Prashanth

Summary:

Having *+ years of experience in IT industry in the areas of System Administration, System Support, Capacity Planning and Troubleshooting UNIX servers, Managing and Administering, SUSE Linux, RHEL 4/5/6, Windows and AIX, SUSE Linux.

Hands on administrative experience on installation of Packages and Patches in Linux using Redhat Satellite server.

Installed, configured and implemented automating the provision of OS by using KickStart for Redhat.

Extensive experience on configuration and OS installation through network and standalone installation technique, and also installing third party software and services.

Experienced in configuring Volume Management by using Logical Volume Manager (LVM) in Linux, Veritas Volume Manager (VxVM).

Proven ability in implementing High Availability environment using Veritas Cluster Server 4.1 with agents of Send mail, Web logic and NFS.

Working experience with cloud infrastructure of AWS (Amazon Web Services) and computing AMI virtual machines on Elastic Compute Cloud (EC2).

Regularly updated all software and operating systems on the instances running in EC2, to eliminate security loopholes.

Experience in Installation and configuration of VMware ESX server 3.5 on Dell and HP Proliant servers and configured VMs for Linux.

Working knowledge of various SMTP Servers – Send mail 8.12.11, 8.14.2, Postfix 2.x, and Exchange 2000/2003

Expert in UNIX shell scripting – ksh, bash, sh and knowledge of PERL scripting.

Experience with patch and package administration including building of packages and RPMs.

Experience in diagnosing and resolving TCP/IP connection problems

Experience in performance tuning, trouble shooting and resolving network issues, related to the servers.

Experience in administering Webserver Apache and Application server JBoss.

Experience with switches and routers from various vendors like Cisco, Dell, and HP.

Experience in making Disaster Recovery and Disaster Contingency Plans; DR with SunGard, SRDF devices.

Excellent written and verbal communication skills.

Experienced in managing and creating all kind of file systems like VxFS, ZFS, Ext3, Ext4, UFS.

Expert on Raid-0, Raid-1, Raid-5 and created Logical Volumes, Logical Volume Groups and manipulated them as required

Experienced in configuration, installation, and support of JBOSS, Tomcat, Apache Web server, WebSphere, LDAP and mail server.

Hands on experience in user Administration, Hardware setup, and managing paging/swap space.

Highly experienced in Process automation and Monitoring using Shell Scripts.

Accomplished backup procedures using Veritas Netbackup and performing Disaster recovery and patching.

Competent in DHCP Server, NIS, NIS+, LDAP, NFS, TCP/IP and Samba.

Strong understanding with VMware. Installed and monitored Virtual environments with ESX/ESXi servers and VirtualCenter2.X.

Skilled in Storage Area Network (SAN) that consisted of McData Sphereon, HDS 9980v.

Dealt with administrative tools like ILOM and KVM to manage change request in data center, and emergency situations.

Managed and dealt with system performance and monitoring tools like Nagios, Cacti, GNOME.

Provided support and troubleshoot problems related to bootloaders like GRUB and LILO and performed PXE boot.

Managed, configured and installed puppet on various servers.

Experienced in writing concise and clear documentation.

Effective conflict resolution and problem solving capability.

An effective team player and motivate team members to achieve desired targets.

Efficient interpersonal and communication skills.

Dealt with on call support and round the clock service (27/7).

Key Technical skills:

Operating Platforms

SUSE 9,10,11, Linux (Red Hat 4.x, 5.x, 6.x), VMware ESX 3.5,4.0, Ubuntu 10.04/12.04

Programming Languages

Perl and Ruby scripting, C, C++, Shell scripting –ksh, Bash and csh, Python, HTML.

Hardware

Sun Enterprise 250,450,3500,4500, 280R, V480, SunFire 4800, SunFire 6800, Sun Fire Starcat E15K Servers, M5000, T2000, T5240, x4100, x4250, x4440, Acer Intel Servers, DLT, AIT, DAT & CTD Backup Devices, Jukebox, Ethernet Hubs, Repeaters, Routers, LAN Testers, Cable Modems, Terminal Servers & Print Servers, DLT/DDS drives, Sun A5000, 5200, D1000, 3510.

Networking Systems

DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP, TCP/IP, NIS, NFS.

Disk Management

Sun Volume Manager, Logical Volume Manager, Veritas Volume Manager 4x, 5.x, 6.0.

Backup Solutions

Veristas Netbackup 4.5,5.0,6.5

High Availability

Veritas Cluster Server 4.x, 5.x

File Systems

UFS, VxFS, Ext, Ext2, ext3, ext4, ZFS

Monitoring Tools

Nagios, snmp,Tivoli, splunk

Web/Application Servers

Amazon Web servers(AWS), Web Logic 8.x, 9.0, 10, WebSphere 5.x, 6.x, JBoss4.x, 5x, Netscape/iPlanet Server, Apache Server 1.3.x, 2.2.x, Apache Tomcat 5.x, 6.x, 7.x.

Professional Experience:

Sabre Corporation Southlake, TX May 2017 to till date

Linux / DevOps Administrator

Roles &Responsibilities:

Installed and configured operating system RedHat Enterprise Linux (RHEL5/6).

Configured and managed groups and User accounts, setting up User environments in Linux.

Performed Root password recovery in the Linux servers.

Arranged KickStart for RHEL 5/6 to perform image installation through network.

Built system process and supervised the server performance using vmstat, ps, top, netstat, iostat, prstat, free, prtconf.

Worked on Configuring Active directory and integrating with Linux Environment

Worked on installing and configuring tools like QAS/VAS and integrating with Redhat servers .

Managed file servers, directory services, Web servers, and set up user accounts.

Administered, Installed, and Configured TCP/IP, NFS, DNS, NIS, NIS+ and DHCP.

Worked on Ansible to automate AWS instance creation and also Deploying application.

Investigated and resolved diagnostic problems on Linux.

Monitored file system usage, investigate and repaired file systems.

Secured, monitored, and patched the server using Red hat Satellite Server.

Creating, cloning Linux Virtual Machines, templates using VMware vsphere client 5 and migrating servers between ESXi hosts.

Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.

Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager.

Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, CloudWatch, CloudTrail, and Security Management VPC.

Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.

Worked on Docker and created virtual instances with Docker.

Managed disk space using various types of file systems, and volume management solutions: VxVM, ZFS, LVM and SVM.

Maintained User accounts and groups, setting up User environments in Linux.

Removed, Installed, Upgraded, and queried software packages using RPM and YUM.

Performed Root password recovery in the Linux servers.

Administered KickStart for RHEL 5/6 to perform image installation through network.

Managed data stores and vcenters with VMware Installation and ESX hosts configuration.

Managed, configured, and Installed Sudo for users to access the root privileges; also familiar with powerbroker environment, for role-based privileges.

Install, configure and administer log analyzer tool CloudWatch.

Worked with ANT, maven and JIRA.

Worked on migrating Vmware to AWS using snowball and VM import/export.

Experience with AWS bean stalk

Experience working on AWS code deploy, lambda, VPC and CLI.

Experiencing with Nagios, splunk and snmp monitoring.

Configured Nagios monitoring tool for monitoring the server/app status, disk space issues, and log parsing.

Managed and architecture virtual servers. Monitored server traffic through Nagios. Administered web servers on Apache and Nginx. SQL queries and administration.

Migrate on premise database to AWS Cloud and also designed, built, and deployed multiple applications. utilizing the AWS stack (Including EC2, R53, S3, RDS, SNS, and IAM), by focusing on high-availability, fault tolerance, and auto-scaling.

Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.

Configure and administer Apache and Application layers

Configure HTTP caching properties for static caching.

Documented and upgraded Veritas storage foundation / Veritas cluster from version 5.0 to 6.

Guided and worked with storage teams to configure EMC SAN, NAS, and iSCSI configuration.

Managed and worked with various protocols: FTP, TCP/IP, DHCP, HTTP, UDP, DNS, NFS, and NIS.

Worked on version control using Github.

Worked on automating builds using Jenkins.

Experience with AWS SDK and AWS API.

Worked on automating tasks using puppet

Worked on tomcat, jboss install and configuration.

Worked on mongodb and mysql.

Worked on creating new LPARS on AIX IBM frame

Worked on ruby and python scripting.

Automate infrastructure in AWS using amazon web servicesInstalled and managed various automation and monitoring tools on Red hat Linux like Nagios, IBM Tivoli monitoring 6.x and Tivoli Endpoint Manager.

Configured cron jobs, job scheduling and batch processing; in addition, experienced with workings of other automation tools like autosys and uc4.

Solved tickets issues on day to day activities and problems related to development and test servers.

Provided 24x7 on call support when required.

Environment: AIX 5x, 6x, 7x, IBM Power7, Power6 and Power5, VIOs, NPIV, RedHat LINUX 5.5/6.3, Ubuntu, Windows, Oracle, DB2, SQLserver, Korn, Oracle RAC, C Shell, Yield Book, Razor, Vsphere, HMC, Tibco, HACMP, GPFS, VMware, CA Spectrum, CA EHealth, Netapp, TSM, Symantec Netbackup, Hitachi VSP, Hitachi Command Suite, Hitachi storage navigator, HUR, SI, TC, TSM, CSM, IBM XIV, SAN SVC, NAS, Autosys, TPM V7.1,CA Service Desk, Apache Webserver, MQ, Websphere Application Server & UNIX shell scripting.

Caterpillar Inc Peoria, IL Sept 2016 to Apr 2017

Linux / DevOps Administrator

Roles &Responsibilities:

Performed system administration activities using used NFS, NIS, DHCP, FTP, Send mail, and Telnet for Linux.

Designed, Built, Configured and Troubleshot RedHat Linux 5/6.

Managed various file system and added Disk Space on the Linux and UNIX servers.

Troubleshot and monitored various performance related issues using performance monitoring utilities like VMSTAT, NETSTAT, TOP, IOSTAT and SAR.

Updated and installed packages and patches for all the servers.

Installed and configured apache web servers on various Linux and UNIX servers.

Monitored system logs and important messages for warnings and errors of the software and hardware failure.

Responsible for system administration activities like updating the maintenance page, installing, stopping and restarting the services during the maintenance period; generated daily report physically.

Worked with UNIX and Linux servers using internal tools such as who, du, df, top, dmesg, free.

Responsible for setting up and managing hardware upgrades, performance tuning, and resource optimization as required.

Involved in various SAN Fabrics (FC SAN, iSCSI SAN) and NAS storage for effective and efficient storage.

Responsible for setting up and managing Multipath, Powerpath, added SAN, created physical volumes, volume groups, and logical volumes.

Configured KickStart and Jumpstart environments.

Made backups of the critical files using gzip, tar, zip, gzip and compress utilities.

Migrated servers between ESX hosts and Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5.

Configured and monitored periodic Disaster Recovery (DR) test activities.

Managed NFS configuration to set up servers.

Developed Chef recipes to configure, deploy and maintain software components of the existing infrastructure

Setting up & trouble shooting the nightly/on-demand builds for all Patches/Hot-fixes and for all releases

Setting up Jenkins Continuous Integration builds for all releases on windows and Linux.

Involved in meetings with Dev managers to Create, manage and maintain the SCM Plan, standards, and procedures

Integrated Maven with Subversion to manage and deploy project related tags.

Installed and administered Nexus repository to deploy the artifacts generated by Maven and to store the dependent jars which are used during the build.

Installed and configured Jenkins tools on Linux and windows platforms, Manage slaves and installing Jenkins plugins.

Streamlined Build process for Fortify scan of code from Manual to Automated mode by setting up Jenkins Automation environment, thus reducing manual error prone, Build time, No logging to machine is required.

Following agile methodology using RTC as a supporting Tool.

Administering Hudson/Jenkins CI servers, HP Quality Centre, HP Fortify, Build servers, Code collaborator.

Had setup one of the build components as a Developer’s Self-service.

Developed Shell script to list recent ‘n’ number of builds for all the components.

Installed and configured Sonar server and client configured Jenkins jobs to run Sonar Analysis jobs.

Worked on Red hat Linux 3, 4, 5 and 6 / Scientific Linux 5 and 6 and Centos 5, 6.

Created Splunk Apps with custom navigation features and user based permissions.

Managing Splunk architecture on day to day basis and troubleshooting Splunk environment related issues.

Configured Bamboo Build jobs for pre deployment process (DB execution, Environment configuration changes etc.) on both QA and preproduction Environments

Performing Build & Release activities for Major releases

Worked closely with the development and operations organizations to implement the necessary tools and process to support the automation of builds, deployments, testing and infrastructure (infrastructure as code) using Chef.

Worked on AIX to Linux migration .

Worked on NPIV setup on AIX

Worked on Redhat Linux installation on VMware..

Developed Chef recipes to configure, deploy and maintain software components of the existing infrastructure

Setting up & trouble shooting the nightly/on-demand builds for all Patches/Hot-fixes and for all releases

Setting up Jenkins Continuous Integration builds for all releases on windows and Linux.

Integrated Maven with Subversion to manage and deploy project related tag.

Installed and administered Nexus repository to deploy the artifacts generated by Maven and to store the dependent jars which are used during the build.

Installed and configured Jenkins tools on Linux and windows platforms, Manage slaves and installing Jenkins plugins.

Streamlined Build process for Fortify scan of code from Manual to Automated mode by setting up Jenkins Automation environment, thus reducing manual error prone, Build time, No logging to machine is required.

Following agile methodology using RTC as a supporting Tool.

Administering Hudson/Jenkins CI servers, HP Quality Centre, HP Fortify, Build servers, Code collaborator.

Troubleshot and configured Symantec Enterprise Security Monitoring Tool.

Provided 24x7 production support for 700+ Linux.

Presented weekly system status report and maintained documentation reports.

Environment:RedHat Enterprise Linux 4/5/6;SuSe Linux Enterprise Server (SLES) 9/10; VMWARE; Lenovo workstation’s (D2, D3, D10, D20); DELL PowerEdge 1650,2850,2950,6400; Sun SPARC workstations (A21, A22, A70, A89) and Servers E450, E3000, E3500; HP-Proliant DL 360G5; NFS; NIS; DNS; Shell/PERL scripts; SAN; Tivoli; Puppet; Nagios; SVM; LVM; ZFS; zones; VxVM; Oracle 9i; VxVM; Apache 2.x.

Capital one, Plano, TX March 2015 to August 2016

System admin

Roles &Responsibilities:

Installing, Managing & troubleshooting all the issues on 50,000+ critical Trading production, development and QA servers.

Administered, Installed and maintained Red Hat Enterprise 5.x, 6.x.

Maintained and supported 700+ Server in Production in development, Test and Production environments.

Configured Kickstart and Jumpstart Servers RHEL 4.x/5.x .

Packaged management and Added patches on Red-hat Linux servers using RPM’s &YUM.

Configured and installed VERITAS file system, VERITAS volume manager and VERITAS cluster server; Troubleshooting and maintaining VCS for failover and redundancy.

Maintained and configured VERITAS file system, VERITAS volume manager, and VERITAS cluster server.

Troubleshoot and maintained VCS failover and redundancy.

Handled and upgraded Sun Cluster, Red-hat Cluster server, VERITAS Cluster server, Zone administration and configuration.

Configured and Installed Websphere and Apache servers.

Accomplished and Deployed NIS and NFS for administrative and project requirements.

Handled and upgraded Nagios and VERITAS Netbackup for monitoring system resources, logs, disk usage, scheduling backups.

Used VMware ESX, VMware VCenter, VMware virtual infrastructure for server consolidation and virtualization.

Upgraded and handled Storage, coordinating with vendors on EMC Clarion.

Worked on adding new Users and groups and give sudo access in test and development servers and central file synchronization via sudoers, authorized_keys, passwd, shadow, group.

Worked with DBA team in installing and configuring Oracle 10 g and 11g, Sybase, Db2 client v 8.1 and v9.0.

Coordinated with application team in installation, configuration and troubleshoot issues with Apache, Web logic on Linux servers.

Used VERITAS Volume manager to create disk groups, volumes, volume groups, and RAID’s.

Installed and configured Veritas Storage Foundation Suite, Volume Manager, Cluster Servers & Veritas File systems (Vxfs).

Installation and Configuration of SSH, TELNET, FTP, DHCP, DNS.

Local and Remote administering of servers, routers and networks using Telnet and SSH.

Installed/Configured/Maintained/Administrated the network servers DNS, NFS and application servers Apache and Samba server.

Worked on LAN/WAN, firewalls, and routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP, HTTP/s, FTP, SMTP & SSH.

Accomplished Disk Mirrors and RAID 0, 1 and 5 levels on several UNIX/LINUX servers.

Involved in back up, firewall rules, LVM configuration, monitoring servers and on call support.

Worked on Unix shell scripting for system/application in automating server task, installing and monitoring applications and data feeding file transfer and log files.

Worked closely and configured IP Multipathing on existing servers to avoid the downtime in case of Network Migration.

Handled capacity planning, system performance, and SLA compliance.

Environment:RedHat Enterprise Linux 3/4/5, HP-UX 11.0/11i, AIX 5.1/5.3L, Sun Fire 4800/3800/V880/ Sun Enterprise 6500/500/4500/450/420R/250 servers, Nagios, EMC Clarion/Symmetric, VERITAS Clusters, HP 9000 K, L, N class server, IBM RS/6000, VERITAS volume manager 4.5, 5, VERITAS cluster server 5, VERITAS Netbackup.

Bank of America Jan 2014 – Feb 2015

Linux Support Engineer

Linux expert with experience in Commends, Load-balanced, Configuration and web servers

Progressive experience in IT industry as the Linux System/VMware Server Virtualization

Planning and Implementation of Kernel patches on RHEL Servers

On-call support using the Remedy Ticket System for routine system administration issues

Used VM converter converting Physical machines in VMware VMs

Monitoring and analyzing performance of around 3500 ESX Hosts, 35v Center Servers

Created VMware Lab setup as per Internal QA team’s requirement using VMware servers

Experienced with Learning on the job and explore new technologies with little supervision

Automated Linux production server setup using Puppet scripts. Used these scripts to replicate production build environments on a local dev box using Vagrant and Virtual Box

Tuned the TCP/IP stack for troubleshooting application and OS issues

Used NetBackup for backing up & restoration of file systems

Built new servers using the Custom jumpstart installation and Kick start

Secured services using TCP wrapper and SE Linux

Strengthening security by implementing and maintaining Networks Address Translation in the company’s network.

Worked with Firewalls using IP Tables

Configured firewall based on Red Hat Linux and FreeBSD 4.x that has three network interfaces

Involved in Setting up Continuous Integration Environment using Jenkins and responsible for design and maintenance of the GIT Repositories, views, and the access control strategies

Opened SSH configuration, Sudo Configuration

Repaired the corrupted file system using FSCK

Created Logical Volumes (LVM) for Linux operating system

Wrote Bash Shell scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers

Maintained, updated and audited system documentation

Installation and Implementation of Apache Application Server

Mavin InfoTech Hyderabad, India Jan 2011 to Dec 2013

UNIX/ Linux Administrator

Roles &Responsibilities:

Execute performance as advanced system administration, operational support and problem resolution for a large complex Unix/Linux computing environment, including both virtualized and physical servers. Used Shell scripts to manage server performance, user activities and monitor file system usage

Working knowledge of activity automation Shell

Perform Unix/Linux administration including changes, deletes, disk space management, application installation, and backups

Working knowledge of activity automation Shell

Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment. Worked with Apache and developed several UNIX scripts to automate web tasks

Linux Operating Systems Installation, Configuration and Maintenance

Installation, Configuration & Upgrade of Linux operating system

Created different scripts for automating Linux/UNIX server tasks using shell scripts

Support VMware environment including changes, adding/removing systems, and disk space management

Provided system administration support for Red Hat /CentOS Linux and physical servers

Environment: Redhat 4/5, Apache 2.2, JBOSS 4.2, Centos, Redhat, UNIX, Linux, Shell, Jumpstart, KickStart, LDOMS 1.2, VMware, Volume Management, Veritas Cluster Servers.

B.TECH (COMPUTER SCIENCE AND INFORMATION TECHNOLOGY)

Jawaharlal Nehru Technological University

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