SUMMARY

• Over 8 years of experience in UNIX/LINUX System Administration Installation, configuration, tuning, upgrade of operating system and application.
• Responsible for the administration, configuring and problem analyses for RedHat 6.x servers
• Maintaining and Monitoring user access and accounts
• Implementing and scheduling weekly and monthly backups using native Linux tools
• Monitoring Linux file systems on daily basis
• Configure networking in Linux servers
• Implementing, Installing and configuring Linux in VM environments like VMWare
• Monitor Linux processes on daily basis and manage run away processes along wif processes which cause performance degradation
• Maintain and administer end - to-end Linux environment which includes multi-node clusters
• Assisted in migrating Linux environments from small to large environments
• Ability to create custom shell scripts using VI and scheduling jobs thru cron
• Implemented custom shell scripts for monitoring and sending notifications when an issues occurs
• Provide recommendations for new Linux server deployments in a datacenter environment
• Over 5 + years of professional experience on Microsoft Windows Systems, VMware Administration, SAN and NAS Storage, and IT Support.
• Expertise in Systems Administration of Microsoft Windows Servers 2000/2003/2008 and accomplished in the usage of all tools in the TCP/IP Protocol suite used wif DNS, DHCP, WINS, FTP, Telnet, NAT.
• Expertise in Installation, Configuration & Troubleshooting VMware ESX 3.5/4.0/4.1/5.0 , VSphere 4.0/5.0, Virtual Center 2.5 Servers V Block. Creation of VM’s on ESX Servers and installation of hosts and guest OS Windows. Network configuration on ESX servers which include NIC teaming, Bonding for Failover and Load Balancing purposes. Migrating Virtual Machines across various VMware products like ESX, GSX servers Workstation and VMware servers.
• Building, Configuring, and Supporting of New Datacenters, Designing and Implementing Clustering wif HA & DRS, & Resource Pools for high availability.
• Experience wif VMware lab manager for Installing and Maintaining Operating Systems, adding and updating applications and resolving problems.
• Extensive experience in Server builds ensured to follow the audit standards of the company and followed the Information Security Management System for maintaining security standards in the environment.
• Performed administration and trouble shooting for server provisioning through cloud computing tools like VMware vcloud director.
• Experience in Windows 2000/2003/2008 Active Directory Installation, Managing, Administering and Troubleshooting. Design and deployment of enterprise-wide Group Policies using Active Directory components, Creation of users, groups and assigning necessary hardware and software.
• Experience in updating Servers wif latest Service Packs, Security Patches, Antivirus definitions and software distribution using Microsoft Systems Management server (SMS), Systems Center Configuration Manager (SCCM) and Windows Server update services (WSUS).
• Experience in Installing, Configuring and Administering of Antivirus servers (McAfee, Symantec, and Trend Micro) and clients. Analyzing and executing the reports and taking the corrective measures using ePO management console.
• Experience in upgrading the AD environment from and .
• Experienced in design and setup of corporate Internet and Intranet web sites using Microsoft Internet Information Server (IIS) and sub-components.
• Experience in managing web application servers, intranet website and website security management.
• Experience in Creating Backup policies and scheduling backup Jobs using VERITAS Backup, NT Backup, Arc Serve Backup and Net Backup Exec and Auto loader tape drive.
• Installation, Configuration and Troubleshooting of hardware including Servers and Workstations.
• Installation and configuration of servers, workstations, disk drives, NIC, memory, HBA.
• 5 + Years of Puppet automation tool.
• Expertise in configuring RAID technologies.
• Used tools HP SIM, Solar Winds for monitoring and troubleshooting server hardware.
• Expertise in Password Recovery of Telnet, Console, Auxiliary, Enable Secret Passwords.
• The ability to lift 50 lbs and install computer and electronic equipment in a safe and careful manner.
• Strong communication and people skills, both written and verbal. Able to assess and resolve client issues quickly. A proven record of reliability, the ability to perform under time constraints, and good judgment under pressure.
• Ability to maintain a reliable and methodical approach to support and Documentation. Quick learner, highly motivated team player wif excellent organizational and analytical skills

TECHNICAL SKILLS

Operating Systems: Linux (RHEL 3.x/4.x/5.x/6.x, Red Hat 8/9/, SUSE 10 &Debian), IBM AIX 4.3.3/5.1/5.2/5.3/6.1/7.1 , Sun Solaris 8,9,10, HP UX. Windows Server 2008 R2, Windows Server 2000/2003 SP1/ 2008, Windows XP/Vista/7

Virtualization: VMware Vsphere 3.5/4.1/5.0, Workstation 6/7, ESX Server 3.5, ESXi 4.X, VMware DRS, HA and FT, V Block, VMware Standalone Converter 3.0, VMware Update Manager1, VMware Virtual Desktop Infrastructure VDI, VMware View

Storage: VERITAS Volume manager 3.5 and 4.x, Logical Volume Manager, Tivoli (TSM), VERITAS NetBackup4.5, EMC Power Path, EMC SymmetrixVraid, Vmax, Hitachi, IBM arrays, Storage-TEK L700, Dell Power Vault.

Web Servers: Apache1.3.x, 1.2, 2.x, JBoss4.0.x, Web Logic, Web Sphere, Java Web Server, Tomcat, IIS 5.0/ 4.0, SAMBA v3.0, Send mail.

Network Services: SMTP, SNMP, DHCP, POP, SMB, NIS, NIS+, NFS, DNS, FTP/TFTP, ARP/RARP, SSH, TCP/IP, WEBSM, NTP, TELNET.

Servers: IBM RS/6000, and P-series servers ranging from F50,H80,F85,P610,P615,P630,P510,P670,P690,P550, P570, P590,P595,P770. HP DL 320, HP DL 330, HP DL 380s, HP DL 580’S, Dell Power Edge Servers, dell 2300, 2400, 2450,2850,2950,6300.

Scripting: Bash, korn, KSH, CSH, Perl Scripting, Shell Scripting on Red Hat Linux

PROFESSIONAL EXPERIENCE

Confidential, Houston, TX

Linux Administrator

Responsibilities:

• Installed LINUX operating systems, apply patches, manage file systems and monitor performance on VM, and DELL server
• Installed and Configured DNS, DHCP, FTP, TFTP, NIS, and NFS in Redhat Linux
• Build kickstart server and Implement automation of server provisioning via PXE boot and Kickstart
• Configured and administrate TCP/IP networking, routing, switching load balancing and VLAN
• Help Build and manage Opera private and public cloud environments.
• Assist in information gathering and architecting solutions to fulfill various functional and performance requirements, including storage, networking, and other pieces of infrastructure
• Manage HPCC cluster at enterprises scale
• Managed and monitor system configurations wif OCS inventory, Ganglia, Munin
• Responsible for AD integration for Red-hat and Centos servers
• Production support of Apache, Puppet and tomcat including installation, configuration, management, and troubleshooting
• Responsible for proxy setup between Apache Server and Application Servers Bonita, and Tomcat
• Responsible for operational support and incident management of Linux server
• Responsible for Investigating and troubleshoot issues by determining root cause and remediate application, system, infrastructure issues and take proactive measures to prevent future occurrences
• Worked wif teammates, clients and other teams to identify and address systems problems
• Analyzed all aspects of the existing infrastructure and recommends modifications dat will enhance system reliability, availability, serviceability and scalability on Linux
• Performed and Kernel Patching using both Command line and GUI.
• Performed Kernel Upgrades Kernel Tuning to make Linux environment less vulnerable to internal security fixes.

Environment: Windows 2000/2003/2008 R2, Windows XP/Vista/Win 7, VMware ESXi 4.0 Server, VMware View, VMware Lab Manager. Open filer iSCSI SAN/NAS, Remote desktop services, NetApp FAS3050, FAS3160, FAS270

Confidential, Scottsdale, Arizona

Linux Administrator

Responsibilities:

• Installation, configuration & administration of Red Hat Linux 8/ 9, Red Hat Enterprise Linux 4x, 5x,6x, and AIX 5.1/5.2 servers.
• Installation, upgrades, and configuration of SLES 9/10 OS on IBM System X servers and Dell PowerEdge servers.
• Installed and configured Veritas Volume Manager 4.0, Veritas File System 3.5, Veritas Cluster Server 3.5 and VeritasNetbackup Enterprise 5.0 on E450, E12K servers.
• Setup, Configured and Maintained nearly automated installation methods for both SLES and Red Hat (AutoYast and Kickstart) to standardize the Linux install image/configuration
• Created RAID Groups and Storage Groups by using Navisphere Manager.
• Created LUN’s using Navisphere Manager.
• Kernel tuning on AIX systems for Oracle 9i and 10g installations.
• Performed OS and kernel upgrades on AIX and Linux servers.
• Building Servers using NIM from mksysb or SPOT in AIX.
• Implemented Virtualization using VMware in Linux on HP-DL585.V Block
• Performed Logical Volume Manager (LVM), SSA Disk and RAID Management.
• Performed daily backups, restoration of data as per requests from developers using VeritasNetbackup.
• Worked on EMC disk storage to allocate disk space.
• Monitored servers, switches, ports etc wif Ganglia monitoring tool.
• Installed/Configured Websphere and other Application Servers.
• Implemented Single Sign On using Open LDAP in enterprise environment
• Automation for Puppet tool.
• Managed Linux and AIX user accounts, groups, directories and file permissions.
• Configuration and administration of LDAP, NFS, NIS, NIS+, DNS and sendmail in Red Hat Linux, IBM AIX, HPUX and Solaris.
• Modification of Shell Scripts as per the Customer requirements.
• Installed software using Insta llp applying PTF s, Micro codes, updating PMRs, downloading Filesets, ODM, LVM and Disk Management.
• Configuration and administration of HACMP 4.3.1/4.4 using 2/3 node cluster using Cascading, Rotating, Concurrent resource group, PSSP 3.2 Migration.
• Ensured the Systems and Data online, offline, archived Backups on Daily and weekly basis using Maestro and Crontab.
• Capacity planning of disk space and hardware resources required for production and development servers

Confidential, Westborough, MA

Senior Virtulazation Specialist

Responsibilities:

• Installation and configuration of ESX server.
• Server migration physical to Virtual using Hot and cold cloning technology in Vmware
• Upgrade implementation from ESX 3.5 to VSphere 4.1
• Storage leveling, Array migration.
• Independent disk modification.
• VDI Capacity planing and management.
• Configured High Availability (HA), DRS.
• Creation of template
• Consolidation of Physical servers
• Deployed virtual servers using template
• Cloned of virtual server
• Implementation Vcenter in Standerd and VC Linked Mode.
• Planning and Consolidation of VCenters.
• Configuration of Vmotion, virtual switch,Vlan in Virtual center.
• Maintenance of virtual center server.
• Provided and maintaining user access in VC, configuring mail alert for any failure in HA,DRS,CPU or memeory.
• DNS search order configuration in esx serverPatch management using Vmware update manager for esx server.
• SAN space allocation for esx servers host .Scanning and configuring LUN for ESX server.
• Trouble shooting issues related to ESX host,Vc,HA,DRS,Vmware update manager
• Updated documentation of complete process.
• Monitored Vmware backup
• Disk Space increase using Vmware converter.
• Import of virtual server using Vmware converter.
• Planning,strategising, and implementation to upgrade ESX server 3.5 to 4.0 5.x Tested and Implemented disaster recovery
• Participated in weekly meetings
• Prepared detail documentation for the whole physical and virtualized the environment

Environment: Windows 2000/2003/2008 R2, Windows XP/Vista/Win 7, VMware ESX 4.0 Server, Open filer iSCSI SAN/NAS, HP Proliant Blade Servers BL280C G6, BL460C and 620C Series, Dell & IBM Servers Remote desktop services

Confidential, NJ

System Admin

Responsibilities:

• Installed LINUX operating systems, apply patches, manage file systems and monitor performance on VM, HP Blade Server, V Block and DELL server
• Installed and Configured DNS, DHCP, FTP, TFTP, NIS, and NFS in Redhat Linux
• Build kickstart server and Implement automation of server provisioning via PXE boot and Kickstart
• Configured and administrate TCP/IP networking, routing, switching load balancing and VLAN
• Help Build and manage Opera private and public cloud environments.
• Assist in information gathering and architecting solutions to fulfill various functional and performance requirements, including storage, networking, and other pieces of infrastructure
• Manage HPCC cluster at enterprises scale
• Managed and monitor system configurations wif OCS inventory, Ganglia, Munin
• Responsible for AD integration for Red-hat and Centos servers
• Production support of Apache, puppet and tomcat including installation, configuration, management, and troubleshooting
• Responsible for proxy setup between Apache Server and Application Servers Qlikview, Bonita, and Tomcat
• Responsible for operational support and incident management of Linux server
• Responsible for Investigating and troubleshoot issues by determining root cause and remediate application, system, infrastructure issues and take proactive measures to prevent future occurrences
• Worked wif teammates, clients and other teams to identify and address systems problems
• Analyzed all aspects of the existing infrastructure and recommends modifications dat will enhance system reliability, availability, serviceability and scalability on Linux
• Performed Kernel Upgrades and Kernel Patching using both Command line and GUI.
• Performed Kernel Tuning to make Linux environment less vulnerable to internal security fixes.

Environment: Red-hat Linux 5.x, 6.x, CentOS 5.x, 6.x, Ubuntu, SUSE, VMWARE, HP Blade servers, Dell PowerEdgeServers, IBM Blade Center Servers(HS20, HS21), WINTEL, V Block Kickstart, Apache, TomCat, Qlikview, DNS, DHCP, NFS, NIS,SAN, EMC, Ldap, Active Directory, MySql, PHP, Samba, Ganglia

Confidential, Framingham, Massachusetts

System Administrator

Responsibilities:

• Involved in installation and configuration operating system Red hat Enterprise Linux (RHEL5.3 and RHEL 5.4) in development and test environments almost six levels on HP physical servers and Virtual Machines
• Worked wif VMware ESXi 4.0, 5.0
• Designed, managed, implemented/ supported: Backup/Recovery/Archive, Security Startup/Shutdown, Mass Storage (SAN/NAS), OS Installations/Patches, Hardware/Software installation, Batch scheduling, Data center Migration, Application and Server performance
• Worked in adding new Users and groups and give sudo access in test and development servers and central file synchronization via sudoers, authorized keys, password, shadow, group
• Worked wif DBA team in installing and configuring Oracle 10 g and 1 lg, Sybase, Db2 client v 8.1 and v9.0
• Coordinated wif application team in installation, configuration and troubleshoot issues wif Apache, Web logic on Linux servers
• Used VERITAS Volume manager to create disk groups, volumes, volume groups, and RAID's
• Involved in back up, firewall rules, LVM configuration, monitoring servers and on call support
• Involved in shell scripting for system/application in automating server task, installing and monitoring applications and data feeding file transfer and log files
• Involved in installing and configuring operating system Red hat Enterprise Linux in Production, QA and test environments on standalone IBM servers and IBM Blade Center Hardware
• Configured Kick start for RHEL 5 to perform image installation through network
• Worked wif Red hat Linux tools like RPM to install packages and patches for Red hat Linux Server and managed virtualized OS
• Worked on network connectivity, SAN storage, creating LVM and taking TSM backup
• Creating and managing user accounts and groups and their permissions and creating files and directories permission
• Co-ordinate wif Middle ware team in installation, configuration and troubleshoot issues wif
• WebSphere Application Server and Apache/Tomcat /Puppet server on Linux
• Installed/Configured/Maintained/Administrated the network servers DNS, NFS and application servers Apache and Samba server
• Extensively worked wif the LAN/WAN, firewalls and routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP, HTTP/s, FTP, SMTP & SSH
• Involved in DMZ firewall rules, configure iptables and iptablesinitscript, start and stop init script for Apache and other application server.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Modifying user’s password policies, group policy, UID and GID assignment policies.
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat and cpuinfo to check the CPU utilization, bottlenecks of I/O devices, memory usage and network traffic
• To troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. To loginto the remote system using sudo, putty and telnet. To transfer files across the systems on the network used ftp and scp commands.
• Linux technical support and prepared technical documentation for check in verification.
• Regular backing up of critical data and restoring backed up data Worked in solving tickets issued on day to day activities and problems related to development and test servers

Environment: Red Hat Linux (RHEL 5), Oracle 10G, TCP/IP, DNS, DHCP, NFS, SAMBA, Apache, POSTFIX, POP3, SMTP, MySql, Oracle

Confidential, Wilson, North Carolina

System Administrator

Responsibilities:

• Software and Hardware upgrades of Solaris/Linux systems
• Installed and Configured sftpd, Telnet, Dhcp, Httpd, Ftp, ssh, iptables, squid Samba for the Servers.
• Configured kickstart files, installed RPMs & Packages and Installing Patches.
• Installed and administered Debian GNU/Linux systems providing IS infrastructure (mail, web, FTP streaming media).
• Managed, and performed the upgrade of Symantec/VERITAS Netback up infrastructure from version 4.5x to 6.x in mixed UNIX/LINUX/Solaris environment.
• Designed and implemented an automated system installation and configuration system, based on
• Solaris Jumpstart and GNU.
• Responsible for corporate level auditing compliances like system security, network security and installation of recommended patches.
• Experience in debugging scripts and written shell scripts to reflect the changes to many UNIX systems.
• Routing related tasks included providing Cisco routers and switches configuration and change management, providing technical support for Cisco Router configurations and installation for customer.
• Excellent experience and noledge wif designing, installing and implementing VMware ESX server, VMware virtual center, virtualization tools.
• Involved in hardware installation and maintenance of workstations, servers, and other supporting hardware.
• Involved in managing the company's hardware and all set-up issues.

Environment: Red Hat Enterprise Linux, Fedora core, Solaris, Windows 2003 server, Apache, Squid, BIND, Web logic, Sendmail, MS Windows 98/XP.

Confidential, Chicago, IL

Storage Administrator

Responsibilities:

• Design, recommend, develop, evaluate and implement technical systems infrastructure solutions to support development and deployment of advanced IP video technologies and services.
• Provide systems level management and technical oversight for all systems supporting labs.
• Lead configuration management of infrastructure domains.
• Manage large-scale fault tolerant and distributed virtual machine farms supporting various advanced IP video engineering teams.
• Engineer deployment and support management solutions and VMWare systems in lab and production environments.
• Development of tools and processes for managing Linux and VMware based servers.
• Development and execution of load, capacity, longevity and stress testing of systems.
• Perform capacity management functions for various lab environments.
• Testing and certification of code and systems releases from core systems infrastructure vendors.
• Experience wif a variety of unix/linux scripting languages including python, perl, bash
• Experienced wif DNS, DHCP, PXE and Apache/HTTP
• Experience wif blade server architectures
• Working noledge of VMWare 5
• Experienced wif NAS/NFS storage technologies
• Working noledge of networking concepts (VLAN, TCP/IP, Multicast, Unicast, OSI)
• Understanding on how to scale systems depending on load
• Proficiency wif working noledge of data center operations
• Good communicator and able to clearly articulate complex issues and technologies
• Ability to propose systems design improvements
• High attention to detail and strong ability to problem solve systems issues
• Willing to take ownership of problems and see them through to resolution
• Comfortable working in a fast paced agile environment.