SUMMARY

• 7 years of experience as IT professional with Linux Administration, Shell Scripting and 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.
• 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 Scripting.
• 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, Windows Server 2008, Windows Server 2012 VMware, VSphere.

Server Hardware: Confidential 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, VSphere 5.1, 5.5.

PROFESSIONAL EXPERIENCE

Senior Linux Administration

Confidential, NASHUA, NH

Responsibilities:

• Involved in implementation of infrastructure for Confidential ’s new project called GS cloud.
• 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.
• Creating the LUNs on Confidential EqualLogic and attaching to virtual machines.
• 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.
• 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.
• 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 administration

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.
• Interacting with the customers. Providing on call support to the customers during product installations or upgrades.
• 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 Confidential 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.
• Experience in installation and configuration of samba server, sendmail, and postfix, LDAP Server, NIS and NIS
• Installing and updating packages using YUM (custom YUM servers/repositories).
• Patch Management of servers and maintain of servers

Linux administration

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.
• 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.
• 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.
• Job scheduling through Crontab.
• Configured RHEL Servers (virtual) using VCENTER.

Environment: Centos 5/6 Red Hat Enterprise Linux 4/5, VMWare, VCENTER, SAMBA, DHC, NIS.

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.
• ConfiguringRAI Ds 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.
• 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 prod issues.

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