Technical Skills Operating Systems: RHEL 5/6/7, Suse Linux, 9/10/11

Vishal

*****.****@*****.***

732-***-**** EXT-***

Summary:

Experience in Linux System Administration working on Linux/Unix.

Strong Experience in Backup, Job Scheduling, Disk Management, Logical Volume Management (LVM), Logical Partitioning and troubleshooting network problems.

Proficient in managing and troubleshooting User accounts, Group accounts and system security in Red Hat Linux.

Extensively worked on administering NFS, and Mail Servers.

Extensive experience with operating systems, network protocols and configurations.

Installed and setup RHEL for web application servers like Websphere, Weblogic, Tomcat, apache and Oracle databases .

Worked on OS migrations, upgrade . Expert in Patch and Package Installation and firmware up gradation.

Installation and upgrade of Software and Patches, configuration mgmt, version control, service pack and reviewing connectivity issue regarding security problem.

Installed RPM packages on Red Hat Linux Servers, updated with the help of YUM and Up2date.

Monitoring system resources, logs, disk usage, scheduling backups and restore.

Enabling Cron jobs and scripts to automate tasks required for optimizing operations.

Good in file-system management, disk management, disk utilization, service management, device management and memory management.

Experience in configuration of Automount, Sendmail, FTP, remote access, Security management and security troubleshooting skills.

Experience in Databases, Clustering, Firewalls and cross-platform tools like SAMBA.

Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.

Experience in creating CRON jobs to automate various system administration tasks using Crontab Utility.

Experience in authenticating and establishing an encrypted channel using certificate-based mutual authentication.

Independent problem solving and a good team player with strong interpersonal and communication skills.

Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.

Ability to work independently as well as a team member.

Education:

Bachelor’s Degree: Electronics and Communication Engineering from JNTU, India

Master’s Degree: Electrical Engineering from Texas A&M University

Certification:

Redhat Certified System Administrator

Technical Skills

Operating Systems: RHEL 5/6/7, Suse Linux, 9/10/11, Fedora LINUX, zVM, Windows 2003, 2008, 2012 and NT

Hardware: HP Proliant .

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas Netbackup 6.0, Bamboo, Jira, MS-Office/MS-Project

Web/ Application Server: Tomcat, Apache DB2, Oracle, MySql, HACMP, Samba, Symantec NetBackup, Veritas Volume Manager, IBM HTTP Server6.1,Apache Geronimo, Apache Server 1.3.x/ 2.0.x

Storages: EMC Symmetric, Clariion, IBM DS3200, DS4000

Network Protocols: TCP/IP, RPC, UDP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, LAN, HTTP/HTTPS, SSL, SOAP, LDAP.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2, Pacemaker, DRBD and VERITAS Cluster Servers 4.1

Programming Languages: C, SQL, HTML, PHP, XML, Bash, Powershell, Perl and Shell Programming, JSP, Python and Ruby

Other tools: VMware VSphere, ESX/ESXi, VCenter Server, Datacenter.

Professional Experience:

AT&T, NJ Feb 2016 – Present

Linux Administrator

Responsibilities:

Managing Linux Infrastructure involves day-to-day maintenance of servers and troubleshooting.

Provisioning Red Hat Enterprise Linux Server using PXE Boot according to requirements.

Performed Red Hat Linux Kickstart installations on Red Hat 6.x/5.x, performed Red Hat Linux Kernel Tuning, memory upgrades.

Building the host using the Kick start and configuration of LVM and maintaining them..

Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.

Installing and configuring Apache and supporting them on Linux production servers.

Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.

Good Knowledge in Configuration management tools like Ansible and Puppet for Deployment on Multiple platforms along with knowledge in Chef.

Performed scripting on Perl and shell for monitoring and scheduling the Jobs.

Perform daily administrative tasks, including log reviews, account, group, system accessibility issues, and server software maintenance.

RPM and YUM package installations, patch and other server management

Responsible for upgrading the Virtual Machines, VMware ESXi hosts and vCenter servers in the organization.

Installed and configured Linux virtual machines on VMware infrastructure.

Created New Virtual Machines, cloning VM, DRS and Snapshots.

Created and managed templates in VCenter.

Server migration from Physical to Virtual (P2V) and Virtual to Physical (V2P)

Installation and configuration of Red Hat Linux on VSphere and VMware ESX.

Took active part in troubleshooting vCenter and ESXi issues and also in system hardware failures.

Responsible for VMware and ESX patch management using vCenter update manager.

Responsible for upgrading the Hardware version and VMware Tools version on the Virtual Machines.

Environment: Red Hat Enterprise Linux, Ubuntu, HP ProLiant DL580 and DL380, IBM P Series, Oracle 11g/10g/9i, MS SQL, Logical Volume Manager, Veritas netbackup, HACMP with EMC, SAN Multipathing (MPIO, HDLM, Powerpath), EMC/NetApp Storage, VM ESX 3.x/2.x, and Windows 2010/2008.

Innovative Information Technologies Inc, NJ Aug 15 – Feb 2016

Linux System Engineer

Responsibilities:

Installed, upgraded and configured RHEL 6.x/5.x. This included Kickstart Installation and CD media.

Modified existing Linux file systems to a Standard EXT3 as well as migrating all Solaris Database files to ZFS to increase system performance.

Migrated the RHEL 5.x Server from old version to new RHEL 6.x.

Installed RPM packages on Linux Servers.

Management of Linux user accounts, groups, directories and file permissions.

Configuration of DHCP Server on Linux to get the IP Addresses Dynamically.

Configuration and administration of DNS, LDAP, NFS, and Sendmail in RedHat Linux.

Configuration and Maintenance of AutoFs in Linux.

Configured SAMBA to get access of Linux shared resources from Windows.

Day to day Linux hardware support, problem and change ticket implementations, composing scripts, OS builds & upgrades along with day-to-day Storage & UNIX Administration.

Tested and implemented Root disk mirroring.

Configuration of Secured Shell (SSH) Linux servers. Automated routine jobs by developing Korn, Perl and Bash shell-scripts.

Configuration and Administration of Apache Web Server and SSL.

Provided 24/7 on call support on Production Servers.

Responsible for maintaining security on Redhat Linux

Environment: RedHat Enterprise Linux 4.x,5.x, Suse Linux, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, Perl, Korn, HP UX, HP Proliant DL 385, 585 Weblogic, Oracle RAC/ASM, MS Windows 2003 server.

TCS, India

Client: Citi Bank

May 2014 – Jul 2015

Linux/Unix Administrator

Responsibilities:

Worked Primarily on RHEL 6/5..

Involved in migration activities using Red Hat LVM.

Writing Shell Scripting for automation of job.

File system tuning, growing, and shrinking with Veritas File system 3.5/4.x.

Manage user accounts for the team access for Red Hat Satellite Server.

Build channels and pull the packages from master Red Hat Satellite Server.

Troubleshooting hardware, software and configuration problems for various protocols and topologies.

Install and configure DHCP, DNS (BIND, MS) and file servers.

Expertise in troubleshooting the systems and managing LDAP, DNS, DHCP and NIS.

Performed patching, backups on multiple environments of Linux and VMware.

Involved in preparation of functional and system specifications. Estimated storage requirements for applications.

Involved in 24X7 Production support, Build and Migration Assignments.

Environment: IBM AIX 5.x/6.x, Red Hat Linux 5.X, Veritas Storage foundation 5.0(Volume Manager 5.0 &VXfs 5.0), VeritasNetbackup 5.1, VMWare ESX 4.x, Tivoli (TSM), IBM HTTP Server6.1, Apache Server 1.3.x/ 2.0.x.

PMR SOFT, India Feb 2013– Apr 2014

System Admin

Responsibilities:

Responsible to solve technical Problems related System administration (Linux of Our Clients).

Maintaining and Troubleshooting of FTP Server, Samba Server of the client.

Handling the day-to-day Operations, Install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts.

Maintain 99.98% uptime of LINUX production servers and follow proper escalation.

Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis.

Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite.

Handling the day-to-day Operations, Troubleshooting & Solve Server Problems in LINUX.

Installing and configuring Red Hat Linux locally or over the network-kick start- (nfs, ftp, http). User Administration (setup and maintaining accounts).

Maintaining Server and Systems, provide IT support to User.

Monitoring system performance, Server load and bandwidth issues.

Installing open source application, search, analyze and develop new application for users.

Updating Systems, Servers and client software's.

Implement the policies for the users of the computer system and network.

Regularly manage backup process for Server and Client data.

Environment: Red Hat Linux (RHEL 5), Logical Volume Manager, Global File System, Red Hat Cluster Servers, Oracle, MySQL, DNS, NIS, NFS.

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