidential, Woodland Hills, California

Sr. Unix/Linux Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun-Solarisoperatingsystems.
• Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
• As a Linux administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing, configuring & job scheduling using Cron.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Worked on installation, configuration, and volume/File system management using Logical Volume Manager (LVM), Veritas Volume Manager, and SolsticeDiskSuite (Solaris Volume Manager)
• Installation and configuration of the Redhat Pacemaker Active/Passive Failover cluster for IBMInformix application.
• Testing and validating all the servers hosted/built on VMware ESX/ESXi using enterprise systems.
• Installed and configuredNFS, NIS, NIS+, DNS, DHCP, LDAP, Mail servers, Samba Servers.
• Built virtualized Linux servers on ESX and blade servers to host multiple applications on same chassis across different server hosts.
• Working on VMware guest host operating system installation, Virtual Machine server provisioning post configuration of virtual machine.
• Responsible for setting up a disaster recovery plan for the servers, which includes in development of programs for synchronized backups.
• Working on VMware ESX 5.5 and providing continuous support for Virtual Linux and Solaris VMs.
• Managing the system life cycle with Puppet and Manifests.
• Managing the OpenStack ecosystem provisioned for the Continuous Integration and Continuous Development,
• Creating of tenants and projects, creating of network stack, instances, security rules using Horizon dashboard in OpenStack.
• Managing the Controller node, multiple Nova compute nodes and Network nodes.
• Worked on DevOps, Puppet, Chef, Jenkins, Github tools.
• Cross Platform Migrating theIBM Informix application from Solaris to RedHat Linux.
• Preparing the Shell Scripts to manage the day to day admin activities.
• Modifying the 200 + IBM Informix Solaris Shell scripts to RedHat Linux compatible during migration.
• Created Filesystems from local storage as well as NFS partitions for application portability.
• Applied patches and packages on Linux servers using rpmRedHatPackage Manager and yum tools.
• Ensured automatic startup of different services by using chkconfig.
• Providing day-to-day user administration like adding/deleting users and managing users queries. Shell programming for routine administration tasks.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Configuring the serves to monitoring for various hosts and service level checks.
• Configuring Netbackup client on the servers to take backup.
• Configuring backup schedule and related components in the Netbackup server.

Environment: SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, Nutanixservers(NX-8000,NX-6000), Solaris 11/10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM Informix (11.7 FC8),RedHat Linux (RHEL 5/6/7), SuSE Linux (11/12)

Confidential, Hartford, Connecticut

Sr. Unix/Linux Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun-Solaris, HP-UX and AIXoperatingsystems.
• Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
• Perform testing, evaluation and validation of enterprise systems.
• Performed Linux OS management tasks which include installing packages using rpm and zypper, creating soft and hard links, YaST for installing and configuration on SuSE operating systems
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Configured and maintained Network Multipathing inLinux and Solaris.
• Worked on installing and configuring VMware/ESX Servers for virtualizations.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Server.
• Added Service Groups and resources based on the requirement with appropriate dependencies. Documented the in change design/Architecture diagram of Veritas Cluster Servers, RHCS, & Service guard.
• Installation and configuration of Veritas Volume Manager, LVM, Veritas File System and Veritas Cluster
• Installed the Operating System on Solaris and Linux servers and blades over the network.
• Built servers according to standards specified as per individual applications.
• Built virtualized Linux servers on ESX and blade servers to host multiple applications on same chassis across different server hosts.
• Develop and maintain an expert level understanding of the OpenStack project ecosystem.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks.
• Provide 24 X 7 on-call UNIX and Linux support on a rotating schedule basis.
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks.
• Created Filesystems from local storage as well as NFS partitions for application portability.
• Applied patches and packages on Linux servers using rpm RedHat Package Manager and yum tools.
• Configured Opsware on the servers for event tracking.
• Implemented virtual, integrated, management and proxy IPs on the machines to serve different purposes.
• Worked on enrolling new IDs into Dell Quest TPAM password managerand assisting team members to fetch root passwords.
• Performed troubleshooting on filesystem failure, network failure and disk failures etc.,
• Setting up VSFTPD, NFS and Samba servers for file sharing.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Creation and scheduling of Cron Jobs such as for Backup, System Monitoring and removal of unnecessary files.
• Develop, Maintain, update various script for services (start, stop, restart, recycle, cron jobs) Unix based Korn shell, Bash.
• Updated & Running the various source code for migration & updating follow-up the release management.

Environment: SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers,Nutanix(NX-1000, NX-3000,NX-6000) CISCO UCS, Solaris 11/10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM AIX (5/6/7), RedHat Linux (RHEL 5/6/7), SuSE Linux (11/12)

Confidential, Houston, Texas

Unix/Linux Administrator

Responsibilities:

• Administered 2000+LINUX/UNIX servers running Redhat Linux 4/5/6,Sun Solaris 9/10 and Virtual machines hosted on ESXi servers.
• Installed & configured HP-UX 10.23/11.00 with administration and troubleshooting.
• Worked in Data Center provided 24/7 supporting IBM, HP, Sun blade.
• Installed and configured RedHatLinux, Solaris operating system using kickstart, Jumpstart.
• User administration using UNAB (UNIX Authentication Broker) and CA Control Minder tool for Linux and Solaris user accounts. This Provides integration into company Active Directory /LDAP environment.
• Installation and configuration of Tomcat.
• Implemented SUDO, SSH and other security tools and security compliance.
• Worked on VMware guest host operating system installation Virtual Machine server provisioning post configuration of virtual machine
• Maintained VMs build using QEMU and KVM.
• Extensively worked on Configuration management tools such as Chef, Puppet for automation
• Installed, configured and troubleshooting of OpenStack on Linux Servers.
• Experience on various VERITAS suite of products on RHEL and Solaris.
• Volume Manager (VxVM) administration including installations, configuration of DG (Disk group), Volumes (Plex and VM), and file systems. Deport and Import of DG, Root disk Mirroring.
• Experience working onLogical Volume Management (LVM) administration on Linux. Created VGs, LVs, PVs and disk mirroring.
• Experience on working with Monitoring tools such asNagios, Cacti etc.,
• High Availability using Redhat cluster and VERITAS Cluster Servers for failover and redundancy purpose.
• Administered Zones onSolaris 10, Solaris zones (containers)using utilities Zonecfg, Zoneadm etc.
• Solaris LDOM configuration and administration.
• Upgraded firmware on Oracle /SUN and IBM hardware such as X4140, M5000.
• Debugging issues that are effecting the environment and understanding the root cause and identify a solution.
• Extensively worked in data and database migration from older machine to latest configurations.
• Configured IPMP, NIC Bonding and Storage Multipathing
• Troubleshooting various problems, logging call with vendors - Oracle, Symantec and RedHat.
• Fixing the hardware failures by coordinating with management and vendors for an uninterruptible delivery.
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUM repository in Redhat Linux.
• Worked on server consolidation and migration from one data center to another data centers.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Administering operating systems, hardware, and peripheral components, and maintain databases. - Replaced faulty - Disk, Power supply, CPU Fan, HBA cards.
• Debugging issues that are effecting the environment and understanding the root cause and identify a solution.
• Fixing the hardware failures by coordinating with management and vendors for an uninterruptible delivery.

Environment: CISCO UCS, HP/IBM Blades, Solaris9/10,RHEL4/5/6,M5000, T2000,T5140,SuSE Linux 10/11, Netra X1,X4140, X4170 SPARC T- 4 6800/4800/480 , HP-UX 10.x/11.x,SunFire 6900, IBM x3550, x3650 M3, X4600,IBM series 670, p5 595, series Servers

Confidential

Unix/Linux Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Solaris, Linux (RedHat and SuSE), HP-UX, AIX operating system.
• Installation and configured Solaris 10 with Zone configuration.
• Experience in configuring RedHat Cluster Suite, Veritas Cluster Serverand HP Service Guard.
• Installation of patches and other software packages.
• Configuration of NIS, NIS+, DNS, NFS, Sendmail, Samba, Apache for multiple environments.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Understanding of Network protocols like TCP/IP, BGP, HSRP, NAT, IPsec and worked on configuring Hardware/Software firewalls.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers.
• Installation and configuration of Veritas Volume Manager, LVM,Veritas File System and Veritas Cluster Server.
• Creating and maintaining Users, Disk space, LVMs and Process Monitoring in Linux.
• Package management using RPM and errata using UP2DATE in 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
• Experience with Volume creation resizing and troubleshoot to the client’s development/production environment using Veritas volume Manager.
• Managed Physical and Logical volumes, Volume Groups in Linux.
• Application & Production Support and on call support.
• Troubleshooting hardware, software and configuration problems for various protocols and topologies.
• Updated & Running the various source codes for migration & updating follow-up the release management.
• Creation of users, mounting home folders and respond to general user queries regarding mounting issues.
• Configured NIS Master and Slave servers and NIS clients.
• Analyze, review and alter existing network to increase operational efficiency or adapt to new requirement.
• Co-ordinate with Backup Operator regarding daily backups, monitoring backup servers and perform database, application and system backup in the absence of the backup operators.

Environment: Solaris 8/9/10, RedHat Linux,SuSE Linux, HP-UX and AIX, VERITAS Volume Manager, VERITAS NetBackup, Veritas Cluster Server, Redhat Cluster Server.

Confidential

Unix/Linux Systems Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Redhat/SuSE Linux, Solaris and HP-UX operating system.
• Configuring NFS, NIS, NIS+, DNS and LDAP.
• Worked on Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment.
• Performed automated installations of Operating System using Kickstart and Jumpstart for Linux and Solaris.
• Configured and used yum repository for packages and patches installation in Linux environment.
• Worked on Installation and configuration of VMWare ESX servers.
• Installation and configuration of Logical Volume Manager, Veritas Volume Manager, Veritas File System, Veritas Cluster Server.
• Extensive use of volume management tool using Veritas Volume Manager to create disk groups, volumes with RAID architecture and layered volumes.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Created Zettabyte file system (ZFS) in Solaris 10. Exported ZFS from local zones to local zones.
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Expertise in setting up SystemImager software for automated installation, software distribution, configuration changes and operating system updates to a network of Linux Machines.
• Experience in Redhat Cluster Suite and Global Filesystem, Redhat Network Satellite Server.
• Creating Metadevices, soft partitions, mirroring the devices and metasets.
• Space allocation to the metadevices, detaching and clearing the devices if not in use.
• Troubleshooting and building high end servers and midrange servers.
• Performed automated installations of Operating System using Jumpstart for Solaris, kickstart for Linux and Ignite for HP-UX.

Environment: Solaris 10/9/8,Linux RHEL 5,SuSE Linux 10.x, Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000, M5000, HP L/N/RP series,IBM Power 570,p5 505 Express servers, Ubuntu 6.x/7.x, Apache,SAN EMC/HP/Hitachi, Veritas Volume Manager, VCS, VeritasNetbackup.

Confidential

Unix Administrator

Responsibilities:

• Installation, Configuration & Upgrade of operating systems Solaris and Linux and Installation of Packages and patches.
• Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS on Several workstations.
• Proficient in configuration ofVERITAS Cluster Server (VCS), fail over test of VCS groups, adding/modifying VCS resources such as File Systems.
• Disk and File system management through VERITAS Volume Manager & Solstice Disk Suite on Solaris and other logical volume manager for Solaris and Linux.
• Configuration of Hardware and Software RAID on Solaris and Linux Servers.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Configurations of NIS, NFS, send mail on Solaris and Linux.
• Providing day-to-day user administration like adding, deleting and modifying users and groups.
• Interaction with vendors for Hardware and software supports.
• Troubleshoot network systems and recommend improvements to network.
• Responsible for day-to-day System Administration for SUN SOLARIS and Linux Servers.

Environment: Solaris 8,9, Linux, SUN Netra Servers, Sun Enterprise 4500/6500/450/420 R/250 server, Sunfire 6800/4800/480 , E10k/15K.

Confidential

Linux Server Support

Responsibilities:

• Managed 1900+ servers.
• Experience installation RHEL OS and configured required network on HPC cluster.
• Installation, Configuration & Upgrade of Solaris, AIX, HP-UX, Linux (Redhat and SuSE) operating system.
• Installation, Configuration & Trouble Shooting of VXVM under sun Solaris 8, HP-UX.
• Managed HPC cluster, performed hardware, BIOS and application upgrade.
• Configured and managed Apache web server and Managed software and hardware RAID systems.
• Managed user accounts and authentication process by NIS service.
• Managed System Firewall utilizing IP Chains, IP Tables. Implemented SSH SSL.
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Worked on incidents problem and change tickets related to AIX/Unix/Linux server.
• Managing (adding/removing) disks partitions.
• Worked on multiple accounts with Ticket assessment on daily basis.
• Administration and maintenance of WAS ND clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments.
• Developed web service integration layer for Web Sphere Portal. Install and configure Web Sphere Portal on AIX, UNIX and Windows.
• Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
• Perform auditing on UNIX/Linux Servers for security compliance and monitoring.
• Department Security Focal (Managing all the security related issues like Apars, Cirats, Health.
• Worked on security activities (QEV, Health Checks, Priv ID revalidation & PAR) as per ITCS104.
• Worked on Server commission and Decommission.
• Monitoring the System Performance and tuning the kernel to enhance system performance.
• Worked on Backup issues and resolving as required.
• Job Scheduling and Automating process using CRON & AT.
• Worked on Citrix environment user management.
• Administration of Tivoli Storage manager 5.1.4 client.
• Performing User ID creation, modification, deletion and maintain server security.
• Monitoring system logs and the root's email for important messages such as errors and warnings or hardware fail errors.
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS.Created mount points for Server directories, and mounted these directories on AIX Servers.
• Configured and administrated LPARs. Installation of patches and other software packages.
• Configuration of NIS, NIS+, DNS, NFS, Send mail, Samba, Apache for multiple environments.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.

Environment: Solaris 8, RHEL 3,4, AIX 5.2, HP-UX 11.x, Windows 2000/2003, Sun Enterprise Servers 6800, 4800, v480, E5500/E4500 and E3500,Veritas File System 3.0, ORACLE.