SUMMARY:

• Over 8 Years of Experience in UNIX/LINUX Systems and Network administration for Sun Solaris 9, 10, Linux RedHat (RHEL 4, 5, 6), CentOS, SUSE, Debian, OEL & HP - UX 10.x, 11.x.
• Experience in installation, configuration file system management through Logical Volume Manager (LVM), VERITAS Volume Manager (VxVM), Solaris Volume Manager (SVM).
• Configuring and maintaining virtual server environment using VMWARE ESX/GSX, VSphere,VCenter.
• Volume and Filesystem management using Veritas Volume Manager (VxVM) and VeritasFilesystem (Veritas Storage Foundation).
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), RedHat HA (RHCS), and MSCS.
• Good knowledge of RAID groups and setting up NFS,CIFS and iSCSI protocols in SAN/NAS environment on HPUX 11.23/11.31 and Redhat LINUX.
• Experienced in system administration, System planning and design, co-ordination and communicate at group level and user level.
• Configuration, implementation, troubleshooting and administration of NFS, NIS, DNS, and LDAP on Solaris and Linux environment.
• Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Linux environment.
• Experience in Patch management, Disk management, Security, troubleshooting, Disaster Recovery and Planning.
• Experience in SAN and VERITAS NetBackup administration.
• Performing regular day-to-day Systems Administration activities such as User Administrations, Disk Management, Package Install, Patch Management, Storage Management, Performance Monitoring; Log files Monitoring, Jobs Scheduling, NFSAdministration and Disaster Recovery/fail-over exercises.
• Proficient in Shell Scripting (Bash), Sed&Awk.
• Ability to plan, schedule and execute projects on time.

TECHNICAL SKILLS:

Operating Systems: Linux (Red hat - RHEL 3/4/5/6),Fedora Core 17.x/16.x, Ubuntu 12.x/13.x, HP-UX, Solaris, Windows 03/00/NT4.0.

Hardware: HP DL380 G5/G6/G7/Gen8, Dell Poweredge 1950, 2300, 2450, R810. IBM RS/6000, IBM Blade center, JS20, JS21, HS20, pSeries 570, 590, 595, 650, 630, 670, 780, 770, 750, 740, 730 SUN Enterprise 450.

Web Servers: Apache (httpd), apache-tomcat, jboss, weblogic. Tomcat, Apache, WebSphere, Apache Http Server, IIS 4.0/5.0, MQ Series.

Languages: C, Clearcase, Shell scripting Ksh& Bourn Shell, JavaScript, HTML, JAVA, C, C++, Korn Shell programming, PL/SQL

Databases: Oracle 8i/9i/10g, DB2, MS SQL SERVER 7.0/2000, SyBase.

Networking: NIS, NFS, AutoFS, DNS. TCP/IP, DNS, DHCP, Cisco Routers/Switches, and LA

Other Skills: VMware, VCenter Server, VMware Server, Xen, Solaris Zones. LPAR, NIM, TSM IBM tape libraries.PROFESSIONAL SUMMARY:

Client: Confidential, Irving, TX

Role: Linux System Administrator

Responsibilities:

• Worked as Linux Administrator Supporting the Server farm in 24X7 Production Environment.
• Supported Red Hat Linux (RHEL 5.6) and Fedora Core 18.x/17.x Servers
• Installation/Administration of RHEL 5.6 and Fedora on Multiple Servers (configuration, testing on both physical and virtual machines).
• Install and configure various services like DHCP , NFS , DNS,Apache Web Server , NIS , LDAP , Samba , SSH , FTP/SFTP, Sendmail / SMTP, Telnet, RPM Package Management, File System Management
• Developed Shell Scripts for automation of daily tasks.
• Develop Linux shell scripts to accomplish redundant tasks to simplify in distributed administration.
• Worked on Security/Authorizations; Created users with limited and full root privileges. Create and manage sudoers.
• Perform day to day Linux administration such as user accounts,logon scripts,directory services, file system shares, permissions. Support Oracle database.
• Setup NFS and Samba File sharing on Linux and Windows servers .
• Develop and maintain the documents, library and procedural documents of the system.
• Utilized Remedy for data center service requests (Network requests for IP’s, ILO’s, and DNS changes).
• Acquired comprehensive requirements from Project Managers, Team Leads pertaining to the servers to be migrated.
• Responsible for resolving network issues using network tools like ping , tcptraceroute , traceroute , tcpdump .
• Performing change management as per company standards in accordance with the hardware provider.
• Horizontal and Vertical Clustering. Setup Node Managers and Admin Servers. Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Setting up cron schedules for backups and monitoring processes.
• Automated server building using System Imager, PXE,Kickstart and Jumpstart, for Solaris and RHEL Servers.
• Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Excellent in patches and packages installation on Linux/UnixEnvironment.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Experience in Linux kernel configuration.
• Updating YUM Repository and Redhat Package Manager (RPM).
• Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
• Building Customized Scripts / LVM for the SAN (HOST) based migrations.

Environment: Redhat RHEL 6.x/5.6, Fedora Core 18.x/17.x, UBUNTU 12.x/13.x, Logical Volume manager, Server Dell R10, R410, R910, HP-DL580 servers, DNS,NFS,SMTP.

Client: Confidential, Lakewood, CO

Role: Solaris/Linux System Administrator

Responsibilities:

• Involved in UNIX/LINUX System and Network administration in Sun Solaris (9/10), HP-UX 11.31, Linux (RedHat 5/6) servers running different Database and Middleware Applications.
• Storage Provisioning, Volume and Filesystem Management using LVM, Veritas Volume Manager and VeritasFilesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
• Build two new VMware ESX Server 4.x/5.x on HP HW running Red Hat Enterprise Linux & Created different virtual machine like Debian, windows 2003&2008 server, SuSEenterprise Linux using VMware Virtual Infrastructure Client tool and configured with EMC storage box.
• Supported around 200+ whole root zones running on Solaris 10 environment.
• Maintained 15 VMware ESX server connected with two EMC VNX SAN box and managed of two Cisco MDS switch using Fabric & Device management tool.
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), MSCS, RHCS.
• Configuring and maintaining virtual server environment using VMWARE ESX, VCenterVSphere, and Solaris 10 Zones.
• Installation and Configuration of Sun Enterprise Servers, HP and IBM Blade Servers (C6000 & C7000), HP Itanium, Configured Enterprise UNIX/LINUX systems in heterogeneous environment (Linux, Solaris, HP-UX) with SAN/NAS infrastructure across multiple sites on mission business critical systems.
• Setup, Implementation, Configuration, documentation of Backup/Restore solutions for Disaster/Business Recovery of clients using OMNIBACK on UNIX and LINUX platform.
• Performed quarterly patching of Linux,Solaris and HPUX servers on regular schedule. Involved in up Network/SAN based ignite images for HPUX PA RISC and integrity servers.
• Good knowledge of RAID groups and setting up NFS, CIFS and iSCSI protocols in SAN/NAS environment on HPUX 11.31 and Redhat LINUX.
• Implementation of oracle RAC 10g on HPUX blades and Itanium servers with Redhatlinux RHEL 5.x/6.x along with SAN storage on EVAs. Also implemented and support HPUX Service guard on Linux servers.
• Involved and set up migration for UNIX/Linux server and SAN storage between data centers and also application migration and testing. This included SAN/Application migration and testing various functionalities of key applications.
• Installing, setup of proliant blade BL,DL series with fiber channel connectivity, Cisco GESM interconnect switch, configuring the connectivity, setting up JBOSS cluster, setting up oracle RAC cluster, configuring load-balancing on apache, on Redhat Linux 5.x Setting up NIS/NFS on RedHat servers.
• Setting up JBoss cluster and configuring apache with JBosson RetHat Linux. Proxy serving with Apache. Troubleshooting Apache with JBoss and Mod jk troubleshooting for the clients.
• Setting up the lab environment with Tomcat/Apache, configuring the setup with F5 virtual load balancer for customer application.

Environment: Redhat RHEL 6.x/5.6,Logical Volume manager, VMware ESX Server 4.x/5.x,Veritas Cluster Server (VCS), Tomcat/Apache,MSCS, RHCS, Sun Enterprise Servers, HP and IBM Blade Servers (C6000 & C7000)

Client: Confidential, Dallas, TX

Role: Solaris/Linux System Administrator

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 4.x and Sun Solaris 10/9.0/8.0 using Kickstart, Jumpstart Installation respectively.
• Upgraded Solaris 8 to 9 and 9 to 10 on Sun servers and workstations. Added necessary patches using patchadd utility and scripts.
• Controlled disk operations, disk group operations, volume operations and volume configurations using vxdisk, vxdg, vxassist, vxmake and vxvol in Veritas Volume Manager.
• Configured Printers, Print Server and Print Clients using commands like lp, lpstat, lpadmin, lpfilter&GUI.
• Configured and administered Samba to provide file services, resolved various inter-operability issues between Windows NT&Solaris platforms.
• Installation, Setup and Configuration of WebLogic 9.0/8.1 application server.
• Deployed Portlets manually using Admin Console.
• Disk Management using different RIAD technologies in Solaris and Linux using Veritas Volume Manager and LVM.
• Veritas Cluster Installation and Configuration along with Resources and Service Groups Configuration in VCS.
• Configuration and administration of DNS, LDAP, NFS, NIS and Samba inRedHat Linux, and Sun Solaris.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Administered and Managed Network Applications and Services like NFS with Hummingbird connectivity V7.1.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files using access modes.
• Written Shell scripts to run Batch Jobs on Sun Solaris and RedHat Linux servers.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels, and maintaining a log of changes for tracking.

Environment: RHEL 4.x, Sun Solaris 10/9.0/8.0,Windows NT & Solaris, WebLogic 9.0/8.1,Logical Volume manager.

Client: Confidential, Phoenix, NV

Role: System Administrator(Linux-UNIX)

Responsibilities:

• Provisioning and installing of Linux RHEL, Centos operating systems on x86 and Dell PowerEdge server. This included provisioning the environments on VMs created on vSphere 4.0
• Experience on using XEN and KVM virtualization on Linux servers.
• Performed Disk administration using LVM’s and implemented file system expansion
• Performance Analysis of resources like CPU, Memory, Disk and Swap from command line using commands like prstat, vmstat, sar, iostat, swap
• Troubleshooting webserver Apache 1.3x; Configuring NIC bonding on Linux server.
• Configuring password less login through SSH. Generating key using ssh-keygen
• Patch and package administration for installation of patches as per the company policy and installation of packaged application
• Configuring and implementing DHCP, DNS, SAMBA installation and configuration on different. Platforms in heterogeneous Network environment
• Worked on monitoring tools like MRTG, Netcool, Gomez
• Editing crontab adding and deleting automated scripts
• Experience in Backup/Recovery using tar,CPIO
• User, Group management for all the UNIX servers and also used sudoers on Linux
• Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration
• Creating and modifying Standing Operating procedures for the team.
• Following change management process and tickets using Remedy tool.
• Support on-call on rotation basis 24 * 7

Environment: Redhat EL 3.x, 4.x, Logical Volume manager, Server Dell R10, R410, R910 servers, DNS,NFS,SMTP, Web server Apache 1.3x

Client: Confidential

Role: UNIX/Linux Systems Administrator

Responsibilities:

• Responsible for day-to-day System Administration for Linux RedHat servers.
• 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.
• Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
• Responsible for troubleshooting end user and application problems.
• Veritas File system and Veritas Volume Manager.
• Creating User accounts, Mail account, groups, printer etc.
• 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.
• 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.
• Training for users to use the program.

Environment:Solaris 10/9/8/2.x, IX 4.3, 5.1/5.3L,Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers, Ultra Enterprise 2/1 Servers