SUMMARY:

• Over 7 years of professional experience in Linux/Unix Administration
• Experience in Installation, Configuration, Upgradation, Support & Maintenance of Red Hat Enterprise Linux and Sun Solaris servers
• Experience in implementing Virtualization using VMware ESX
• Experience in building Servers using Kickstart for Linux, Jumpstart for Solaris
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies in RedHat
• Extensive administration experience in Storage Area Network (SAN) and Network Attached Storage (NAS)
• Good experience in setting up RAID0, RAID0+1 and RAID5 for data redundancy
• Experience in VERITAS NetBackup with proficiency in System Backup and Recovery from tapes
• Experience and implementation of services like NFS,NIS, NIS+, DNS, DHCP, LDAP, Mail servers and Samba servers
• Responsible for creating, configuring and maintaining Zones and installing applications on individual zones (Global & Local zones)
• Experience in implementing and configuring of Logical Volume Manager (LVM), Solaris Volume Manager (SVM), VERITAS Volume Manager (VxVM)
• Responsible for setting up Disaster Recovery environment for Linux servers and implemented all teh DR procedures as per teh guidelines
• Experience in Performance Monitoring of Kernel parameters, Memory, Disks, Network
• Knowledge in configuring disks in EMC & Hitachi SAN environment including checking SAN visibility &multipathing
• Expertise in setting up SSH, SCP, SFTP connectivity between Unix hosts
• Expertise in configuring Bonding in Linux and IPMP in Solaris
• Creating and maintaining user accounts, permissions, disk space and process monitoring
• Proficient in installation and configuration of Web Sphere Applications on Linux
• Good exposure to Datacenter environment

TECHNICAL SKILLS:

OPERATING SYSTEMS: Enterprise Linux, Sun Solaris, CentOS, Fedora, SLES, Ubuntu, Windows

HARDWARE: ProLiantDL160/DL185/DL585/DL580/DL360/BL460, Dell, 2400, 2450, 2850, 2950, SunFire V210/V240/V440/V480/V880, Sun Netra Sun Enterprise E6900/15k, Power edge 2850/1850, HP/9000K, IBMRS/6000, rp3440, rp5470, rx3660, rx6600, HP C7000 and C 6000.

LANGUAGES: C, C++, HTML, KSH, CSH, Bash

NETWORKING: TCP/IP, NFS, Telnet, FTP, DNS, DHCP, NAT, ifconfig, route, Netstat, HTTP

WEB SERVERS: Apache, Tomcat, Jboss, Weblogic & Web Sphere

SECURITY: SUDO, SSH, SSL

APPLICATION SERVERS: Web Sphere Apache, JBoss, Tomcat, Web Logic, Weblogic, PL/SQL

TOOLS: VERITAS Volume Manager, VERITAS Cluster Server (VCS), VERITAS NetBackup Solstice Disk Suite, VMware ESXi, Virtual ticket, Virtual Request, Infoman, ServiceNow, ResolveIT, Putty, Reflection, QIP, vRealize Operations Manager ICM 6.0

PROFESSIONAL EXPERIENCE:

Confidential, CHARLOTTE, NC

LINUX ADMINISTRATOR

RESPONSIBILITIES:

• Worked on projects based of Client requirements which involved Unica, ETL, Web, Oracle DB standalone & Oracle RAC cluster installations on RHEL
• Involved in day - to-day project meetings with PMO's and Client teams to ensure project deadlines were met
• Configured kickstart server and updating/applying kernel patches to servers using RedHat Satellite server
• Worked closely with Datacenter facilities team to rack & stack new hardware
• Responsible for Linux server builds from scratch and maintaining them until they go-live
• Installed RHEL on VMware guests
• Monitoring disk, CPU, memory and increasing them as and when required on VMware guests
• Installed and configured VAS/QAS authentication services on RedHat servers
• Worked with Client teams in setting up user accesses and permission sudorights to users for performing certain activates
• vCAC Advanced Configuration (vRealize)
• Assess teh vCO main workflow to see teh order of execution of teh workflow
• Worked closely with Windows admins to register users in Active Directory
• Worked closely with network team to open firewall requests to setup communication between database, ETL & Web servers
• Trunked VLAN's for Blades and VMware guests
• Changed configuration channels in RedHat Satellite for applying latest kernel patches to servers
• Built Oracle RAC clusters on RedHat servers, configured private interconnects, maintaining true redundancy between public & private NIC's
• Worked with network team to configure private VLAN's for Oracle RAC servers
• Configured Oracle ASM disks for database servers
• Tuning kernel parameters for Oracle database servers for optimum performance
• Installed Fusion IO cards on HP servers and configured them
• Worked closely with Storage team to allocate SAN intimae to ensure server builds are completed
• Used native multipathing tools to configure storage on Linux
• Worked in Datacenter to install memory and fiber cards on servers
• Configured ILO's for HP servers using hponcfg utility
• Installed VERITAS NetBackup& configured backups
• Configured bonding on Linux servers to have true redundancy
• Made sure all paper work is up to date for Operational turnover of servers once teh go-live is completed

ENVIRONMENT: RHEL 5/6, RedHat Satellite Server, VMware ESXi, HP Proliant DL380/DL580/BL 460c, Oracle RAC, VERITAS NetBackup, Apache, Solar winds, VAS/QAS

Confidential, CA

UNIX/LINUX ADMINISTRATOR

RESPONSIBILITIES:

• Active administration of thousands of production, contingency, uat and development servers comprising RedHat Linux & Sun Solaris servers
• Participated in root-cause analysis of recurring issues
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring
• Configuring sudo and granting root permission to users for performing certain activities
• Provide login & SCSU access for users into teh servers by creating and upgrading teh appropriate net group tables in NIS+ in all domains
• Troubleshoot & Resolve user login issues and SCSU access
• Coordinating with different support teams in resolving teh critical file system and process related issues
• Basic shell scripting for automation of system administration tasks
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Installed and configured Tivoli monitoring on all servers
• Responding to Tivoli &Alarm Point alerts in timely manner
• Experience in Performance Monitoring of CPU, Memory, Disks, and Network using various
• monitoring tools like SAR and top
• Adding of Swap Space as and when required
• Worked closely with Datacenter teams to rack & stack teh new hardware
• Configuring IP's for new servers using QIP tool
• Coordinating with team members to push teh newly builds into QA so that application users can perform testing
• Install, configure and manage RedHat and Solaris servers
• Installation of RedHat servers using custom Jumpstart with LVM as volume manager
• Installed SCSI Storage media and created volumes with high availability using different RAID technologies like RAID 0, RAID 0+1 and RAID 5
• Created VM's and deployed RedHat on VMware based VM's
• Configured bonding on RedHat servers & IPMP on Solaris servers
• Performing Kernel &Sans tack upgrades for RedHat& Solaris servers
• Ensured automatic startup of different services using chkconfig
• Creation and scheduling of Cron Jobs, System Monitoring and removal of unnecessary files
• Space allocation to teh met devices, detaching and clearing teh devices if not in use
• Created local zones on Solaris 10, changing teh specs as per teh application requirement
• Patched Solaris global zones running on M5k hardware, where local zones are clustered
• Involved in ongoing Solaris to RedHat migration
• Generated SSH keys for functional users and configured SFTP
• Installed rpm &dstream packages on RedHat& Solaris servers respectively.

ENVIRONMENT: VMware ESX, CentOS 4,5, SLES 9,10,11, Fedora 9,10,11(beta), Ubuntu 8.04, 8.10, 9.04 Server, VERITAS Cluster Server, VMware ESX, VERITAS File System, VERITAS Volume Manager, VERITAS Cluster Server, HP Proliant DL 360, Apache, Solar winds,, 2450, Nagios

Confidential, VA

LINUXADMINISTRATOR

RESPONSIBILITIES:

• Participate in Product Development Roadmaps, Setup Development server's for Rapid Application Prototyping
• Installed and configured VMware ESXi created VMs and deployed Linux on VMware based VMs
• Migration of Guest OS from GSX to ESX using VMware Converter
• Migration of physical servers to ESX using VMware Converter
• Worked on VMware ESX virtualization for testing and implementing servers
• Installed VMware ESX server farm with 25 physical nodes running with an average of 15 virtual Linux nodes per server
• Responsible for monitoring and maintaining physical and virtual servers and solving teh issues as when they arise
• Implemented Virtual Machine Cloning, Snapshots, Backup Policy
• Backing up of VMDK files using VMware snapshot feature
• Co-ordinate and Assist project delivery time lines
• Used Scripting for backup, recovery, Jumpstart automation and monitoring
• Provide 24/7 Product Support for Mission critical customer installations
• Production Readiness Validation Testing for VxGrid Product releases
• Implement Checkpoint Firewall, Firewall Policy, Access Roles
• Implement Software Security Firewall, VLANS using PFSense
• Configure data-center wide Routing, DHCP, DNS
• Install, configure and manage Linux Servers
• Installation of Linux Servers using kickstart and providing support for various applications running on Linux environment
• Install and configure RPM builds and hardware installation
• Setup Postfix/Dovecot SMTP server for multi-domain both in-house and for customer implementation
• Setup domain wide white list/blacklist spam filter using SPAM Assassin
• Configure Apache/NGINX webservers with Mod Proxy Loadbalancer, Mod SSL
• Installation and configuration of VERITAS Volume Manager
• Provided Support and administered VERITAS Volume Manager, VERITAS File System and VERITAS Cluster Server
• Install and configure PHP, Mysql and Custom PHP Applications like Joomla/OSTicket
• Administered disk groups, subdisks, plexes, and volumes using VERITAS volume manager
• Day to day administration of SAN and NAS infrastructure
• Configure Pound Load balancer setup load balancer policy for smtp/http and outbound proxies
• Setup Nagios for Monitoring, Operating system variables like CPU/Memory/Disk and SNMP

ENVIRONMENT: RHEL 3,4,5, CentOS 4,5, SLES 9,10,11, Fedora 9,10,11(beta), Ubuntu 8.04, 8.10, 9.04 Server, Debian SID, VMware ESX, VERITAS File System, VERITAS Volume Manager, VERITAS Cluster Server, HP Proliant DL 360, Dell Power Edge 2400, 2450, Nagios.

Confidential

SYSTEM ADMINISTRATOR

RESPONSIBILITIES:

• Install, configure, and maintain servers using enterprise standards and build process
• Provide problem management support for teh production site and services - troubleshoot technical problems as they arise
• Member of server management operational team
• Implemented VMware ESX server to provide multiple virtual hardware platforms
• Migrated obsolete hardware platforms to VMs via VMware Converter
• Install VMware Tools on all major OS and troubleshoot software device driver
• Install, configure and manage RedHat/Windows Servers
• Configured host-based and user-based security for teh service using tcp wrappers
• Configured Mail Sever using Send mail on RedHat server
• Providing administration and troubleshooting user related problems
• Work closely with DBAs, software partners and Staff in a proactive and solution oriented manner
• Deploy Tomcat/JBoss clustered application servers in development environment
• Setup/Configure Mysql database, user roles, sql dump scripts and drbd replication
• Working noledge on LDAP, Active Directory
• Installing and configuring of NFS
• Extensive noledge of debugging scripts/log file validations
• Assist code deployment automation with Shell Scripts
• Patch Management, Package Installation/Upgrades and Kernel upgrades
• Installation and Configuration of Web servers like Apache, Jakarta Tomcat
• Performed Server design engineering, configuration and troubleshooting of all components, hardware and software with 32 and 64 bit processors, Intel and AMD based
• Administering teh software packages and patches on servers as well as workstations
• Configure Nagios Monitoring and configure plugins to get snmp data from teh routers and server’s
• Used Webalizer to trend web server archive log retention logs
• Used utilities like VNC, Nessus, Etheiral and Port Monitors
• Performed teh administration of teh DNS and zone configuration

ENVIRONMENT: RHEL 3,4, CentOS 4, SLES 9,10, Windows 2003 Standard and Advanced Servers, VMware ESX, Nagios, LDAP, Tomcat, JBoss

Confidential

LINUX/UNIX ADMINISTRATOR

RESPONSIBILITIES:

• Administration of RHEL and AS 3, 4, 5 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5.
• System and Network Administration training, which include but is not limited to installing Linux, Solaris, UNIX internals, NFS/NIS management, and DNS Configuration
• Configuration of LVM on AIX 5.x and RHEL and extensively used LVM, created VGs, LVs and mirroring
• Installed, configured, and maintained WebLogic 11.x and Oracle 11g on Solaris &Redhat Linux.
• Creating, installing and configuring Zones, LDOMs in Sun Solaris 10using Jumpstart.
• Performs Integration, Deployment and maintenance support of system integration activities.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570
• Regular disk management like adding/replacing hard drives on existing Linux, AIX, Solaris servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over teh hard drives and managing file systems.
• Provides coordination with technical presentation to teh customer. Perform data backups and disaster recovery operations.
• Experience in installation of Splunk tool, proficient in Splunk search and building reports and alerts.
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
• Involves in maintenance support and troubleshooting of system deployed with customers.
• Adding SAN using multipath and creating physical volumes, volume groups, logical volumes.
• Gathering requirements from customers and business partners and design, implement and provide solutions in building teh environment.
• Installing and configuring Apache and supporting them on Linux production servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Updated teh System Firmware for IBM power5 and power4 machines.
• Used LPAR Validation Tool (LVT) to validate teh resources assigned to LPARs
• Setup of full networking services and protocols on AIX, RHEL including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP applications, to insure optimal networking, application functionality
• Installed and verified that all AIX/Linux patches or updates are applied to teh servers.
• Performed Installation and Configuration of NIM. Installed AIX on each node using NIM.
• Expertise in enterprise class storage including SCSI, RAID and Fiber-Channel technologies.
• Configuration of teh RAID 1 and RAID 5 Storage using Veritas File system and Volume Manager.
• Installed and Configured WebSphere Application servers on Linux and AIX
• Provide technical support to other teams, members and associates.

Environment: Sun Solaris 8, 9,10, Red Hat Linux 4.X, 5.X, Veritas Volume Manager 4.1, 5.0, Solaris Volume Manager, Splunk, SOAP UI, BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, AIX 5.3, 6.1, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 3.5