Summary:

• Over 9 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 .
• Experience in Jumpstart/Kickstart installations for Sun Solaris and Red Hat Linux Servers.
• Involved in installation, configuration and administration of RHEL 5x/6.x Servers.
• Installation of Packages, Patch Management and Upgrades.
• Involved in upgrading production Linux and Solaris , development QA servers
• Involved in migration and consolidation of Unix Servers in Production data center.
• Involved in configuring, administration and troubleshooting Linux/Unix Servers which are connected to Storage such as NetApps, EMC.
• Experienced working with Fiber Chanel and iSCSIStorage Area Networks SAN .
• Experienced in configuration maintaining Redhat Cluster, Veritas Cluster server, Netbackup, Veritas volume manager and Veritas file system.
• Experienced in Virtualization Products KVM, XEN
• Experienced in creating and maintaining users, profile, security rights, disk space and process monitoring.
• Experienced in file system administration, resolving system errors, crashes and file system errors.
• Possess hands on experience with the F5 on setting new VIP, iRules, SSL, Pool Setup.
• Experienced in setting Private Cloud using Eucalyptus/Openstack
• Experienced on Amazon EC2 AWS and Rackspace
• Experienced on Puppet configuration management tool
• Creating new file systems, mounting file systems and unmounting file systems.
• Installation, configuration and administration of apache/tomcat, samba send mail,
• Security Configuration, Network, System Monitoring on UNIX based Servers Basic hardening of the system and network security, attaining the goal of allowing only the valid users/ports into the system.
• Experience in Managing various Network related tasks such as TCP/IP, NFS, DNS, DHCP and SMTP.
• Configuring and Administering NIS, LDAP and FTP on Linux and Sun Solaris server environment.
• Experienced in writing Shell scripts using bash, python for group/user administration, startup/shutdown and other system related task.
• Experienced in Akamai CDN
• Experienced in Aicache
• Experienced in Apache, Tomcat, Jboss
• Experienced in building/compiling packages from source
• File systemmaintenance, process automation of databases, applications and backup
• Experience in Troubleshooting Hardware, Storage, Application Bottlenecks. System Recovery, Crash dump analysis and performance tuning.
• Have very good experience working with Change Management for scheduling changes on Production and UA servers using
• Experienced in different tools for monitoring the health checkups using Nagios, Cacti, Zabbix and OSSEC.
• Managing user accounts, system security, change management, documenting and following Company Standards
• Experienced in supporting 7x24 production computing environments, on-call and weekendsupport

Certifications:

Technical Skills:

Professional Experience:

confidential

Linux/ UNIX Administrator

Responsibilities:

• Responsible for resolving network issues using network tools like ping,tcptraceroute, traceroute, tcpdump.
• Develop and maintain the documents, library and procedural documents of the system.
• Developed Shell Scripts for automation of daily tasks.
• Installation/Administration of RHEL 5.6 and Fedora on Multiple Servers configuration, testing on both physical and virtual machines .
• Supported Red Hat Linux RHEL 5.6 and Fedora Core 18.x/17.x Servers
• Worked as Linux Administrator Supporting the Server farm in 24X7 Production Environment.
• 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.
• 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,logonscripts,directory services, file system shares, permissions. Support Oracle database.
• Setup NFS and Samba File sharing on Linux and Windows servers.
• 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.
• 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.

confidential

Linux/UNIX 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,Solarisand 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 JBossonRetHat 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

confidential

UNIX / Linux Systems Administrator

Responsibilities:

• Installed configured and built servers using Jumpstart and Flar Images Servers included v240, V440, V880, E6500, E4500, E450 . Provided support to mission critical applications spread over 200 servers.
• Installed and configured Solaris 8, 9, 10. Configured Zones and containers for Solaris 10.
• Configured Logical Volume Manager, Solstice Disk Suite, VxVM, VxFS. Configure RAID 0, RAID 0 1, RAID1, RAID 5.
• Provided security to all servers thru OS hardening, Patch management and Package management.
• Provided Level 3 Support for all Solaris Linux issues. Was the Key point of contact for all critical support related issues.
• Designed, implemented maintained a two node Veritas Cluster.
• Installed VMware ESX on Dell Servers and configured Solaris 9/10/ Red Hat Linux 5.x / Windows 2000 virtual machines for various applications.
• Prepared server availability report for the management.
• Working with LDAP schema for Sun One LDAP server 5.x.
• Installed Iplanet web server on Linux and Solaris boxes.
• Planned Implemented Patch and Packages installations.
• Upgraded Solaris OS Live upgrade from Solaris 8 to Solaris 9 .
• Configured VMware and installed several Linux and Windows Operating Systems according to the client needs. Also involved in maintenance and Troubleshooting of VMware.
• Implemented Root Mirroring for systems using VxVm Veritas Volume Manager and Solstice Disk Suite.
• Upgraded Veritas Volume Manager from 3.x to 4.x
• Supported databases like Oracle Web servers like Apache, Tomcat other proprietary applications.
• Installed Configured and Managed NIS, NFS, DNS and Send Mail. Configured DHCP Red Hat Linux server.
• Built a Linux kickstart server on x86 machine. Wrote shell scripts using C shell to initiate kickstart.

Environment: E6500, E4500, E450, V880, Ultra series, Sunray appliances, DLT tape libraries, Solaris 6/7/8, Solstice Disk Suite, VMWARE,E3500, E4500, E6500, Veritas Cluster, Veritas Volume Manager, Veritas File System, Redhat Linux 4.x, Shell scripting, Oracle, Apache, Tomcat.

confidential

Unix/Linux System Administrator

Responsibilities:

• Installed, configured and provided 24 7 support to 500 Enterprise Sun Servers E6800, E6500, E4500, and E450 running mission critical applications.
• Built more than 1000 servers from scratch and applied relevant patches on existing servers.
• Built 25 Red Hat Linux 8.0 servers from scratch and provide 24 7 production support.
• Planned, designed and implemented 4 Node Veritas Cluster on E6800. Troubleshoot Veritas Cluster issues which arose because of different cluster versions 3.2 3.5.
• Migrated Sun Cluster 3.1 to Veritas Cluster 3.5.
• Installed, configured and supported NFS / NIS / NIS in a heterogeneous environment.
• Optimized performance by tuning Unix OS, kernel, memory, I/O, Database, Applications and Networks.
• Installed, configured and supported RAID 0, RAID 1, RAID 0 1, and RAID 5 on SANarrays.
• Troubleshoot all hardware and software issues for Sun Enterprise Servers.
• Interacted with SUN Support for resolving critical issues.
• Installed and configured JUMP START Server.
• Jumpstarted more than 3000 Sun servers.
• Decommissioned small and obsolete servers and consolidated them into one large server.
• Planned, Documented and implemented Disaster Recovery policies.
• Restored files from Snapshots. Troubleshoot day-to-day problems on SAN/ NAS.
• Ensured Service Level met and exceeded customer satisfaction goals. Received Recognition Award for ex-ceeding Customer expectations.
• Used Remedy Tool in Production environment which strictly complied with Problem/Change Management policies of the organization.
• Developed shell scripts for automating routine day-to-day tasks, management reports, set up alerts for server resources utilization CPU, memory, disks, etc. . Also wrote scripts for auto install and sun cluster. Wrote Shell scripts for monitoring Unix servers.

Environment: Sun Midrange Servers E6800/6500/4500/450 , Red Hat Linux 8.0 /Quantum tape libraries, Sun

Solaris 9 / 8, Sun Cluster 3.1, Veritas Cluster 3.5, VeritasNetbackup 4.5 / 5.1..