Professional Summary

• More than 7 years of IT Experience Administering UNIX, Linux and Windows Operating Systems.
• Worked on various flavors such as RHEL, Cent OS, Ubuntu, SUSE, Fedora, AIX and have expertise on installation, configuration and maintenance of those servers.
• Expert in Administering, Installation set up, Patch Management, Backup restore and support RHEL and Sun Solaris using Kickstart and Jumpstart.
• Experience of working with DBA teams for OracleInstallations.
• Installation and Configuration of Veritas NetBackup, Veritas Volume Manager Veritas File System and Veritas Clustering with SAN-NAS environments.
• Expert in creating and maintaining users account, profiles, security rights, disk space and process monitoring.
• Installing and upgrading packages on RHEL 4.5, 5.1, 6.2 and 6.5 servers using RPM and YUM
• Expert inNetworking and configuration ofNIS, NIS , DNS, DHCP, NFS, LDAP, SAMBA, postfix, sendmail, ftp, remote access, security management with Security trouble shooting ideas.
• Experience in Installation and configuration of web servers like SSH, FTP, Apache, Tomcat, Jboss, Websphere on Linux boxes.
• Experience in automation using tools like Puppet and chef.
• Performance Management Tuning of UNIX system.
• Have extensive experience on monitoring the system using tools like Nagios.
• Experience with Virtualization products like VMware ESXi 5.5 and XenApp 6.5.
• Creating Remote Virtual Machines experience for Linux using VMware Virtual Center and AIX LPARs on P550 and P570.
• Shell Scripting experience for smoothening task management using Ksh and bash.
• Good Knowledge in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux Operating System.
• Excellent experience and knowledge on LAN, WAN, Switches, Routers, Firewalls.
• Team Player Worked and willing to work on 24X7 support on rotation basis.

Technical Skills

Work History:

Confidential

Designation: Systems Administrator

Responsibilities

• Built first line Linux servers as a team with architect engineer.
• Helped with Installation, Maintenance, Configuration RHEL 6.5 /SLES Operating System with required Patching and conducted necessary deployment activities.
• Installing and upgrading packages on RHEL 6.5 servers using RPM and YUM, Patching Kernel, HBA drive, Configuring SAN disk and LVM and multipathing various File System.
• Successfully installed and configured Red Hat Enterprise Linux 6.5 using Kickstart over the network.
• Sharing, Mounting and Unmountingvarious files over time and configured NFS server
• Worked with VMware Virtual Center and VMware ESX Server and created the virtual machines, VLAN, Vswitches, and built binaries for HP Servers in a team.
• Configured LVMs and extensively used on RHEL 6.5 as well as created and clustered PVs, VGs, LVs and extended file system on standalone servers.
• Configured IP address, Virtual IP address, NIC bonding, storage Multipathing, and Static routing based on VLAN.
• Performance Management Tuning of UNIX system.
• Supported for the arrangement and relocation of onsite and remote servers with logical relocation OS migrations v2v or p2v or physical hardware relocation lift shift or p2p .
• Worked on setting up ASM disks, and Udev rules to resolves the permission issues and aslo the installation and Configuration of Oracle RAC as a team with DBAs and Client.
• Creating and monitoring User Accounts, Group Administration, maintaining and overcoming the various issues for the failure of new File System.
• Applying appropriate permissions for files and folders and setting up Quotas for the user accounts.
• Worked with SAN and DBA teams for the management of data between different databases.
• Worked on Global File System GFS for creating and managing cluster on Linux Servers.
• Experience in Administering, Configuring and Troubleshooting VERITAS Volume Manager, File Systems and VERITAS Cluster Server.
• Application of SUDO, SSH and various other security tools and compliance
• Configuration of RAID 1 and managing system using remote console for IBM HMC and HP ILO hardware.
• Network trouble shooting using ping, netstat, ifconfig, ethtool, nslookup etc.
• Maintaining network connectivity of servers as well as Configuration of IP, routing, checkpoint firewall and network interface.
• Documenting the configurations, changes made on any part of system and network.
• Installation of all the required Software, patches, documentation, licensing trouble shooting.
• Worked 24x7 on rotation basis.

Environment:RHEL and RHCS 5.1, 6.2 6.5, SLES 10, 11, VERITAS Volume Manager 5.1, 6.0, Windows 2008/2010/2012 server, AIX 5.3, 6.1, Oracle 11, 12c, bash Shell programming, SAN Switches, VMware ESX/ESXi 4.x/5.x, IBM systems x3650 and M4.

Confidential

Designation: Linux Systems Administrator

Responsibilities:

• Installing and maintaining RedHat Enterprise Linux 4.1, 5.1, 6.2 and Cent OS 5.
• Installation and configuring RedHat Linux Servers using Kickstart based network installation and upgrading Servers using RedHat Satellite Server.
• creating and maintaining user accounts, profiles, security rights, disk space and process monitoring
• Responsible for maintaining Red Hat and Cent OS software upgrades and configuration
• Providing remote access to the servers using the tools like SSH, Telnet and Rlogin.
• Maintaining upgrades with hardware, Operating System and periodic patch management.
• Installing and upgrading packages and disk management.
• Responsible for Linux kernel tuning, performance maintenance, and troubleshooting activities.
• Managing UID and GID assignment policies in a domain server and Configuring Sendmail.
• Making profile for new Servers and deploying them using Puppet.
• Organizinghardware, Operating System in order to build the Virtual machine with the help of XenApp.
• Writing scripts to automate the process and monitor system resources.
• Experience in using network protocols like NIS, NFS, SSH, DHCP, SFTP DNS.
• Installing and configuring Apache and Tomcat web server in Red Hat Linux.
• Deploying WAR, JAR files on Linux and also Building and Installing Weblogic Application on Servers.
• Worked with project manager and auditing teams to implement PCI, SOX compliance.
• Taking care on managing and monitoring different services with the help of service management facilities and service administrations.
• Experience in Designing firewall rules for new servers and implementing backup and restore strategies using Veritas Net Backup 6.5 for Linux servers, Solaris servers.
• Setting up Storage, RAID, Disks using Veritas Volume Manager Solaris Volume Manager and coordinated with SAN team for the allocation of Disk Dynamic Multi Path.
• Worked to overcome the major problems of production and documentations as well as solving tickets issued on day to day activities and problems related to development and test servers and put on Production.

Environment: Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential

Designation: UNIX/LINUX Systems Administrator

Responsibilities:

• Installed, Configured and Managed the Operating Systems like RHEL, AIX, and SUSE.
• Applied Kickstart and Jumpstart for Linux and Solaris Operating System respectively.
• Installation, Testing, Tuning, Upgrading RHEL and Sun Solaris as well as fixing the issues of various servers.
• Migrating Servers between ESX hosts as well as Creating and Cloning Linux Virtual Machine using VMware Virtual client 3.5.
• Installing and upgrading patches and packages on RHEL servers using RPM, YUM and third party software applications.
• Experience of working at data center for Mounting rack and Cabling.
• Creating and monitoring User Accounts, Group Administration and maintaining File Systems.
• Managing RedHat using Xen and KVM hypervisors.
• Installing and configuring Apache in Red Hat Linux.
• Troubleshooting network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Installed, Managed and Deployed application server Websphere, JBoss on Sun Solaris and Linux.
• Used the Stat commands like VM stat, NFS stat, MP stat IO stat to monitor server and application performance and tuned Input and Output memory.
• Used Ufsdump, Ufsrestore and tar command to Backup and Restore UNIX.
• Experience in solving tickets issuing issues for user on day to day activities and problems related to critical hardware and software.

Environment: Red-Hat Linux Enterprise servers HP Proliant DL 585, BL 465/485, ML Series, SAN Netapp , WebLogic, Solaris 8,9,10, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6, HP SIM, Nimsoft, VMware Virtual Client 3.5, AIX 5.2, 5.3, VMware Insfrastructure 3.5.

Confidential

Designation: Linux Systems Administrator

Responsibilities:

• Installing and maintaining RHEL 4.1, 5.1 and SUSE.
• Installation, maintenance with regular upgrades of RHEL Servers Configuring Kickstart using RedHat Satellite Server.
• Providing remote access to the servers using the tools like SSH, Telnet and Rlogin.
• Providing required upgrades for Operating System and Hardware
• Installation, configuration and administration of VMware, Solaris Zones, and Logical Domains.
• Scheduling, Monitoring and Reporting day to day job via corntab and autosys.
• In SUSE, Package Installation, Upgrade and Volume management using YaST
• Configuring and controlling system and tuning Parameters to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in account, installing and configuring sendmail.
• Preparing Shell BASH/Korn and PERL Scripts for Red Hat Enterprise Linux.
• Expertise in Installing, Configuring and Cloning VMware Virtualization using Vsphere and Hypervisor and adding data store, creating vswitches, templates, migrating VMs across ESX hosts.
• Installing, configuring various software applications and packages like Apache, Tomcat, Weblogic and deploying EAR, WAR files.
• Monitoring and install or updates patch software's, firmware, and security patches for all applications in installed infrastructure.
• Administration and configuration in Veritas Volume Manager/ Veritas File System.
• File system administration, create and configure file systems LVM, RAID troubleshoot, repair file systems, Disk management and Storage.
• Fine tuning of Servers and configuring network environment using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring
• Applying appropriate permissions for files and folders and setting up Quotas for the user accounts.
• As a team Organized various meetings to satisfy the requirements of company and clients.

Environment:RedHat 4.1 5.1, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming, SUSE Linux.

Confidential

Designation: UNIX Administrator

Responsibilities:

• Installing and Configuring Linux and UNIX Operating System
• Configuring Solaris and Linux Servers using Jumpstart and Kickstart and Incident management.
• Maximizing uptime and Performance capacity for Enterprise Production like QA and UAT.
• Performance Analysis of resources like CPU, Memory, Disk and Swap.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery.
• Installing, configuring various software applications and packages like Apache, Nagios, Tomcat, Weblogic, Websphere and BMC tool.
• -Configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Managing Veritas Volume Manager for Disks Usages and File System on Sun Solaris environment.
• Installed, maintained, upgraded and supported Apache and JBoss application servers on Red-Hat Linux systems.
• Expertise in Linux and Sun Solaris backup and performance using Veritas Netbackup and restore with TAR including formatting and partitioning disk.
• Monitoring, Clustering Sun Solaris using VCS in SAN environment.
• Updating patches in the Linux and Solaris.
• Involved in development, user acceptance, and performance testing, production disaster recovery server.
• Involved in migration of projects from one flavor to another one.
• Worked with different teams to make the system up to date and standard.
• Environment: Red Hat Linux 4/5, BMC Tools, NAGIOS, VeritasNetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory , BEA Web logic servers, SAN Switches, Apache, Tomcat WebSphere, AIX 5.2, 5.3, Jboss 4.0, Weblogic application server.