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Linux/unix Administrator Resume

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Columbus, OH


  • Having 8 years of Strong Experience in LINUX/UNIX Administration, Shell Scripting wif expertise in Red - hat Linux 4, 5, 6 and 7, Solaris 8, 9 and 10. HP-UX 11.me, AIX 5.1, 5.3 and 6.1, Windows 2003, WebLogic 10.x, WebSphere JAVA, J2EE Applications and SQL.Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
  • Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked wif systems support team to define, architect and maintain highly available production systems.
  • Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Unix Servers.
  • Experience in implementing and monitoring High Availability environment using Veritas Cluster Server, Sun Cluster, Redhat Cluster (RHCS), HP Service Guard and HACMP.
  • Configured and used Jumpstart, Kickstart, Ignite and NIM to install OS.
  • Worked on Solaris 10 Container Technology. Created and maintained local zones.
  • Managed resources for zones using Solaris 10 container technology.
  • Solaris Live Update Technology associated wif an operating system upgrade or maintenance.
  • Good noledge on Meta Data concepts
  • Strong experience in VERITAS Clusters in supporting high availability mission critical servers.
  • Experienced wif teh installation, configuration and volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager).
  • Strong Knowledge on installing, upgrading and Configuring LAMP stack (Linux, Apache, My SQL, PHP)
  • Backup management and recovery policies using VERITAS Net-Backup.
  • Good noledge on offering cloud computing services using AWS
  • Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
  • Good noledge on PCI and SOX
  • Experienced in implementing Splunk, Puppet, Chef, and Git
  • Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux/AIX, HP-UX (ITANIUM and PA-RISC) and SVM, GFS (global file system) and ZFS in Solaris.
  • Good hands on experience in managing large group of servers using OpenStack
  • Experience in VMware Installed and monitored Virtual environments wif ESX 3.x servers and Virtual Center 2.X
  • Experienced in working wif Storage Area Network (SAN), EMC CLARiiON CX, EMC Symmetrix DMX, EMC MirrorView, HP storage and Hitachi data storage.
  • Strong experience in installing and configuring Apache Tomcat
  • Expert in Installation, configuration of Patches and Packages.
  • Proficient in Installation, Configuration, Support & Maintenance of various Sun Sparc Enterprise hardware’s and RedHat5.x Linux Servers located at Remote Locations. Deployment of Application Software ( E-Com/J2EE, B2B, B2C, Oracle, Sql Server, ERP(SAP, Oracle Apps, People soft) )
  • Experience in providing day-to-day user administration like adding and deleting users and managing users queries.
  • Installing and Configuring system monitoring tools such as Nagios
  • Excellent in System performance tuning Configuration
  • Sound understanding of IT Infrastructure Administration wif project management skills.
  • Providing 24/7 technical support to Production environments
  • Experience in configuration and testing Disaster Recovery Site.
  • Experience in writing Shell/Perl Scripts.
  • Technical professional wif management skills, excellent business understanding and strong communication skills.
  • Good at Project management & Configuration management


Hardware: SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K Series Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, ProLiant DL360 gen9 SAN(EMC, Hitachi), NAS (Netapp)

O / S: Solaris 10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM AIX (5.1, 5.3), Red Hat Linux (RHEL 3/4/5), Windows NT /2003/vista

Naming Services: DNS, NIS, and NIS+

Backup Management: Veritas Netbackup 4.x/5.x/6.x, Ufsdump, ufsrestore, tar, dd, cpio

Script Languages: Shell scripts, PERL, Python, Ruby

Web Technologies: Apache 2.x/3.x, IPLANET 4.x/5.x, WEBLOGIC 8, Websphere 4.0/5.0

ThirdParty Software: VERITAS Volume Manager, LVM, LDAP, SSH

Cluster: Veritas Cluster Server (VCS), Sun Cluster, Redhat Cluster (RHCS), HP Service Guard, AIX HACMP

RDBMS: Oracle, MS SQL Server



Confidential, COLUMBUS, OH

Linux/Unix Administrator


  • Installation, configuration, administration of RHEL 5, 6, 7 and Solaris 9, 10 using Kickstart, Jumpstart, custom configuration like package management, volume management of servers.
  • Applied appropriate support packages/patches to maintain system integrity.
  • Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
  • Creating, installing and configuring Zones, LDOMs in Sun Solaris 10.
  • Creating virtual machines, cloning, creating templates, adding storage, installing Redhat, performing vmotion, adding ESX hosts on Vsphere 4.0.
  • Creating file system, exporting, importing file systems, tuning, growing, shrinking using Veritas File system 5.x.
  • Implemented automation tools such as Spelunk, Puppet, Chef, and Devops.
  • Experience wif RHEL 7, Puppet, and Chef Configuration management tool.
  • Troubleshooting and administering High Availability using VERITAS Cluster Server (VCS) and Redhat Cluster Server (RHCS) on various business critical database & application production servers.
  • Monitored Linux server for CPU Utilization, Memory Utilization, and Disk Utilization for performance monitoring.
  • Managing and configuring large group of servers using OpenStack
  • Troubleshooting and configuring NAS and NFS mount points.
  • 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.
  • Creating managing volumes using LVM.
  • Administration for multiple sun hardware, this involves creating domains, adding/deleting system components.
  • Installing, configuring Veritas Netbackup 6.5 on Solaris, Redhat servers, creating polices, scheduling jobs.
  • Installed Web Logic 10.3 and configured Domains, Admin and managed servers for Applications to be deployed.
  • Providing Secure Global Infrastructure using AWS
  • Basic scripting skills wif experience in Bash, Python, and Ruby
  • Extensively used Active Directory Server Console for managing teh entries.
  • Installing, configuring Puppet and Chef on linux, unix clients, creating new profiles, running checks, modifying scripts, pushing changes to teh clients.
  • Involved installing and managing different automation and monitoring tools on Red hat Linux like Nagios, bash and python scripts.
  • Setting up LAMP server and updating teh LAMP stack
  • Monitoring system resources, logs, disk usage, scheduling backups and restore.
  • Configuring SUDO and granting root permission to users for performing certain activities.
  • Extensively worked on hard disk mirroring and stripe wif parity using RAID controllers.
  • Involved in Server sizing and identifying, recommending optimal server hardware based on user requirements.
  • Worked on PCI and SOX audit requirements
  • Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
  • Adding servers to teh domain and monitoring them using spectrum, sitescope, cacti.

Environment: RHEL, Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris, AIX, SAN (Netapp), OpenStack, Blade Logic, Veritas Cluster Server, Nagios, Redhat Cluster Server (RHCS), Python, Chef, Puppet, PHP, Tomcat, AWS, Windows 2003 server, Shell programming, Jboss, JDK, VMware Virtual Client, VMware Infrastructure.

Confidential, Tampa, FL

Linux/Unix Administrator


  • Installation, Configuration, & Upgradeof Linux (RHEL 5, 6), Solaris 8.0, 9.0.
  • Installation and configuration of Red Hat Enterprise Linux and Windows Virtual machines using PXE Boot, for teh disaster recovery project.
  • Configured Solaris Jumpstart Server. Maintained Server 6.0. Backup data of Servers usingVERITAS Net Backup. Maintained Security of teh Solaris Servers.
  • Configuration of VERITAS Cluster Server, Redhat Cluster Server, Service Guard from teh scratch and maintained service group/packages for failover and redundancy purpose.
  • Installation and configuration of RHEL servers using kickstart installation.
  • Installation & configuration ofVMware ESX 3.5Servers,VMware Virtual Infrastructure Server,VMware License Server and VCB Setup.
  • Install and configured management systems, such as Puppet, and chef.
  • Implemented Bash, Perl, Python scripting.
  • Installing ESX operating systems on teh physical servers forVMware virtualization.
  • Adding Data stores, creating clusters, addingESX hoststo teh clusters in a Data center inVCenter Server.
  • Creating easy access to data using metadata concepts.
  • Create Guest OS RedHat Enterprise Linux and make readymade Gloden Image/Template using VMware Virtual Infrastructure Client.
  • Enabling HA, DRS EVC, for teh Clusters in theVCenter Server.Creating Host profiles and applying teh host profiles to theESX hosts.
  • Setting up installable image of AIX operating system.
  • Migrate Guest OS and clusters fromVMware ESX 3.0.0 to VMware ESX 3.5.
  • Setup and configured Dell MD3000 SANs to work wif VMware ESX servers.
  • Perform security patching of Linux servers
  • Established network security using Linux Firewall and troubleshoot problems relating toboot loaders (GRUB, LILO).
  • Installing LAMP software bundle on teh Linux operating systems
  • Worked onSolaris 10 container technology, configured separate zones for various applications.
  • Involved in Implementing and Administrating enterprise level data backup and recovery.
  • Designed and Implemented Backup solution for teh Network.
  • Managed teh entire infrastructure wifpuppetby setting uppuppet master and slaves.
  • Enterprise resource planning includedITIL processes, such asConfiguration Management, Change Management, Problem management and Incident Management
  • Installed and configured file and Application servers running on Sun servers
  • Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, FTP
  • Implementation ofRAID 0/1/5for creation of logical volumes usingVERITAS Volume Managerin SAN Storage Area Environment.
  • Installing and monitoring system using Nagios
  • UsingKorn shell, Perl and CVS (Harvest), Hudson, Maven Version Control to automate deployment of J2EE applications to Mid-Tier platforms.
  • Usedbash, awk,andsedto automate most of teh daily activities like log monitoring, log rotation and purging, proactive systems monitoring including disk error detection.
  • Managed Network troubleshooting applicationsTCP/IPincluding Ethernet, IP addressing & Sub netting, routing
  • Worked on creating user accounts, user administration, local and global groups on Solaris platform
  • Created User Accounts and Network Shares. Configured SUN Workstations as Domain Clients.
  • AdministratedNFS, NIS, DHCP and DNSSamba servicesrunning on Sun Solaris andRedHat Linux.
  • Worked wif Storage team to configure EMC SAN, NAS and iSCSI configuration.
  • Managed Users forSolaris,RHEL and Linux Serversand assigned rights to access network resources.

Environment: Linux, Windows (NT/2000 Servers), Blade Logic, HACMP, UNIX, Solaris, Tivoli SM, LPAR, Python, Chef, Puppet, Tomcat, Nagios, PHP, AWS, Veritas, Redhat Cluster Server (RHCS), Netbackup, Scripting (korn).

Confidential, Dallas, TX

Linux/Unix Administrator


  • Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
  • Installation, Maintenance, Administration and troubleshooting of OEL, Linux, Sun Solaris, AIX, HP-UX systems.
  • Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
  • As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
  • Installation and configured Solaris 10 wif Zones, Containers and Ldoms.
  • Extensively worked on hard disk mirroring and stripe wif parity using RAID controllers.
  • Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
  • Maintaining high availability and load balancing using LAMP stack involving multiple web and data base servers
  • Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System, Veritas Cluster Server and Oracle SF RAC.
  • Installed teh Operating System on Solaris and Linux servers and Blades over teh network.
  • Built servers according to standards specified as per individual applications
  • Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts.
  • Worked on installing, configuring splunk on linux, solaris servers, to enable log, port monitoring of servers, applications, escalating issues to teh particular teams.
  • Installing, configuring puppet, and on linux, unix clients, pushing profiles to new servers, running checks, modifying scripts, pushing changes to teh clients.
  • Set up Linux servers for iSCSI LUN boot instead of using local hard disks
  • Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks
  • Configured Sun servers M4000 and M5000 for operational readiness upon OS installation
  • Set up Linux servers for LAMP implementations and readiness
  • Installing and configuring system monitoring tools Nagios
  • Created File systems from local storage as well as NFS partitions for application portability
  • Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
  • Creating, cloning virtual machines on VMware 3.5, 4.0, installed ESX hosts, performance monitoring of virtual machines, taking vmware snap-shots, recovery, creating vswitches,
  • Installed and verified that all AIX/Linux patches or updates are applied to teh servers.
  • Preparing servers for Oracle RAC installation which includes tuning teh kernel, agent installation, adding NAS storage.
  • Worked on resolving production issues and documenting Root Cause Analysis and updating teh tickets using BMC Remedy.
  • Designing Firewall rules for new servers to enable communication wif application, Oracle 10g servers.
  • Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned me/O, memory, etc.
  • Coordinated wif teh Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).
  • Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.

Environment: RHEL 5.x,6.x, Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN(Netapp), BladeLogic, Veritas Cluster, Redhat Cluster Server (RHCS), Server 5.0, Windows 2003 server, Nagios, PHP, AWS, Shell programming, Tomcat, Jboss 4.2, JDK 1.5,1.6, VMware Insfrastructure 3.5.

Confidential, Richardson, TX

Linux/Unix Administrator


  • Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
  • Configured kickstart server and updating/applying patches to teh 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.
  • Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
  • Automation of jobs through autosys.
  • Installation of packages, patch management, volume managment on Suse servers using YaST.
  • 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.
  • Log, port monitoring using Splunk, directing logs to a central host.
  • Adding servers to domain and managing teh groups and user in AD, installing and configuring sendmail.
  • Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
  • Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
  • Worked wif project manager and auditing teams to implement PCI compliance.
  • Worked on F5 load balancer to create rules for creating VIP, checking configurations.
  • Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
  • Installed and configured Virtual me/O Server V1.3.01 wif fixpack8.1.
  • Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application servers.
  • Management and monitoring of various services using Service Management Facility and Service Administration.
  • Designing Firewall rules for new servers to enable communication wif 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 wif SAN Team for storage allocation and Disk Dynamic Multi path.
  • Fine tuning of Servers and configuring networks for optimum performance.
  • Organized various meetings wif teams as mentioned above for tracking their requirements as inputs to get this done and designed teh 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.
  • As a member of teh team, monitored teh VERITAS Cluster Server 4.1 in SAN Environment.

Environment: Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, PHP, AWS, Nagios, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Apache, Tomcat, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.


Systems Administrator


  • Installation, Configuration, Up gradation and administration of Sun Solaris, RedHat Linux.
  • User account management and support.
  • Jumpstart &Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
  • Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
  • Responsible for configuring and managing Squid server in Linux.
  • Configuration and Administration of NIS environment.
  • Managing file systems and disk management using Solstice Disksuite.
  • Involved in Installing and configuring of NFS.
  • Worked on Solaris volume manager to create file systems as per user and database requirements.
  • Trouble shooting teh system and end user issues.
  • Responsible for configuring real time backup of web servers.
  • Log file was managed for troubleshooting and probable errors.
  • Responsible for reviewing all open tickets, resolve and close any existing tickets.
  • Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.

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