Shashank P

Linux/Unix Administrator

248-***-****

PROFESSIONAL SUMMARY:

Have 6+ years of IT experience in System Administration with extensive experience on UNIX (Solaris, HP-UX, and AIX), Linux (Redhat, SuSE, Ubuntu, CentOS), VMWare (ESX/ESXi), Windows (NT/2000/2003) Administration.

Have good Experience in LINUX Administration in implementation of services like NFS, NIS, and NIS+, DNS, DHCP, LDAP, Mail servers and Samba servers.

Experience in building Servers using Jumpstart for Solaris and Kickstart for Linux and Ignite for HP-UX. Exposure to NIM for AIX installation.

Installed various RPMS on Linux.

Experience in RPM Package Administration for installing, upgrading, and checking dependencies.

Involved in installation, configuration and administration of Apache Web server

Knowledge of selinux concepts in RHEL5&6.0, Network monitoring tools (netstat, nmap, tcpdump), partition creation, Boot process, File permissions, sudo, ACL, SSH, Telnet and SCP.

Involve in administration and maintenance of ISA server, Exchange Server, Active Directory Service, DHCP, DNS, FTP, Web server in Windows environment.

Configured and installed OS by using HPSA.

Installed and maintain puppet-based configuration management system.

Problem determination and troubleshooting, Security using SSH.

Experience in creation & maintenance of file systems, and User & Group Administration.

Performed memory and process management and troubleshooting.

Administering operating systems, hardware, and peripheral components, and maintain databases.

Have good knowledge in designing and implementing LANs, WAN services and IP Addressing schemes.

Experience in creation & maintenance of file systems, and User & Group Administration.

Performed memory and process management and troubleshooting.

Pervasive experience in performing the administering operating systems, hardware, and peripheral components, and maintain databases.

Excellent communication, analytical, and problem solving skills.

Experience in Multipathing using EMC Powerpath, Veritas and MPxIO.

Extensive experience in IPMP (IP Multipathing) in Solaris and bonding in Linux.

Experience in running commands and working on SUDO rules.

Involved in 24x7 on-call production supports and troubleshooting problems related to OS and Application Server with Tivoli monitoring tool and Remedy ticketing Systems.

Advance level of experience in researching OS Issues, Applying Patches and Opening the Vendor Tickets.

Experience in UNIX performance tuning using Solaris utilities -iostat, vmstat&nfsstat.

Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.

Good working knowledge in registering different client servers to master Redhat Satellite Server.

Knowledge in installing and configuring Application servers Apache, Weblogic, Websphere, Jboss and Iplanet.

Good experience in Storage Area Network (SAN), EMC Symmetrix/ Clarriion, HP, Hitachi, NAS (Net App), DAS.

Excellent interpersonal skills, independent problem solving skills, the ability to work effectively in critical situations and hard working.

TECHNICAL SKILLS:

Operating System

Red Hat Linux 6/5/4/3 Solaris 10/9/8, Ubuntu 6.x/7.x, HP-UX 11.0, 11.11, 11.23, 11.31, IBM AIX 5.x/4.3, Windows 2003/2000.

Hardware

Sun Fire 280R/V480/3800/4800/10K/12K/25K Server, Sun Enterprise 6500/4500/450/ 420R/250 Servers, T-Series, M-Series, SunBlade 6000, HP-9000 K,L,N series, Proliant DL585/360/380 G5, G6, p3440/rp7440/rp 8440 Server, IBM RS/6000 /S80 / M80 / H70 / H50 Series server and pSeries, HP/Dell/IBM/Sun Blade Servers.

Network and Security

ISA Server, Exchange Server, Active Directory Service.

Broad experience with VMWare, VCloud, Firewalls and VPNs. Comprehensive knowledge of security protocols: IPSec, L2TP, PPTP and WEP (Wireless Encryption Protocol)

NFS, NIS, NIS+, DHCP, Proxy Server, DNS, LDAP.

Web Servers

Apache 2.x/1.3x, Tomcat, WebLogic 10/9/8 & Web Sphere 6.0/5.0/4.0

Programming Language

Object Oriented C++ (MFC/Windows API/Networking),Visual Basic, Java, HTML/Web development, Perl, Bash Scripting, Active Server Pages and Java Server Pages, ColdFusion

Database

Oracle, UDB, MS SQL Server, MySQL, MSAccess

American Family Insurance

Madison, Wisconsin Jun 15 –Present Linux/Unix System Admin

Responsibilities:

Installation, Configuration & Upgrade of Solaris, Red-hat Linux, AIX, HP-UX operating systems.

Installation of patches and packages, Installation & configuration of Jumpstart/Flash archive, Ignite and kickstart servers.

Administered DNS, NIS, NIS+ and NFS, Send Mail and involved in troubleshooting.

Expertise in VERITAS Cluster Server 4.0/3.5/2, Redhat Cluster Server, HP MC/Service Guard A11.01/10.11, Zone administration and configuration.

Installation and configuration of Veritas Volume Manager, Veritas File System and Veritas Cluster Server; Maintaining and troubleshooting VCS for Failover and redundancy.

Configured GFS (Linux) and ZFS (Solaris) filesystems.

Responsible for creating, cloning Linux Virtual machines using VMWare virtual client 3.5.

Disk and File system management through Veritas Volume Manager, Solaris Volume Manager, Logical Volume manager.

Worked on Solaris 10,Service management on Solaris 10 through SMF; User administration and managing file systems; Created Oracle/UDB users and assigned appropriate permission.

Configuring & handling Samba servers on Linux, Managing file system.

Installation, Configuration and Administration of Websphere and Apache Servers.

Having production experience supporting and deploying to web application servers such as BEA WebLogic, Red Hat JBoss, Apache,Tomcat, and Apache HTTPD servers.

Used bash shell scripting and Phyton

Worked on Solaris container Technology; Created local and global zones.

Solaris zones configuration for application; Server Build from the scratch with CD and Automated Installation; Implemented Security Hardening per company policy; Trouble shooting system and user problems.

Added Service Groups and resources based on the requirement with appropriate dependencies, Documented the in change design/Architecture diagram of Veritas Cluster Servers.

Web-logic 8.1.6/9.2 on Linux and Solaris environment. Updated license of WLS server.

Planning and implemented Disaster Recovery sites from the scratch; Involved in disaster recovery testing every quarter.

Additional responsibilities included the initial design of a direct Internet connection requiring interaction with management concerning the wide array of solutions available.

This connection utilized a screened-subnet architecture implemented via a demilitarized zone (DMZ) and bastion host proxy acting as the firewall. Security concerns were of the utmost importance.

Part of my duties included documenting and testing the qualification design of the system while strictly implementing a security policy.

Interacting with various teams such as Oracle database team, and NetBackup team.

Backup management and recovery policies using Veritas NetBackup.

Experience of Storage Area Network/SAN, EMC Symmetrix/ Clarriion.

Interaction with vendors for Hardware and software supports.

Worked on configuring & troubleshooting of SuSE Linux 10.x/11.x.

Involved in on-call pager rotation for production support; Demonstrated skill in supporting end users and proven ability to plan, organize and work as a member of a technical project team, both in small groups as well as large corporate areas.

Environment: Solaris 10/9/8,Linux RHEL 5,SuSE Linux 10.x, Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000, M5000, HP L/N/RP series,IBM Power 570,p5 505 Express servers, Ubuntu 6.x/7.x, Apache,SAN EMC/HP/Hitachi, Veritas Volume Manager, VCS, Veritas Netbackup.

Molina Health group DEC14 – MAY15 Long Beach, CA

Linux/Solaris Systems Administrator

Responsibilities:

Installation, Configuration & Upgrade of Solaris, HP-UX, AIX, Linux Operating Systems.

Experience in the design, development and support UNIX system images using Solaris Jumpstart, HP-UX Ignite and RedHat Kickstart.

Experience in configuration and administration of NFS environment.

Configured Domain Name System (DNS) for hostname to IP resolution.

Experience in managing file systems and disk management using Solstice Disk suite.

Experience in configuration of system initialization files.

Administered the software Packages and Patches on Servers as well as on workstations.

Installed and maintained the machines with the updated patches and necessary client software packages, pkgadd, pkginfo, pkgrm, patchadd, showrev –p, patchadd –p.

Experience in creating RPM packages using RPMBUILD, verifying the new build packages and distributing the package.

Expertise in the System Imager to create/clone RedHat Linux Servers.

Configured systems with Veritas Volume Manager, Veritas File System using vxdiskadmand vxassist utility.

Expertise in using Veritas Cluster for load balance & redundancy for web & database server.

Experience in setup and configuration of HP-UX Itanium Servers with Service guard and Virtualization.

Experience in installation of Oracle-8i Server, Oracle Client Software on the application server and configuring the connectivity using JDBC drivers for the DB. Troubleshooting the connectivity from the application to DB, maintenance of the DB’s in Servers.

Schedule backup jobs by implementing Cron job schedule during non business hours.

Performed Backup management through regular ufsdump, ufsrestore, fbackup, F-Recovery and DLT tape drives.

Performed benchmarks for new software and hardware upgrades. Involved in preparation of Disaster Recovery Plan for the Systems.

Shell Scripts were developed for regular system maintenance.

Managed UNIX Infrastructure, EMC Storage involving maintenance of servers, and troubleshooting problems in the environment.

Monitored the system performance and the kernel tuning to enhance the system performance.

Expertise in installation, configuring all the hardware, peripheral, operating system and software to effectively deliver system up time.

Worked on maintaining the disk-less clients, servers, and workstation.

Environment: Solaris 8/9, Linux, HP-UX, AIX, Sun Enterprise Servers E5500/E4500 and E3500, MSeries, HP rp7420, rp8420, L, N, D Class, IBM e-Server Regatta P690, P570, RS6000, Blade Servers

InfoTech Solutions

Hyderabad, India APR12 – NOV 14

UNIX Administration

Responsibilities:

Installation, Configuration & Upgrade of Solaris, Red-hat Linux, AIX, HP-UX operating systems.

Installation of patches and packages, Installation & configuration of Jumpstart/Flash archive, Ignite and kickstart servers.

Administered DNS, NIS, NIS+ and NFS, Send Mail and involved in troubleshooting.

Expertise in VERITAS Cluster Server 4.0/3.5/2, Redhat Cluster Server, HP MC/Service Guard A11.01/10.11, Zone administration and configuration.

Installation and configuration of Veritas Volume Manager, Veritas File System and Veritas Cluster Server; Maintaining and troubleshooting VCS for Failover and redundancy.

Configured GFS (Linux) and ZFS (Solaris) filesystems.

Responsible for creating, cloning Linux Virtual machines using VMWare virtual client 3.5.

Disk and File system management through Veritas Volume Manager, Solaris Volume Manager, Logical Volume manager.

Worked on Solaris 10, Service management on Solaris 10 through SMF; User administration and managing file systems; Created Oracle/UDB users and assigned appropriate permission.

Configuring & handling Samba servers on Linux, Managing file system.

Installation, Configuration and Administration of Websphere and Apache Servers.

Having production experience supporting and deploying to web application servers such as BEA WebLogic, Red Hat JBoss, Apache, Tomcat, and Apache HTTPD servers.

Used bash shell scripting and Phyton

Worked on Solaris container Technology; Created local and global zones.

Solaris zones configuration for application; Server Build from the scratch with CD and Automated Installation; Implemented Security Hardening per company policy; Trouble shooting system and user problems.

Added Service Groups and resources based on the requirement with appropriate dependencies, Documented the in change design/Architecture diagram of Veritas Cluster Servers.

Web-logic 8.1.6/9.2 on Linux and Solaris environment. Updated license of WLS server.

Planning and implemented Disaster Recovery sites from the scratch; Involved in disaster recovery testing every quarter.

Interacting with various teams such as Oracle database team, and NetBackup team.

Backup management and recovery policies using Veritas NetBackup.

Experience of Storage Area Network/SAN, EMC Symmetrix/ Clarriion.

Interaction with vendors for Hardware and software supports.

Worked on configuring & troubleshooting of SuSE Linux 10.x/11.x.

Involved in on-call pager rotation for production support; Demonstrated skill in supporting end users and proven ability to plan, organize and work as a member of a technical project team, both in small groups as well as large corporate areas.

Teleparadigm networks ltd, India NOV 10– MAR12

UNIX Administration

Responsibilities:

Installing, Configuring & Upgrading of operating systems Solaris Windows 2000.

Monitoring System performance and kernel tuning to enhance the system Performance.

Configuration of NIS, NFS, sends mail on Solaris.

Writing Shell scripts for system maintenance and automation of jobs server.

Installation of Oracle Database Server.

Responsible for day-to-day System Administration for SUN SOLARIS and Windows NT servers.

Disk and File System management through VERITAS Volume Manager.

VERITAS File System and VERITAS Volume Manager are used to configure the RAID 1 and RAID 5 Storage Systems.

Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery Systems performance monitoring.

Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.

Responsible for troubleshooting, end user and application problems.

Creating User accounts, Mail account, groups, printer, etc.

Installing and administrating security tools like TCP/IP Wrappers, RBAC, and Sticky Bit.

Involved in Maintenance of DNS Servers.

Helping the users in configuring the Outlook Express for receiving the mail.

Installing operating systems, patches, hardware, vendor software packages, system customization and documentation.

Scheduling Cronjobs to automate the system.

Monitoring system resources, logs, disk usage, scheduling backups and restore.

Used tools ufsdump for day to day full and incremental Backups and ufsrestore for crash dump recovery.

Creation/configuration of additional swap/tamp dynamically as and when required.

NFS Management - Take care of user accounts/groups, setting up of NFS.

Environment: Sun Solaris (2.7, 8, 9), AIX (4.2), HP-UX (11.0), Windows-2000/2003 Sun Ultra E 4800/3000/450/250, Sun Fire 4800/3800, HP-9000, RS-6000, DELL/IBM/HP Blades, VERITAS Foundation Suite.

Polaris FEB 09- NOV10 Hyderabad, India UNIX Administrator

Responsibilities:

Installation, Configuration & Upgrade of operating systems Solaris and Linux and Installation of Packages and patches.

Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS on Several workstations.

Proficient in configuration ofVERITAS Cluster Server (VCS), fail over test of VCS groups, adding/modifying VCS resources such as File Systems.

Disk and File system management through VERITAS Volume Manager & Solstice Disk Suite on Solaris and other logical volume manager for Solaris and Linux.

Configuration of Hardware and Software RAID on Solaris and Linux Servers.

Monitoring System performance and do kernel tuning to enhance the system Performance.

Configurations of NIS, NFS, send mail on Solaris and Linux.

Providing day-to-day user administration like adding, deleting and modifying users and groups.

Interaction with vendors for Hardware and software supports.

Troubleshoot network systems and recommend improvements to network.

Responsible for day-to-day System Administration for SUN SOLARIS and Linux Servers.

Environment: Solaris 8,9, Linux, SUN Netra Servers, Sun Enterprise 4500/6500/450/420R/250 server, Sunfire 6800/4800/480, E10k/15K.

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