PROFESSIONAL SUMMARY:

• 8 years of experience as IT professional with Linux Administration, Shell Scripting and Windows, VMware, vSphere 5.1, 5.5 administration. Insightful experience in implementation, operations and support functions of mission - critical business solutions using IT as a tool.
• My skills include automating the configuration and maintenance of different services like DNS, ISC DHCP, Remote Administration, Server Migration, Network Monitoring using Nagios and MRTG, Configuring and Maintaining APACHE servers, SAMBA, SSH, SSL, SMTP and NFS services, Security administration using IP tables and TCP wrappers, RAIDs, LVM, performing the Automated Installations using PXE and Kickstart, Performance Monitoring & Tuning, Backups and Restoration.
• Experience in Creating and maintaining User accounts, profiles, security, rights, disk space and process monitoring.
• Experience in Package management using RPM and YUM in Red Hat Linux.
• Worked on VMware, vSphere, installing and configuring vSphere 5.1 and 5.5, creating and configuring Guest machines, managing multiple ESXI servers through Centre.
• Trouble shooting issues related to VMware ESX host, VMware virtual center, HA, DRS, VMware update manager.
• Aided the VDI team for desktop and application virtualization using VMware view 4.6 and VMware Thin app 4.6.
• Experience in install, configure and manage VMware ESXi, Virtual Center management, VMware Site Recovery Manager (SRM ) and VMware View desktop virtualization infrastructure (VDI), creating Reports using VMware vRealization Operations Manager (vROPs).
• Supported VMware, specifically ESXi 6.0/5.5 to monitor cluster performance, optimize the server environment, diagnose and resolve production issues amongst Data Centers and over servers.
• Develop, test, and maintain a disaster recovery plan for critical VMs and application data.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers.
• Monitoring and troubleshoot backups and schedule Cron jobs.
• Automate administration tasks through use of Shell Scripting .
• Excellent experience with VMware Update Manager (VUM) to install patches and perform upgrades on ESXi hosts.
• Performing software installations and upgrades to Linux systems and maintaining them in accordance with established policies, procedures and service level agreements.
• Installed, configured and maintained Windows 2003, 2008 and 2012 Operating Systems.
• Excellent knowledge on Linux Migrations.
• Worked on Change Management and Disaster Recovery management.
• Highly self-motivated and enthusiastic.
• Ability to switch easily between different projects and flexibility to handle rapidly changing environment.
• Good communication and interpersonal skills.

TECHNICAL SKILLS:

Operating System:: Linux, Windows Server 2008, 2012, VMware, vSphere.

Server Hardware:: Dell PowerEdge, HP ProLiant, HP Blade machines, IBM X-series.

Applications:: MS Office 2003, 2007, Outlook 2003, Open Office, VMware workstation

Software:: Linux Administration, Knowledge of Shell Scripting, DNS, NIS, NFS, DHCP, SMTP, SSH, SSL, FTP and TFTP Services, Apache 2.x, Samba, VMware Administration, vSphere 5.1, 5.5, VDI Administration.

PROFESSIONAL EXPERIENCE:

Linux & VMware Administrator

Confidential, Columbus, OH

Responsibilities:

• Giving support and daily maintenance to E-lab advisor
• Installing and Configuring the Virtual Machines on ESX 5.5, maintaining more than 200 VMs.
• Configured Apache servers, Apache load balancing and securing Apache using mod security.
• Managing ESXi servers through v Centre.
• Automating Daily activities using Shell Scripting.
• Worked closely with Windows and other teams for supporting daily activities i.e. system/network changes for all Linux and Windows 2000 Servers.
• Creating the LUNs on Dell EqualLogic and attaching to virtual machines.
• Automation of regular administration tasks with the Shell Scripting and Configuration management tools.
• Setting up SAMBA & NFS servers, to enable Windows clients to communicate with Linux
• Maintained a FTP site. Configured NFS Server for file shares.
• Configured NFS cluster using Red Hat Cluster Suite and Heartbeat and configured the shared storage using RDM across Virtual Machines.
• Installed and configured packages, patches on Red Hat Linux environments.
• Hands on experience using the VI editor.
• User management.
• Centralizing the logs for trouble shooting the issues.
• Monitoring system performance and prevented resource exhaustion using ssh, vmstat, iostat, netstat.
• Creating shell scripts to monitor systems to reduce downtime of the Linux servers.
• Integrating to Linux domain and windows clients using Samba server.
• Executed and Built servers through Kick start and Pxe installations.
• Performing snapshots and server reboots of Linux servers via VMware vCenter.
• Active role and representation for the Disaster Recovery process for the company. Attend DR meetings and conduct mock tests.
• Installed patches and updates on ESX Hosts and Virtual machines using VMware Update Manager.
• Experienced using Red Hat Satellite server to deploy, monitor, update, and manage systems.
• Configuring the RAID’S.
• Configure Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Create and manage user accounts and permissions.

Environment: Red Hat Enterprise Linux, Web Servers, FTP, Apache load balancing, Shell Scripting, Red Hat Linux, Kick start and Pxe installations, RAID’S, Disk Management, User and Group Administration, VMware, ESXi, vCenter, SAN.

Linux administrator

Confidential, York, PA

Responsibilities:

• Installed and configured several Red Hat Servers and VMware, ESXi 4.1, 5 & 5.5 Virtual Environment.
• Providing the support for different services like DNS, DHCP and NFS
• Managing ESXi servers through V Centre.
• Building the Linux packages and applying patches.
• Technical problem solving (debugging and tracing of enterprise level applications)
• Client OSS overall system administration activities.
• Expertise in configuring the VMware environment with all available features like vSphere High Availability (HA), Distributed Resource Scheduler (DRS), vMotion, Storage vMotion, vSphere Fault Tolerance(FT), Host profiles, Storage profiles, Resource Management and Performance Monitoring.
• Managed disk space on servers.
• Experience with the shell scripting on bash shell to automate the system administration jobs.
• Interacting with the customers. Providing on call support to the customers during product installations or upgrades.
• Developed startup and automate scripts using Bash Shell Scripting.
• Preparation of user guides and functional descriptions, conducting the periodic reviews of the existing documents.
• Maintaining RAID disk configuration on Linux servers.
• Setting up and resolving Nagios alerts.
• Working on HP Blade machines and Dell power edge servers.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers.
• Expertise in security hardening (iptables / selinux) major Production Servers, and compiling, building and installing web server-based Linux tools.
• Perform day to day LVM operations and System Admin tasks.
• Installation and support of Red Hat Enterprise Linux using Satellite server(Kickstart)
• Experience in installation and configuration of samba server, send mail, and postfix, LDAP Server, and NIS.
• Installing and updating packages using YUM (custom YUM servers/repositories).
• Patch Management of servers and maintain of servers.

Environment: Red Hat Enterprise Linux, VMware ESXi, DRS, VMotion, DNS, DHCP and NFS, ESXi, VCenter, Shell Scripting, RAID, LVM, Nagios, NIS.

Linux administrator

Confidential, Columbia, MD

Responsibilities:

• Maintained and supported production and test environments.
• Build, configure, deploy, support, and maintain enterprise class servers and operating systems
• Building Centos 5/6 Servers, Oracle Enterprise Linux 5 and RHEL (4/5) Servers from scratch.
• Organized the patch depots and act as POC for the patch related issues.
• Configuration & Installation of Red hat Linux 5/6, Cent OS 5 and Linux 5 by using Kick Start to reduce the installation issues.
• Updating/Patching Linux, Windows Virtual Machine in VMware VM's
• Deployed and tested patch bundles for Cent OS before release and distribution of the bundles in to the organization. User and Group administration on RHEL Systems.
• Creation of various user profiles and environment variables to ensure security.
• Server hardening and security configurations as per the client specifications.
• Configuration and management of DHCP, SAMBA, NIS and Postfix servers.
• Worked with storage and DB teams for successful hand-over of the projects.
• Planning and implementation of NAS backup for the servers.
• Configured and managed access privileges and security
• Created simple scripts and cron jobs to automate repetitive tasks.
• Worked on installation and configuration, Red hat Cluster Suite in Linux Servers. Performed installation, configuration, upgrades, Package administration and support for Linux systems on client side using Red hat satellite network server.
• Responsible for cloning between production, test and QA environments.
• Responsible for backing up the production environment.
• Managed various web and application servers such as apache.
• Configured and managed Virtualization technologies like VMware.
• Schedule VM Backup and Snapshots and manage/reload Snapshots.
• Job scheduling through Crontab.
• Configured RHEL Servers (virtual) using VCENTER.

Environment: Centos 5/6 Red Hat Enterprise Linux 4/5, VMWare, VCENTER, SAMBA, DHCP, NIS, Kick Start installation.

Jr. Linux Admin

Confidential

Responsibilities:

• Responsible for installation, configuration, and administration of Linux.
• Physically racked new hardware components and servers.
• Involved in applying Patches, Installing patch bundles on Solaris and Red hat Linux.
• Build Solaris/RHEL servers including jumpstart/kickstart servers.
• Configuring RAIDs and LVMs.
• Performing backups using dump, tar, Rsync.
• Performance monitoring using Iostat, Vmstat, top.
• Securing the servers using Iptables, TCP Wrappers.
• Network & Resource Monitoring using Nagios.
• MRTG, NTOP for monitoring the Network.
• Applied patches on Windows servers and workstations with Company standards.
• Configured VMware and installed several Linux and Windows Operating Systems according to the client needs and involved in Maintenance and Troubleshooting of VMware.
• Maintain Web servers, file servers, firewalls, and directory services, and set up user accounts.
• Worked on creating, mounting and unmounting new file systems.
• Responsible for Day to Day Backup and Recovery using tar. Updated backup scripts on different environments.
• Day-to-Day application support on production and technical documentation for critical issues.

Environment: RHEL 4.x, DELL Power Edge 2850,2950, Shell scripting(Bash), VMware workstation, Apache 2.2.x, MRTG, NTOP, RAIDS.

System Admin (Linux, Windows)

Confidential

Responsibilities:

• Installed, Configured and maintained Red Hat Linux, CentOS and Windows Servers.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery
• Systems performance monitoring.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Solving the problems as & when created when NFS data being accessed.
• Configured auto mounts/maps for the user accounts.
• Administration/Configuration of Print Servers/Clients in the Network.
• Manage and monitor Active Directory services and group policies.
• Worked elaborately on different windows environment which include Windows NT version 4.0, Work Station, Terminal, 2000 and 2003.
• Assigning folder permissions to the users by gathering approval from the group owners.
• Worked closely with database administration staff to ensure optimal performance of databases and maintain development applications and databases.
• Assembling the systems and installing operating system and application software.
• Designing computer displays to accomplish goals using flowcharts and diagrams.
• Installing Operating Systems and Application Software.

Environment: Red Hat Linux 3.x/4.x/5.x, CentOS 4.6/4.7/5, Windows 2003/2008 R2, VMware ESX 4.0, VMware Update Manager, VMware, Apache 2.0, NFS, Software RAID, DNS Servers.