SUMMARY

• Having 7+years of IT industry experience as a System Administrator on Red Hat Linux, HP - UX,AIX,Solaris and Windows environment.
• Had 6+ years of experience in administration, installation and configurations of Apache web servers
• Experience in Installation,Configuration, Implementation, Crash Recovery, Maintenance, Tuning, Security Setup & troubleshooting ofRed Hat Linux, HPUX & Solaris.
• Working experienceonRed hatLinux AS and ES4.x, 5.x,6.x,HP-UX 10.x, 11.x & Solaris 8, 9&10, OEL.
• Expertise inInstalling,ConfiguringandTrouble-ShootingApplication Servers likeIBM Web sphere 3.5/4.0/5.0,BEA Web logicand Web Servers likeIBM HTTPWeb Server,iPlanet Web Server,ApacheWeb Server onLinux and Windows 9X/200X.
• Managing datacenters VPS, solusVM, cpanel/WHM etc
• Good knowledge in TCP/IP, VPN, IPSec, firewalls, encryption, authentication protocols, network sniffers, digital certificates, ability to handle CISCO routers and switches and IPS/IDS
• Coupling multiple broadband internet lines for office application
• Knowledge in maintaining and implementing NIS, NFS, Samba
• Experience in configuring & maintaining Apache/Tomcat
• Knowledge of installing various open source packages
• Involved in installation, migration and implementation on Net App systems
• Created Aggregates, Volumes, Qtrees and setup quotas on NetApp filers.
• Hands on experience in DataOntap6.5, 7.x series, Data Fabric manager, Snapshot, OSSV, SnapDrive, SyncMirror, Snapvault in a clustered Environment
• Experience in Installation, Configuration and Troubleshooting of various web server issues including IBM HTTP Server, Apache Web Server 2.x/1.x, Tomcat 5.x/4.x/3.x.
• Efficiency in installing, configuring, and implementing of RAID0, RAID 1, and RAID 5 levels using Logical Volume Manager, VERITAS Volume Manager and Solaris Volume Manager.
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy.
• Experience in installation and configuration of VERITAS Cluster Server.
• File system-organization, mounting, file types, permissions etc.
• Experience withbackup technologies like Tivoli Storage Manager 5.x and VERITAS Net backup 3.x, 4.x, 6.5.
• Experienced in implementing Splunk, Puppet, Docker, Chef, Git and Jenkins
• Installing, configuring puppet on Linux, Unix clients, creating new profiles, running checks, modifying scripts, pushing changes to the clients.
• Proficient in configuring the Data Communication Devices such as Routers, Switches, Hubs, Terminal servers and Troubleshooting LAN and First Level WAN Related Problems.
• Experience with high-end enterprise serversSun T2000, 5240, M5000, 6800,4800, HPProLiantDL 380, 385, 580,IBM HS22, HS12, LS22 BladecenterServers.
• Implementation of backup solutions usingVERITASNetbackup4.5, 6.5.
• Experience in Shell scripting usingSH,KSH,bashandPERL
• Experiencein System performance tuning Configuration.
• A good team player with strong communication skills and an inquisitive mind to learn more.

TECHNICAL SKILLS

Operating systems: Solaris (8,9,10), Red Hat(5,6,7),HP-UX(11.0,11.11,11.21), Suse(10,11) CentOS, Ubuntu, AIX(5.1,5.3), Microsoft Windows Server 2003/2008/2012.

Virtualization: Citrix XenApp 5, VMware vCenter 4 & 5, VCE Vblock, VM ware ESXi, VMware vCloud Director 5.5. windows Hyper V hypervisor, Solaris zones.

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, SAN(EMC, Hitachi), NAS (Netapp)

E-Mail: Exchange 2003/2007, Sendmail, Postfix, Trend Micro Messaging Security Suite, Blackberry Enterprise Server 5, McAfee IronMail anti-virus/anti-spam servers, Symantec Anti-Virus SMTP Gateway.

Services: Microsoft DNS/DHCP/IIS/Active Directory/Print servers, Squid Proxy servers, BIND, Apache web server.

Languages: Shell scripts, Perl, Python, VB script, C, C++

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

Tools: Git Hub, Ansible, Chef, Puppet

Cloud Technologies: Open stack, AWS

Backup: CA Archserve Backup r16, BakBone/NetVault backup systems.Other: Checkpoint Firewall/VPN, Terminal servers.

PROFESSIONAL EXPERIENCE

Confidential, O’Fallon, MO

Sr.Linux Administrator

Responsibilities:

• Building, Installing, Configuring servers from scratch with OS of RedHat Linux
• Installation, Maintenance, Administration and troubleshooting of OEL, Linux, Sun Solaris, AIX, HP-UX systems.
• Configuration and Administration ofVERITASVolume Manager and High Availability
• Installing Patches to the current version, Packages related to hardware, andsystem customization
• Configuration ofMySQL, Oracle PL/SQLdatabase.
• Installation, Configuration, & Deployement of oracle E-Bussiness suite 11i/R12.
• Experience virtualizing PhysicalRed hatLinuxservers by migrating them to VM's on VMWare ESX and V-sphere.
• Configuration and administrtaion of EMC PowerPath software for redundant path failover and recovery.
• Experience performing migrations of Applications from different UNIX servers like Solaris, HPUX to Red Hat Linux.
• Experience installingLinuxservers using Kickstart and Cloning on ESX servers.
• ConfiguredVolumegroups and logical volumes, extended logical volumes for file system growth needs usingRed HatLogical Volume Manager (LVM)commands.
• Experience supporting applications installation and configurationslike Apache, Iplanet, Weblogic, Websphere and Databases like Oracle, Sybase &DB2.
• Ran QC reports with HP QC/QTP tool and remediated issues on the servers to pass the QA.
• Conducted performance testing of apache and Tomcat management services.
• Experience configuringSatellite and Repositoryservers to perform RPM installations across the environment.
• Experience migrations and Virtualization from P2P & P2V.
• Configuration and Administration ofVERITASCluster Server (VCS),fail over test of VCS group and adding/modifying VCS resources.
• SAN storage experience with a focus in Net App, Hitachi data storage HP 3PAR storage, and EMC (Symmetric) from a host level.
• Creation ofVolumes andfile systemson SAN disksusingRedhat LVMandVERITASVolume Manager.
• Generating SSH RSA keys for password less authentication between trusted servers.
• Experience working in SAN environment configuringmultipathing using EMC power path andLinuxnative multipathingusing Device mapper.
• Managed the entire infrastructure withpuppetby setting uppuppet master and slaves.
• Extensiveexperience working withHP hardware likesHP Proliantservers DL 360, 380 &580 G4,G5 & G6 servers and also Blade Centers like C3000 & C7000.
• Installing, configuring, and maintaining Samba Web Servers, WebLogic and WebSphere Application Servers, and Oracle, SQL and Sybase database technologies.
• Activities includeuser administration, startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation usingshell scripting(BASH, KSH) and Perl forRed Hat Linuxsystems
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
• Installation and support of various applications like Weblogic server 9.x, JBoss 4.x, Apache Tomcat 6.x,and Oracle 9i, 10g, in RHEL 5
• Data Migrations between EMC, IBM and Power-path Disks.
• Installing and tuning the KVM's on Hp-DL proliant Servers using Kick Start and ISO's.
• Troubleshoot hardware, software and Operating system related errors on Linux
• ImplementingSoftwareand HardwareRAIDatHW and OE level.
• Configuring Virtual Machines underVMware ESX 4.0servers to installLinuxguests.
• Installation and maintenance of Adobe Q5 web content management system.
• Performance monitoring and Tuningusingtop, prstat, sar, vmstat, ps, iostat etc.
• Experience working with configuration management software like Puppet and involved in managingpuppet master server.
• Planning and implementation of migrating production data from VNX 5700 to VBlock 700.
• Experience working with Oracle RAC, PL/SQL.
• Participated in Oracle Exadata Database Machine Installation and configuration mode.
• Good hands on experience with shellscripting.
• Experience with working on a network that is hosted at a datacenter managedby a 3rdparty vendor.
• I have worked with LAMP(Linux, Apache, My-SQL (database), Perl and Python)and CDN.
• Worked ontools like TCP Dump/Wire shark

Environment: RHELLinux5.x,AIX, OEL, SAN, NAS, VERITAS Volume Manager, VCS, VERITAS Netbackup,VMware ESX, SAN, NFS, Shell Scripting, chef, puppet, Weblogic 8.1/9.0,Websphere,Tomcat 3.x, 4.x, 5.x, Apache Server 1.x, 2.x, Korn, Bash, JDK1.5,1.6, Jboss 4.2, VM Ware Infrastructure 3.5.

Confidential, Bluffton, SC

Sr.Linux/Unix administrator

Responsibilities:

• Worked as L2/L3operations SA in an organization consisting of 20000 physical serversglobally, runningRedhatLinuxoperating System.
• Installation ofRHELLinux5/6operatingsystemsonHP& UCS HW.
• InstallationRedhat & SUSELinux on Cisco and HPHWusing Kickstart.
• Rebuild of the both Linux(RedHat/SUSE/Ubuntu)OSwhen the server iscrashed, usingthe established profile settings.
• Effective Use of HACMP Utilities to Manage Resource Groups like Fail Over, Offline, Audit,Online and Rsync process.
• Performance monitoring, tuning and troubleshooting Weblogic, JBoss, Tomcat and Apache server instances.
• Install Sendmail and configure sendmail.mc, sendmail.cf.
• Involved inChange Control Managementanddocumentation of the procedures.
• Annual Participation in Disaster Recovery (DR) and power down Activities.
• Experience in troubleshooting samba related issues.
• Performed disk administration usingLVM, Linux Volume Manager(LVM),Solaris Volume Manager(SVM)and Veritas Volume Manager 4.x/5.x.
• InstalledVMWareESX4.1 toperformvirtualizationof RHEL/SUSE/OELservers.
• Experience Working withEMCstorage arrayslike Clariionsand VMAXand settingup SRDFandfor DR purpose on Production DB and Business Critical Applications.
• Performance monitoring onLinuxservers usingiostat, netstat, vmstat, sar, top & prstat.
• Have experience in troubleshootingTSMrelatedbackup issues.
• Installed and configured database likeMySQL, Mongoserver.
• Installation and support of various applications like Weblogic server 9.x, JBoss 4.x, Apache Tomcat 6.x,and Oracle 9i, 10g, in RHEL 5
• AdministeredNet backup 5.1Performedbackups on TapelibraryTL2000, TL400
• Workedon applicationlikeJenkinstool for testing builds.
• ConfigureRAIDonMD3000DiskArray.usedmdadmcommands
• UpdatedfirmwareonHBA cardslike qlogicandinstalledit on PE Dell R410,R610 servers
• InstalledNIC cardandupgraded firmwareon NETSCREEN Securityappliances
• Worked on POSTFIX mail server.
• Installed and configuredDHCP, DNS, NFS
• Implementation of High Availability solutions with Oracle 11g/10g RAC, physical and logical standby Databases.
• Configured IP tables onLinuxservers.
• Worked on Web servers which include Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x
• Experience in installing with ZFS file system.
• Worked on monitoring tools likeMRTG graphs, BB big brother
• Workedonvolume management usingVeritas Volume Manager 4.0
• Installed and configuredPHP
• Configuring the SAP system server.
• Installing the SAP Client when SAP runs on .
• Worked on puppet, scheduling changes, profile creation, pushing the changes across all the servers.
• Creating, installing and configuring Zones, LDOMs in Sun Solaris 10.
• Installing, configuring puppet on Linux, Unix clients, pushing profiles to new servers, running checks, modifying scripts, pushing changes to the clients.
• Established network security using Linux Firewall and troubleshoot problems relating to loaders (GRUB, LILO).
• Setup,operate and maintain company-wide services such as mail (UW-IMAPD, sendmail) DNS(BIND v8), WWW Apache / SSL, DHCP and SAMBA.
• Installed and configured HPC cluster with SUSE Linux server and configured LSF.
• Troubleshooting onSun Java System Web Server 6.0andApache1.3.xweb server on Solaris with experience in installingSSLcertificates.
• PerformedPackage administration on Linux usingrpm,yumand Satellite server.
• Patch and package administrationforinstallation of patchesas per the company policy and installation of packaged application.
• Planning and implementation of migrating production data from VNX 5700 to VBlock 700
• User, Groupmanagement for all the UNIX servers.
• Modifying/ Writing scriptsinBashandKornshell for optimizing day to day administration
• Editingcrontabin post - installation of Unix servers
• Design and build the core converged datacenter infrastructure using Vblock and VMware services to support the product environment.
• Wrote Unix shell scripts for automated installations, to extract logs using C, Bash, Perl, and python.
• Configured ILO console to manage HP servers remotely.
• Experience in HP-UX Logical Volume manager (LVM) and HP-UX file system such as JFS and HFS.
• Experience in troubleshooting and tuning using D Trace.
• Did Inventory management, Server decommissioning, new server adding to list.
• Automated patching of Solaris, Linux, AIX and HP-UX servers using Korn shell and python scripting.
• Worked on installing, configuring Splunk on Linux, Solaris servers, to enable log, port monitoring of servers, applications, escalating issues to the particular teams.

Environment: Redhat EL 3.x, 4.x, Centos 5, Solaris10, HP-UX,Apache, PHP, Veritas Volume Manager 4.1, 5, DNS, NFS, PE DELL R410,R610,R910,1650,1950,860, Sun T2000, SunFire v890,E2900, Disk Arrays MD3000, TL2000,TL4000.EMC Ax-4,Clarion,VNX

Confidential, Milpitas, CA

UNIX/Linux Administrator

Responsibilities:

• Installation ofRedhat, Ubuntuand SUSELinuxon HP and Dell Rack and Blade servers.
• CreatedLinuxVM'sand involved in tuningthe operating system for installation of applications
• Installing,administration andtroubleshooting ofApache 2.xweb server, which included tasks likecreating virtual hosts,installingSSL certificatesetc.
• Installation ofLinuxserversand creationof VMS'susing the web consolevCenter on VMWare ESXI.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed Linux servers for Applications to be deployed.
• Network Monitoring using Nagios tool.
• Experience in Servers consolidation and virtualization using UML Linux, XEN and VMware virtual infrastructure, VMware ESX 2.x, VMware Vcenter.
• Add resources like memory and CPU to the VMware Client.
• Worked oninstallation and administration ofversion controltools likeRCSandCVS.
• Managingconfiguration files likeApachehttpd.conf, crontabin the revision control systems.
• Performance monitoringand tuning of the applications and OSusingiostat,sar,vmstat,prstatcommands.
• Installation and Configuration of VMWARE ESX servers and Created RHEL Guest VM’s for Dev/ Test and production environment
• Installed/ upgraded patches, firmware, MP, GSP, BIOS and security (Kernel) patches for all HW & OS’s in installed infrastructure
• Upgraded Servers with Veritas Volume Manager(VxVM) from 3.x to 4.1
• Veritas Netback up installation & maintenance Backup/restore on ADIC (Intelligent Storage Scalar i2000k - Library Management Console) using server Windows NT/2000 & Sun Solaris server & taking backup in DLT tape & checking the job failures.
• Installation of patchesonservers runningRed Hat & SUSELinuxservers.
• Monitored Network devices using SNMP.
• Configured & Managed storage resources using LVM.
• Installed, managed Veritas Volume Manager 3.5 (VxVM) on Solaris 9 and RHEL.
• Configured NFS Servers, NIS+ Servers, NIS+ Clients, Diskless clients and Auto clients and automounted the file systems using direct and indirect maps. Also setup entries in /etc dfs dfstab in Solaris share file systems and mounted the disks onto the client systems.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Worked oncronologinLinuxservers formanaging the logs of the web servers.
• Was involved inChange Control Managementanddocumentation of the procedures.
• Used VMWare ESX5.X Server to build guest OS using cloning.
• Build, configure and deploy VMs and templates. Completed p2v, v2v and v2p migration of linux servers from VMware, Xen and legacy hardware
• Extensive use of open replicator to migrate storage from EMC DMX 1000 to DMX-4. configured, created sessions to migrate data.
• Monitored server and application performance & tuning via various stat commands (top, mpstat, prstat, nfsstat, prtconf, prtdiag, iostat, top, printmgr, hpimliview, dmidecode, smc etc) and tuned I/O, memory etc) for SUN Solaris and RHEL Servers.
• Installed and setup CUPS, LPD, configured local and remote printers
• Configuration of Fujitzu scanners.
• Created Korn shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation
• Jumpstart &Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Performed host based mighrations from IBM to NETAPP filers using Image Mode copy, Robocopy and Rsync Technologies.
• Hardening and securing of all the SUN Solaris and RHEL servers
• Configured JBoss Application servers over Apache web server in Linux based systems.
• Applying new patches and packages on Linux.
• Installation and configuration of Red Hat Linux 5.3 on V-sphere and VMware ESX.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Created LUN Assignments and monitored LUN/port performance on a daily basis.
• Participated in trouble shoot and upgrades of DPM.
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts.
• Design and build the core converged datacenter infrastructure using Vblock and VMware services to support the product environment
• Worked on installing, configuring splunk on Linux, Solaris servers, to enable log, port monitoring of servers, applications, escalating issues to the particular teams.
• Created Oracle Solaris zones in Oracle Solaris 11
• Participated in tuning HP-UX servers utilizing EMC stoarge platform.
• Adding Oracle ASM disk to the server. Creating managing volumes using LVM.
• Installation and configuration of MySQL on Red Hat Linux cluster nodes.
• Took Unix native backups and restore using ufsdump, ufsrestore&tar commands.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed Linux servers for Applications to be deployed.

Environment: Redhat EL 3.x, 4.x, windows server 2003/2008,VERITAS Volumemanager, Veritas Cluster Server 5.2 and VERITAS netback up 4.5.5, VMware ESX sever 2.x, Apache Web Server 1.3.x, 2.2.x, WebLogic 9.x, RCS 5.6, CVS 1.11.x, Sun T2000, v490, v890, 480R, Netra T12. Solaris 8,9,10, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential - Houston, TX

Linux/unix System Administrator

Responsibilities:

• Installing Red HatLinuxusing Kickstart and applying patches on the servers based on the company policies.
• CreatingLinuxVirtual machines, templates using VMware virtual client 3.5 and migrating servers between ESX hosts.
• Managing systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
• Good knowledge in Storage Area network(SAN) administration using EMC and Hitachi storage systems
• Secondary admin for Tivoli storage manager(TSM(4.1/5.3)), HACMP, LAAM
• Implemented corporate E-mail network using Sendmail on .
• RPM and YUM package installations, patch and other server management.
• Creating physical volumes, volume groups and logical volume.
• Installation and configuration of VMware ESXI 5.0
• Managed System Firewall utilizing IP Chains, IP Tables. Implemented SSH SSL.
• Experience in Creating and managing user and group accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Linux.
• Installing and configuring Apache and supporting them onLinux production servers.
• Troubleshooting the network issues and response problems.
• Maintaining production critical servers running Solaris UNIX, Linux supporting Oracle database and Web services. Providing 24x7 supports.
• Installation and configuration of Logical volume manager-LVM and Net backup.
• Experience with Nagios Network management and System monitoring tool.
• Documentation of all the setup procedures and System related Policies (SOP's).
• Experience in configuring DNS, NFS, NTP, ftp onLinuxservers.
• Experience in installing firmware upgrades, kernel patches, systems configuration, performance tuning onLinux/Centos systems.
• CreatingLinuxvirtual Machines using VMware virtual centre, V-sphere client.
• Team player with good management, analytical, communication and interpersonal skills.
• Providing 24/7 technical support to Production and development environments.

Environment: RHELLinux5.x,AIX, OEL, SAN, NAS, VERITAS Volume Manager, VCS, VERITAS Net backup, AWS, VMware ESX, SAN, NFS, Shell Scripting.