PROFESSIONAL SUMMARY:

• Eight plus years of experience specialized in System Administration working on Redhat Linux, Solaris, SUSE Linux, AIX, Cent OS, HP - UX 10.2x, 11.3x. Oracle Enterprise Linux and Windows environments.
• Involved in installation, configuration and administration of RHEL 3.x/4.x/5.x Servers (HP - UX, Red Hat Linux, Solaris SUSE, and AIX). 
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning.
• Excellent experience and knowledge with designing installing and implementing VMwareESX server, VMware virtual center, setting up V-Motion, HA, DRS. 
• Installation and configuration of Oracle RAC 11g on Solaris, AIX and Red Hat cluster nodes. 
• Proficient in shell scripting (Ksh/Csh/bash/Sed/Awk), PERL, Java Scripts for Oracle and Java Applications and XML. 
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA. 
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM). 
• Extensive working knowledge of mainframe Tools like TSO/ISPF, File AID, Xpeditor, Abend AID, Syncsort, NDM, SPUFI, QMF, SSO and FTP. 
• Experience in administering, Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux. 
• Experience in Installing, upgrading and configuring Red Hat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation. 
• Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation. 
• Worked with Database administrators to tune kernel for Oracle installations. 
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), HP MC Service Guard, Veritas Net Backup, Veritas Clustering with SAN, NAS environment. 
• Experience in installing, configuring and implementing the RAID technologies using various tools like LVM, VxVM and Solaris volume manager. 
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux. 
• Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack & reviewing connectivity issue regarding security problem. 
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, ftp, remote access, security management and Security trouble shooting skills. 
• Experience on Webservers such as Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers. 
• Experience in administering VMware Infrastructure Client 3.5 and VSphere 4.0. 
• Experience in Installation of Oracle and MYSQL. 
• Experience in writing shell scripts to automate the administrative tasks and management using cron and at. 
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts. 
• Team player with good management, analytical, communication and interpersonal skills. 
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems. 
• Experience in Sun Solaris 10(Creation of Zones, Service Management Facilities, Virtualization, Container based. 
• Experience working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays. 
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570. 
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

TECHNICAL SKILLS :

Operating Systems: RHEL 3/4/5/6, Solaris Release, IBM-AIX 5.X, HP-UX, Windows 98, Windows 2000, Windows 07,8.1 and NT. 

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5, HP 9000, HP Net Server L series. 

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, VeritasNetBackup 6.0, MS-Office/MS-Project. 

Web/ Application Server: Tomcat, Apache DB2, Oracle. 

Network Protocols: TCP/IP, UDP, LAN, WAN, NFS, LDAP, DNS, SAN, DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump. 

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

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

Virtualization: VMware and Vsphere, and VIO,

PROFESSIONAL EXPEREINCE:

Unix/Linux Administrator

Confidential, Hopkins, MN

Responsibilities:

• Administration of RHEL and AS 4, 5, 6 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 Vsphere 4.0 and migrating servers between ESX hosts. 
• Installing Red Hat Linux using kickstart and applying security polices for hardening the server based on the company policies. 
• Installing and upgrading HPUX on HP PA-RISC and Itanium Servers 5 on HP DL 380 G3, 4 and 5 & Dell Power Edge servers. 
• 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. 
• Worked and performed data-center operations including rack mounting, cabling. 
• Worked on HP-UX servers in an MC Service Guard high availability cluster. 
• Experience working with HP LVM, creating physical, volume groups, logical volumes both physical and SAN disks. 
• Installation and deployment of a Red Hat Network Satellite Server 5.4.1. 
• Installed and configured GNUPG to encrypt file and ftp to remote ftp server. 
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list. 
• Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc. 
• Build new Virtual machine and physical server. 
• Managing the VMWare ESX and ESXi server 5.5, 5.1, 4.0.0 and 3.5.0 based on requirement.
• Installing and Managing Virtual Center 5.5. Upgrading from VMWare ESX server from 3.5.0, 4.0.0, and 5.0 in environment. 
• Implementation of backup solutions using VeritasNetBackup 4.5, 5 and 6.5 and HP Data Protector. 
• Install and configure the hardware agents on the ESX servers for Hardware monitoring and alerts (SNMP & Open Manager). 
• Managing package install/upgrades using YUM and RPM. 
• 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. 
• Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes. 
• Gathering requirements from customers and business partners and design, implement and provide solutions in building the environment. 
• Installing and configuring Apache and supporting them on Linux production servers. 
• Worked on E-commerce based application products related to Internet marketing, credit card transactions, inventory management. 
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP. 
• 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. 
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostatetc) and tuned I/O, memory, etc. 
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing. 
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes. 
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers). 
• 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. 
• Administered SMTP and DNS infrastructure ( Sendmail 8.14 and BIND SPLIT DNS version 9.6.1) 
• Excellent documentation skills and instrumental in creating runbooks, presentations and infrastructure documentation.

 Environment: Red Hat Linux 5/6, KVM, Acronis, VMWare, ESX, Solaris, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Disk Suite, POP, Veritas Volume Manager, LDAP, DNS, NIS, NIS +, SNMP, Shell scripting, SENDMAIL, Apache, Puppet, WebSphere, Sun and Veritas Clusters.

Linux Administrator

Confidential, Hartford CT

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux 6.x, 5.x,
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• Used and worked on Kick Start configuration to handle issuances and kernel configurations.
• SWAP box configuration, Implementation of disaster backup and recovery.
• Performance Management & Tuning of RHEL.
• Created, and Installation of VIO Server and configured several VIO client LPARS on power6 (p550 and 570) models.
• Installed and configured SAMBA server for windows and Linux connectivity.
• Implemented NIS and NFS for administrative and project requirements.
• Migrated Unix applications to Linux platform (ETL Informatica, Oracle, DB2, AD/LDAP etc.)
• Worked with several teams and guided 1st Level and 2nd Level teams to handle Incidents related to OS, Applications and Hardware.
• Discussed and documented Internal WIKI pages about the SLAs, OLAs and other ITIL best practices used to address the tickets in a timely manner.
• Excellent understanding of HP Service Manager and ability to create/modify/edit Interaction (SD-Service/Request), RFCs, Change Records, Incidents, Problem Record, CAB/eCAB, Test and Production Implementation Readiness.
• Helped the team in migration activities and actively involved in Pre-Assessment Phase, Assessment Phase, Build Phase, Validation Phase, UAT-1 (by Application Areas), Implementation Readiness (Change Records, Change Windows, Impact analysis), Migration, Cut-Over/Night-of-Implementation, UAT-2 (Final Validation by Application Areas) followed by Final Transition from Project to Service.
• Installed and Configured Web and investigate the configuration changes in the production environment.
• Responsible for multicasting of various components as a system administrator.
• Worked closely with DBA team to ensure optimal performance of databases, and maintain development applications and databases
• Tuning the kernel parameters based on the application/database requirement.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Configure Crontab entries and update automation scripts.
• Knowledge in Adobe, Hyperion, development servers.
• Upgrading RHEL 5.0 to RHEL 5.9/6.4 using live upgrade and manual upgrade.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Work with security team to modifying application users’ password policies, group policy, UID and GID assignment policies.
• Monitored the performance of the system using top, sar, ps, prstat, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices,, memory usage and network traffic.
• Troubleshoot network connectivity used ping, netstat, ifconfig, and trace route commands. Login to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used ftp, scp, and rsync commands.
• Experience managing various file systems using LVM and also configured filesystems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• Linux technical support and prepared technical documentation for check in verification.
• Regular backing up of critical data and restoring backed up data. Worked in solving tickets issued on day to day activities and problems related to development and test servers.

Environment: Red Hat Linux 5/6, VMware ESX 5.x, Weblogic 12/11, Oracle 10g, VMWARE, NFS, SAN, NAS, ITIL.

Linux/Unix Administrator

Confidential, West Palm Beach, FL

Responsibilities 

• Installation and administration of RHEL 4.0/5.0/6.0 and Cent OS 5. 
• Installation, configuration, administration of Solaris9, 10 on SPARC based servers using Jumpstart, worked on T. M series servers. 
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server. 
• Remote system administration using tools like SSH, Telnet, and Rlogin. 
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades. 
• Applied appropriate support packages/patches to maintain system integrity. 
• Performed capacity analysis, monitored and controlled disk space usage on systems. 
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems. 
• Adding servers to domain and managing the groups and user in AD, installing and configuring send mail. 
• Creating profiles manifests for new servers, and pushing them to servers using puppet. 
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation scripts. 
• Creating virtual machines using Xen and deploying OS, managing hardware. 
• Creating, installing, WebLogic Application servers, deploying WAR, JAR files on them installed on both Linux, Solaris servers. 
• Worked with project manager and auditing teams to implement PCI, SOX compliance. 
• Jumpstarting Solaris 9, 10 on Sun servers, configuring servers. Configured/Maintained Zones, LDOMs, ZFS file system Sun Solaris 10 Servers. 
• Management and monitoring of various services using Service Management Facility and Service Administration. 
• Installing, configuring VeritasNetBackup 6.5 on Linux, solaris servers, and creating backup polices. 
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g 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. 
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy. 
• Fine tuning of Servers and configuring networks for optimum performance. 
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals. 
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy. 
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers. 
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user, and group quota. 
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring. 
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes. 

 Environment: Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, Sun Fire V440/880, DMX 3 & DMX4, Site minder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Systems Administrator

Confidential, Atlanta, GA

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers. 
• Involved in Building and configuring Solaris 8/9/10 using Jumpstart server and Red Hat Linux Servers using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging. 
• Incident management for Unix Servers (Solaris, Linux). 
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS. 
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers. 
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools. 
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server. 
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance. 
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc. 
• Extensive use of VeritasVolume Manager for Disk management, file system management on Sun Solaris environment. 
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones. 
• Installation and configuration VeritasNetBackup on Sun Severs and performing Backup using Veritas Net Backup. 
• Extensive use of Korn shell, Bash for scripting. 
• Expertise in Linux backup/restore with tar including disk partitioning and formatting. 
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment. 
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems. 
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance. 
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards. 
• Involved in migration of projects from one flavor to another one. 
• Involved in development, user acceptance, and performance testing, production & disaster recovery server. 

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, VeritasNetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, AN Switches, Apache, Tomcat WebSphere, Weblogic application server.