SUMMARY

• An IT professional with 7 years of experience in Installation, Configuration, Backup, Recovery, Maintenance, Support CentOS 5.x, 6.x, RHEL Linux 4.x.5,x 6.x, Windows 2003, 2008 R2, 2012, VMware 4.x, 5.x.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Involved in building channels and pushing the packages to master Red hat Satellite server.
• Experience in installation and management of network related services like DNS, Apache, LDAP, SAMBA, HTTPD, VSFTP and SMTP.
• Experience in Installing, configuring and maintaining Samba, Apache, Web Sphere & Web Logic Application Servers, Nagios.
• Expertise to handle tasks in Red Hat Linux includes upgrading RPMS using YUM, kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Well experienced in hands on Kickstart (PXE) and Jumpstart installation.
• Expertise to handle tasks in RedHat Linux including upgrading RPMS using YUM, kernel and LVM file system.
• Maintain and use Redhat Kickstart servers for installs and upgrades. Plan and implement service updates and Patch Administration.
• Creating and maintaining user accounts, profiles, security rights, disk space and process monitoring.
• Experience in installing, configuring & implementing the RAID technologies using various tools like Veritas volume Manager and Solaris volume manager.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Redhat Linux.
• Installation and upgradation of Packages and Patches configuration management.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
• Experience on Webservers, Tomcat & Apache Server and integrating them with Weblogic servers.
• Experience in administering Vsphere 4.0, 5.1, 5.5.
• Experience in writing shell scripts to automate the administrative tasks and management using cron.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Managing Sever Farm consisting of Rack optimizedLinuxClusters.
• Experience with installing/configuring blade enclosure and HP Virtual Connect, XEN, VMware ESX/ESXi 5.1/5.5 and vCenter.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Experience in Network Configuration and Troubleshooting and Partitioning of file systems.
• Working knowledge on TCP/IP, UDP protocols in solving network related issues on the servers.
• Proficient in creating users, groups and roles in LDAP.
• Experience in manipulating raw data into required formats using scripting tools like sed, awk, cut and various others.
• Day to day ticket resolving & submit CRQ based on user requirement.
• 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, NFS administration and Disaster Recovery/fail-over exercises.
• Proficient in Shell Scripting (Bash), Sed and Awk.
• Experience in Windows 2000/2003/2008/ R2 Servers at single or multi domain platforms.
• Experience in Active Directory, GPOs, DNS, DHCP, File & Print Server, FTP, Terminal Server, NAT, WSUS, Microsoft Clustering, Exchange Mail Server.
• Expertise in the design and architecture of Active Directory.
• Experience and Familiar with Virtualization technologies like installing, configuring, administering VMware
• ESX/ESXi.Created and managed VMs (virtual server) and also involved in the maintenance of the virtual server.
• Expertise in the area of Virtualization with vSphere, VMware ESX 5/4.1/4 and 3.x hosts and Virtual Center server.
• Implemented vSphere 5.0 for Proof of Concept &Supporting vCenter environment in large scale production environment.
• Expertise in design, implementation and supporting VMware vSphere ESXi 4.1/4.0/5.0 environment.
• Sound knowledge on ESX Architecture, guest OS installation, setting up of VM priorities, Cloning and Snapshots.
• Experience with large number of P2V and V2V migrations using VMware/Platespin and doubletake convertor tools.
• Build and troubleshooting experience With ESX hosts and Virtual Center Server.
• Sound knowledge on resource management framework like creation resource pools, adding the VMs into resourcepools.
• P2V and V2V conversions by using VMware Converter and Plate Spin.
• Extensive background in working with the VMware vMotion technology.
• Strong experience with the VMware HA and VMware DRS.
• Knowledge with NAS/SAN storage.
• Strong understanding of VMware Networking concepts like creation of vSwitches, different types ofportgroups, NIC Teaming and VLAN.
• Experienced in Windows Administration, Active directory, exchange server 2003/2007/2008/2012.
• Strong interpersonal and communication skills and the ability to work TEMPeffectively. 24x7 on call support.

TECHNICAL SKILLS

Operating Systems: RHEL 3/4/5/6, AIX, Windows 2003, 2008 R2, 2012, VMware 4.x, 5.x.

Hardware: HP ProLiant, Blade servers, Cisco UCS

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 4.x, 5.0, 5.1, 6.0, Veritas Netbackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Apache-tomcat, jboss, weblogic, WebSphere, Apache, Http Server, IIS 4.0/5.0, MQ SeriesV6.0, V7.x.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, TCP/IP, and tcpdump.

Cluster Environment: Red hat cluster suite, and VERITAS Cluster Servers.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, Python

Backup Management: Veritas Netbackup 4.x/5.x/6.x, ufsdump, ufsrestore, tar, dd, cpio

Monitoring Tools: Nagios, sitescope, cacti, Munin

Other Skills: VMware, VCenter Server, VMware Server, Solaris Zones, LPAR, TSM.

PROFESSIONAL EXPERIENCE

Confidential, Houston, TX

System Admin(Linux, VMware)

Responsibilities:

• Administration of RHEL 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Planned, scheduled and Implemented OS patches onLinuxboxes as a part of proactive maintenance.
• Administration, package installation, configuration of Mono Compiler.
• RPM and YUM package installations, patch and other server management.
• Deployed a distributed Jenkins environment for continuous integration/builds. All builds output rpm packages as artifacts.
• Responsible for packaging all code into RPMs.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked and performed data-center operations including rack mounting, cabling.
• Refresh Linux servers which includes new hardware, OS upgrade, application installation, testing.
• Installing, configuring Redhat servers, automating scripts.
• Installed SSL Certificates on multiple F5 Load Balancer’s.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• 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.
• Worked with Redhat Satellite Servers using Kickstart Mechanism.
• Designing Firewall rules for new servers to enable communication with application. Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat)
• Improved the System Performance by resolving DNS Issues of F5Load Balancer’s.
• Used Nagios tool to monitor the host services actively and passively.
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
• Installing, configuring Apache 2.2.15, Tomcat 7.0 and higher and integrating them.
• Adding servers to the domain and monitoring them using HP monitoring tool.
• Installation, configuration, administration, troubleshooting and maintenance ofVMwarevirtual infrastructure ESXi 5.x vSphere platforms.
• Creation of clusters for (HA) High Availability, (DRS) Distributed Resource Scheduling and vMotion.
• ManageVMwarevirtual infrastructure with Virtual Center Server.
• Conversion of physical servers to virtual environment using P2V andVMwareConverter.
• Administering rights for Users and Groups for Virtual Center access.
• Created and configured new VMs for SharePoint, Business Objects and PeopleSoft applications as per their requirements.
• Experience with VMware update manager to install patches and updates on ESX/ESXi 5.0 hosts and virtual machines.
• Familiar with backup and restore of Virtual Machine backup, snapshot, P2V-V2V conversation with VMware converter and with other third party converters, Patch updating, monitoring/reporting, SSH and SNMP and notification of alerts.
• VMware administration - Implementation, Multi-pathing, Performance tuning & capacity management.
• VM cluster administration: configuration, Load balancing, administrating physical and virtual network connectivity.
• Worked on Tickets according to the priority.

Environment: Red-Hat Linux Enterprise servers(RHEL 5.x, 6.x),CentOS 6.x, Veritas Cluster, Windows 2008 R2, 2012server, Jbos, Mware Infrastructure Esxi 4.x, 5.x, Samba, Apache, Monitoring, Incident Management, Change Managements Request

Confidential, Phoenix, AZ

System administrator(Linux, VMware, Windows)

Responsibilities:

• Server Build and Administration of RHEL 5.x, 6.x, CentOS 5.x, 6.x, Windows 2008 R2, VMware 5.x.
• Cloning Linux Virtual Machines, templates using vSphere vcenter.
• Installing RedHat Linux using kickstart and applying security polices.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• Configure, and automate the deployment of Linux and VMware infrastructure through our existing Kickstart/Jumpstart infrastructure.
• Strong skills in managing Red Hat Linux servers, SAN Storage (EMC, Hitachi), Virtualization (VMware, Red Hat enterprise virtualization preferred), and system security.
• Mentor other systems administrators in engineering, installation, configuration, testing and
• Administration of Linux servers.
• Build, implement and maintain system-level software packages such as OS, Clustering, disk, file management, backup, web applications, DNS, LDAP.
• Installed and configured VCenter update manager for installing ESXi patches and upgradingESXi kernel.
• Configured Vmotion, VSwitches and VLAN in VMware virtual center
• Installed and configured TCP/IP, DNS, DHCP, IIS and terminal services
• Coordinated with storage team for VM storage requirement
• Used Service now for incident reports/ tickets, change management and request management
• Installed and configured VMs with various windows OS
• Deployed VM using Templates and cloning.
• Used VMware update manager for patching/updating VM.
• Created and managed Snapshots for VM backup/restore
• Actively involved in troubleshooting VCenter and ESXi issues and also in system hardware failures
• Involved in monthly updates/patching using WSUS on test servers
• Configure and maintain FTP, DNS, NFS and DHCP servers.
• Configuring, maintaining and troubleshooting of local development servers. Software Implementations.
• Perform configuration of standard Linux and network protocols, such as SMTP, DHCP, DNS, LDAP, NFS, SMTP, HTTP, SNMP and others.
• Worked on virtual and physical Linux host for decommission.
• Installing, configuring Redhat servers, automating scripts, tasks using Samba.
• Managed server on VMware vSphere center.
• Configure Linux guests in a VMware ESX environment.
• Understand server virtualization technology such as VMware.
• Install, test and implement DB2 database management systems and related products.
• Installing IDMU for Linux used username mapping the server.
• Perform problem determination and resolution for database related problems.
• Involved in creating plug-in nagios & Use to monitor and Improved the System Performance using Nagios and custom Plugins.
• Resolved problems in cloud applications by proper identification as per client requirements.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2, 3, 4 node clusters.
• Designing Firewall rules for new servers to enable communication with application, Oracle 11g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant, Dell and Cisco UCS)
• Installing, configuring Weblogic, Apache and integrating them.

Environment: Red-HatLinuxEnterprise servers (HP Proliant DL, Cisco UCS, Dell Series, SAN(Netapp, EMC), BladeLogic, Veritas Cluster Server 5.0,6.0 Windows 2008, 2012 server, ESXi 5.1, 5.5, vSphere 5.1, 5.5, VMware Infrastructure 3.5/4.5

Confidential, Sterling, VA

System Administrator(Linux, VMware, Windows)

Responsibilities:

• Responsible for Design, Build, Configuration and Troubleshooting Red hat Linux 5/6.
• Installed and configured linux and Solaris servers using Jumpstart, configured/ maintained Zones, LDOMs, ZFS.
• Managed packages using RPM/ YUM on Red Hat Linux and maintaining patching on Solaris servers.
• Worked on various SAN Fabrics (FC SAN, iSCSI SAN) and NAS storage.
• Configured Multipath, Powerpath, added SAN, created physical volumes, volume groups, and logical volumes.
• Responsible for setting up and managing Kickstart and Jumpstart environments. .
• Worked with Veritas RAC, VxVM, and VxFS in Linux and Solaris environments.
• Extensively used NFS, NIS, DHCP, FTP, Send mail, and Telnet for Linux.
• Coordinated with database administrators while setting up Oracle 10g/11g on Linux.
• Added disk space and managed various file system on the Linux and UNIX servers.
• Monitored and troubleshot different performance related issues using performance monitoring utilities like iostat, vmstat, top, netstat and sar.
• Installed and updated patches and packages for all the servers.
• Configured and installed apache web servers on the different Linux and UNIX servers.
• Installed databases like MySQL and Oracle on the Linux servers.
• Monitored system logs and important messages for errors and warnings of the hardware and software failure.
• Worked on the concept of Git Cloning to create a copy of the git repository.
• Performed system administration activities like installing, updating the maintenance page, restarting and stopping the services during the maintenance period; generated daily report physically.
• Monitored Linux and UNIX servers using internal tools such as du, df, top, dmesg, who, free.
• Performed ongoing performance tuning, hardware upgrades, and resource optimization as required.
• Made backups of the important files using the tar, zip, gzip and compress utilities.
• Created file systems on LUNs from SAN environments, which included EMC Symmetrix/ Clariion series.
• Created, cloned Linux Virtual Machines, templates using ESXi 5.0 and migrated servers between ESX hosts.
• Monitored CPU utilization using Nagios.
• Actively participated in periodic Disaster Recovery test activities.
• Configured and monitored NFS environment.
• Configured NIC Bondings on Linux and IPMP on Solaris for redundancy of network interfaces.
• Configured and troubleshot Symantec Enterprise Security Monitoring Tool.
• Installed VMware tool from command line with RPM installer.
• Worked on migration concepts like Vmotion and cold migration.
• Created templates and deployed virtual machines through templates, cloning and managed virtual center permissions.
• Created resource pools and added VM’s into the pools providing and maintaining user access in VMware virtual center.
• Configured mail alert for any failure in HA, DRS, CPU and memory in VCenter.
• Involved in monthly patching of infrastructure servers.
• Installed and configured Windows 2008 AD DS.
• Configure DNS/DHCP services on various Windows servers.

Environment: RHEL 5.x, 6.x, OEL 6.x, CentOS 5.x, 6.Xx, Weblogic, Websphere, Apache, Tomcat, MySQL, Oracle 9i, 10g, HP Proliant BL460, BL685, DL 380GS, IBM- AIX RS/6000, pSeries, Veritas Volume Manager, VMware Virtual Client, Kickstart, Jumpstart, JBOSSEMC Symmetric/Clariion.

Confidential, Los Angeles, CA

System Admin, (Linux, Windows and VMware)

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 4.x and Sun Solaris 10/9.0/8.0 using Kickstart, Jumpstart Installation respectively.
• Worked on Solaris 10 container technology, created local and global zones, modified local zone parameters, created file systems on local and global zones.
• Configured and administered Samba to provide file services, resolved various inter-operability issues between Windows NT and Solaris platforms.
• Disk Management using different RAID 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 in RedHat Linux and Sun Solaris.
• Maintained VMware ESX server connected with two EMC VNX SAN box & managed of two Cisco MDS switch using Fabric & Device management tool.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of process in order to increase the system efficiency, scheduling system related and cron jobs.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• Involved FTP Server configuration in Linux and done kernel tuning on Linux for play out software.
• Worked on Oracle OVM, creating LDOMs, adding resources, hardware.
• 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 Red Hat Linux servers.
• Creating and Managing VMware cluster with HA and DRS.
• Creating and Managing resource pools for Virtual Machines.
• Monitoring and managing performance of ESX servers and Virtual Machines.
• Using Virtualcenter server for HA, DRS and Vmotion.
• Working on Migration concepts like VMotion and cold migration.
• Monitor and maintain VMware VDI Environment.
• Creation & Troubleshooting of Virtual Network.
• Creation of templates from VMs and Creation of VMs from templates
• Performance monitoring and tuning for ESX Servers, Virtual Center Server and VMs
• Installation, configuration and management of Windows Server 2003.
• Management for Active Directory and patch management.
• 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, 5.x, Aix, Windows 2003, 2008, Logical Volume manager(LVM), Monitoring, VMware 4.x