SUMMARY

• 6+ years of IT industry experience in System Administration with extensive experience in Red hat Linux & UNIX Server Administration.
• Installing, upgrading and configuring Red hat Linux Enterprise 5. x, 6. x, 7. x by using HP server Automation Software.
• High level planning in storage array configurations, deployments and installations
• Expertise in configuration and implementation of SAN disk and tape storages on the Open systems environment such as AIX, SUN, HP - Unix, Linux, VMware and Windows Systems
• Experience working with Perl, shell scripting (ksh, bash, Awk) to automate administration tasks.
• Implemented day-to-day tasks in Red Hat Linux, AIX and Solaris include upgrading packages, kernel, and drivers.
• Plan and execute AIX and also develop AIX projects within approved timelines.
• Knowledge on Cloud Platform tools like OpenStack, AWS, Rackspace, Microsoft Azure, Google Cloud.
• Experience in implementing High Availability Solutions using VERITAS Cluster, HP Service Guard, RedHat Cluster Server and SUSE cluster.
• Implemented day-to-day tasks in RedHat Linux, AIX and Solaris include upgrading packages, kernel, and drivers.
• Excellent in installing, configuring and administering Linux Volume Manager, Solaris Volume Manager
• Installing and configuring of Web hosting administration such as HTTP, FTP, SSH, & RSH.
• Expert in installing, configuring and maintaining DNS, NIS, NIS+, NFS, DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Proficient in Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, User Management, Process Management, Memory Management, and Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Worked on oracle database migrations from HP-UX to IBM AIX and application migrations from Sun Solaris to Linux operating environments
• Strong experience with Linux & Windows Server administration for backup servers
• Performed network authentication of users using Quest Authentication Services
• Develops Power CLI and PowerShell scripts to complete some daily tasks.
• Solely Responsible for maintaining Nagios by adding and removing devices for monitoring, and reporting the health of the Nagios process.
• Ongoing projects and support of OS X including Mac hardware systems and departmental specific software. Management of entire enterprise Mac
• Good knowledge of implementing maintained DevOps configuration management tools puppet/chef, Ansible.
• Experience working with YUM server and Red hat satellite server
• Proficient with mail technologies such as SMTP/ICMP/POP3/send mail/mail x. Proficient in writing Shell scripts to automate business process.
• Experience in Installing, configuring and maintaining apache/tomcat, samba & send mail.
• Expertise in VMware Virtualization solutions, VM Migration & Cloning.
• Good presentation, customer support and trouble shooting skills & experience in providing 24x7 supports

TECHNICAL SKILLS

Operating System: Solaris 11.2/11/10/9/, IBM AIX (4.3, 5.x,6.x)Red Hat Linux 5.x, 6.x, 7.x Windows 2000,2003,2007.

Hardware: Sun Fire V440/V480/V880/V890, Sun Enterprise ServerT5120, Oracle Ultra Enterprise Servers M4000/M5000/T4-1/T4-2/X4-2, Sun Storage 7310/6120/6140. Oracle SAN Storage Pillar Axiom 600. HP-9000, K,L,Nseries, IBM RS/6000 Brocade 300 switches

Web/Application Servers: Tomcat, Apache, WebLogic

Cluster server: Veritas Cluster, Sun cluster

Scripting Languages: Born, Bash, KSH & Perl, SED, AWK, Python.

Programming Language: Shell Programming, PERL, SQL, PL/SQL, C, HTML.

Databases: MSSQL server, Oracle, DB2/UDB, AS/400, Sybase

Tape Hardware: Storage tek Tape libraries L40, L80, L180, L700

Network Protocols: TCP/IP, FTP, SMTP, SOAP, POP and HTTP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

PROFESSIONAL EXPERIENCE

Confidential, Austin, TX

Sr. UNIX/Linux Systems Administrator

Responsibilities:

• Installed/configured/managed/Administrated of all UNIX/LINUX servers, includes the design and selection of relevant hardware to Support the installation/upgrades of Red Hat (5/6), CentOS 5/6.
• Zoning and backup tasks on Cisco switches onto the SAN fabrics.
• Installation of operating system, compliance check, provisioning as per application and database needs.
• Setup, day to day maintenance and support of development, test and production servers.
• Added user profiles, application and database profiles, account setup, and sudoers configuration.
• Installation of various tools including for monitoring, security and setup of print server configuration.
• Worked closely with app DBA's in identifying the system requirements for application and database
• Experience in writing and running VMWare vSphere PowerShell scripts.
• Health monitoring of SAN components, collect data for trending using HTnM
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
• Experience in Developing KORN, BASH, PERL, Python, Ruby, shell scripts to automate cron jobs and system maintenance.
• Made/improved Bash/Perl scripts to compare DB Schemas and use SVN/MySQL to drive/manage DB Schema Migrations.
• Completed multiple small/medium sized businesses switching from Windows based systems to iOS/OS X devices.
• Integration of iOS/OS X into Windows based systems.
• Using the test framework for Zenoss which is a Platform based cloud monitoring software.
• Patch management Content management systems
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Created a Perl script for our Oracle databases when run as root will re-add the database to the HA cluster, start the Database, the Listener and connect the terminal servers and what-nots
• Hardware/Software installs & maintaining critical OS patching & viral definitions.
• Configured the Nagios XI monitoring tool to monitor routers and switches and customized its dashboard.
• Installing, configuring Weblogic 10.3, Apache and integrating them.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.
• Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Setup environments for third party vendor for data cleansing and actively assisted internal and external teams from the planning stages to post cut-over and hand-over phases.

Environment: RHEL 6, Cisco vblock, UCS blades, Oracle, BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Insfrastructure 3.5.

Confidential, Jacksonville, FL

UNIX Administrator

Responsibilities:

• Provided 24 x7 on-call supports in debugging and fixing issues related to Linux, HP-UX.
• Administration of RHEL and AS 4, 5, 6.2 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
• Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Administration, package installation, configuration of Oracle Enterprise Linux 5.4.
• 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.
• Installation of Solaris 9, 10 on Sun Fire and Enterprise server using Jumpstart, custom configuration like installing packages, configuring services.
• Creating Zones, containers, LDOMs on Solaris servers, creating zpools, ZFS file system installing Oracle, Java based applications on them.
• Tech and non-tech refresh of Linux servers which includes new hardware, OS upgrade, application installation, testing.
• Debugging PAM-related problems that occur when the plugin performs authentication.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Modified zenpacks to accommodate the nonstandard OID values
• Upgraded AIX 5.2 to AIX 5.3 using NIM, and perform NIM builds, installs, mksysb backup/restore using NIM
• Installing, configuring Redhat servers via Cobbler, automating scripts, tasks using Cobbler.
• Installation, configuration of MySQL 5.1 which includes creating database tables, updating table entries.
• Creating profiles, manifests for new servers, and pushing them to servers using puppet.
• Creating policies, jobs in HP Opsware, deploying them on linux, windows, solaris servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Responsible for determining the root cause actions that caused members to file a complaint
• Worked on KVM, installing, configuring Linux VMs.
• Installing, configuring Jboss 4.3 on Linux, Unix servers, integrating it with Apache server.
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
• 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.
• Used to built-in connectors for the most popular LDAP directory servers such as Apache Directory Server (ApacheDS), OpenLDAP, OpenLDAP Using Posix Schema, Posix Schema for LDAP, Sun Directory Server Enterprise Edition (DSEE), A generic LDAP directory server
• 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 10g servers.

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485, ML Series, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Insfrastructure 3.5

Confidential

UNIX/Linux Administrator

Responsibilities:

• Responsible for assessment, design and construction of UNIX and LINUX servers.
• Installed ESX and participated in patching of ESX Servers.
• Created Virtual Machines on VMware ESX hosts, and maintenance activities at the VM level and host level. Created policies at host and VM level for compliance with license requirements.
• Successfully completed implementing over 150 Infrastructure projects for various business organizations globally and managed Infrastructure projects using IPM process.
• Build, configured and provisioned servers and installed operating system on about 900 servers involving Suse and Red hat Linux virtual machines, physical servers and AIX LPARs (Logical Partitions).
• Installed various tools/packages for security compliance, performance monitoring and automation etc.
• Participated in Life Cycle Management of servers and coordinated with application teams in migrating applications to new servers and also in planning for LCM activities.
• Worked on oracle database migrations from HP-UX to IBM AIX and application migrations from Sun Solaris to Linux operating environments.
• Set up new NetBackup environment in DMZ layer and upgraded backup infrastructure at remote site including master/media servers and tape library. Installed NetBackup agents on UNIX/Linux servers.
• Built server infrastructure for various Proof of Concept (POC) and Production Pilot projects and coordinated with multiple teams and Vendor to build out a test plan and implementation.
• Participated in physical to virtual conversion (P to V) of Suse and Red hat Linux servers.
• Worked with various GIS groups to evaluate equipment to purchase for enterprise-wide projects.
• Co-ordinated various IPM activities closely with procurement, facilities, and multiple infrastructure teams for projects from inception to completion.
• Veritas Cluster Server 5.0 installation and administration. Installed Maintenance Packs (MP) and Rolling Patches (RP) and configured veritas service groups, resources etc.
• Worked with applications and DBA teams during project construction, readiness and production phases.
• Performed production readiness checklist review and troubleshoot issues on server builds prior to server going into production to proactively identify and eliminate production impact outages and issues.
• Researched new technologies and hardware and presented recommendation of new hardware.
• Assisted junior members with solution design and implementation.
• Implemented various server change control activities as needed for server maintenance and administration, following standard Change Management procedures.
• Took the responsibility of cleaning the assets in CMDB that went out of sync with their actual status.
• Learned and installed windows 2003 and 2008 server environments.
• Build out and implemented server infrastructure and solutions for various enterprise-wide projects including.

Environment: Suse Linux 11/10/9, Red hat 5.3/4.6, AIX 5.3, vSphere 4.0/5.0, Dell PowerEdge R 410/610/710/905/910 , AIX p5, Cisco UCS, Netapp, BladeLogic, NetBackup, Tiger, ITO, Zabbix, Oracle 11g/10g, Web Logic, PHP, Apache.

Confidential

Linux, Solaris System Administrator

Responsibilities:

• Installed and configured hardware and OS on servers, workstations and I/O devices on E4500 environment.
• The system builds from the scratch for UNIX and AIX system.
• Used Veritas Net backup tool for Backup and recovery.
• Responsible for DNS and Configured DNS Servers and Clients and troubleshooting system and DNS issues.
• Package, Patch management, migration, integration & distribution in development, testing, QA, Training, the Production environment. (Testing: UAT, SIT, OAT, Performance testing)
• Used Admin tool for adding and managing new users, groups, software and printers.
• Created disk groups, volumes, volume groups and RAIDs using Veritas Volume Manager.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyze
• Conducted quality analysis to find root cause of the current welding process
• Take lead on updating/retrieving pathology reports utilizing PowerPath software system and/or Clinic Station Electronic Medical Record System.
• Created new slices, mounted new file systems and unmounted file systems.
• Installation, Configuration and Administration of High Availability Veritas Cluster Servers for failover and redundancy purpose.
• Created Korn shell scripts to automate crontab jobs and system maintenance.
• Scheduled crontab jobs for job automation.
• Involved in preparation of functional and system specifications. Estimated Storage requirements for applications.
• Implements a default set of authentication protocols, including Kerberos, NTLM, Transport Layer Security/Secure Sockets Layer (TLS/SSL), and Digest, as part of an extensible architecture.
• Installed of all the required Software, patches, documentation, licensing trouble shooting.
• Set up various user profiles, environment variables/security to ensure smooth operation.
• Responsible for fax link and send mail.
• Used smitty (AIX) tool for Printers, Applications, Processes, Services, Software License Management, Software Installation, Users and Security Management.

Environment: Sun Solaris 2. x/5.7,8, AIX 5.3/4.3.2, Windows NT 4.0, Sun Enterprise 4500, Sun Enterprise 250, IBM RS/6000, Motorola Machine, Pentium PCs, Genicom Printers and Laser Jet Printers, Veritas volume manager, VCS, VERITAS Net Backup 4.0.