SUMMARY:

• Over 10 years of experience in Linux, AIX, HP-UX, Redhat, Suse, Ubuntu, Fedora, Solaris Administration.
• Understanding and working knowledge of standard concepts, best practices and procedures to ensure optimal efficiencies of Solaris Red Hat.
• Extensively worked on configuring administering YUM, RPM's, NIS, NIS , NFS, DNS, DHCP, Mail servers.
• Expertise in VERITAS Volume Manager, RAID, Sun-Cluster, VERITAS Cluster.
• Expertise in disk, file system management, Volume Management using VERITAS volume manager, VERITAS File System other logical volume manager.
• Wrote UNIX shell scripts for Job automation.
• Experience in Oracle installation closely worked with DBAs on System Performance Tuning for Oracle. Web Hosting Administration, HTTP, FTP, Telnet, SSH.
• Installation and upgrade of Software's and Patches, configuration management, service pack. troubleshooting connectivity issue regarding Ssh, network problems. Maintain various level of documentation. Co-ordinate with change management.
• Proficient in OS upgrades and Patch loading as and when required
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Experienced in Performance tuning of Sun SPARC, E10K, HP UX, RHEL 5.x servers using tools like vmstat, iostat, SAR, top, pmstat, sysstat, netstat etc.
• Experience working on variety of Sun servers 6800, 4800,890 , IBM servers p5 510/520/9111 for AIX , HP Proliant DL series for Linux.
• Worked with Storage Area Networks for Storage expansion Fabric connectivity issues.
• Excellent troubleshooting skills, performance monitoring, root cause analysis on Solaris's.
• Build Linux servers extensively on VMware.

TECHNICAL SKILLS

• Operating Systems Sun Solaris 8, 9, 10 Redhat Linux 4.x, 5.x ES3/4, HP-UX 0.20/11.0/11.11,11.23, AIX4.1/4.3.3/5.1/5.3
• Software Packages VERITAS Volume Manager 4.0/4.1, VERITAS File System 3.x/4.1, VERITAS Cluster Server 4.0
• Application Servers Web Sphere, HTTP, Apache1.2, Tomcat, Web Logic
• File System UFS, VxFS, CIFS, CFS, ZFS, JFS, VFS, GFS
• Storage EMC Symmetric, Clarion, Sun Storage D1000, A5000/5200
• Backup Tools VERITAS Netback up 4.x/5.1, TSM
• Hardware Sun Fire 4800/3800/880/680, Enterprise 6500/5000/450/420R, IBM RS 6000, Pseries, Power edge 2850/1850, HP/9000 K

PROFESSIONAL EXPERIENCE:

Confidential

Sr UNIX ADMINISTRATOR.

Responsibilities:

• Invovled in ESXi cluster builds for Billings projet.
• Impl mentation of passwordless SSH among the servers.
• Built SUSE Virtual servers for numerous projets.
• VERITAS CLUSTER SERVICES for HA.
• Built Nagios servers.
• User cr ations and SUDO permissions were allocated for the users.
• Used extensively 'autofs' for mounts.
• Used Ganglia as part of monitoring.
• Handling Server Alerts, tickets Change Requests.
• Responsible for Handling Escalated Tickets to Level3 Team.
• Managing Clusters VERITAS Clusters, VFS all
• Patch, Packages Installation, Disk and File system Management
• Using Bash scripts for day to day activities.
• Installed and monitored middleware applications like TOMCAT and APACHE.
• Experience on the Logical Volume Manager, managing physical volumes, volume groups, Logical volumes, performing file system management
• Responsible for creation and Impl mentations of CMWO Change Management Work Order which includes changes done On Production, Test, Development and Pre-Production servers as per norms.
• Coordinating with Tier3 CSA's, Application Team.
• Performance Tuning, Resource and Device Management and Troubleshooting
• File system, Device Services Management NFS, Mail Server etc.
• Managing NFS, NIS and DNS Servers and Clients, Auto mount System
• Managing day-to-day user administration like adding or deleting users, password aging users/groups, NFS using the TCP/IP applications such as Telnet, FTP, and R-logins.
• Handling issues regarding storage tools VxVM and SVM Disk Suite
• Regular on-line disk management like adding / replacing hot swappable drives on existing Servers/Workstations, partitioning according to the application requirements in a datacenter.
• Installation and monitoring Veritas Volume Manager and file system management.
• Remote system administration using tools like ssh, rsh, and rlogins.
• Installation of ESXi software 5.5 on HP servers
• Built DNS servers for Development

Environment: HP Blade servers DL 385 G1, G5, G6, DL 360, DL 165, DL 145, DL 140, Redhat Enterprise Linux 5.2/5.3, Sun Solaris 8,9,10, AIX 5.3/6.1, LDAP, Oracle 10g, 11g, Sun Fire 6800, 4800,V890, V880, V490,V480 and V210, DNS, NIS, NFS, Sendmail

Confidential

Sr UNIX ADMINISTRATOR.

Responsibilities :

• Configuring SUDO and granting root permission to users for performing certain activities.
• User management and creating accounts.
• Builded lot of Linux 5.X and 6.X servers on virtualization platform using VMware.
• RHEL servers were build using iso images and Dvd.
• Worked with Logical Volume Manager LVM extensively.
• Trouble shooting network issues.
• Kernel upgrade and OS upgrade using YUM
• Powerpath is used extensively for multipathing when SAN was allocated.
• Configuring passwordless SSH for Oracle RAC servers.
• Installation and configuration of Splunk to monitor the log files in the servers.
• Worked extensively on SUSE Linux for builds and management of day to day activities.
• Configured and maintained NFS.
• Build and maintained OVM on RHEL.
• Installed Apache for middleware team.

Confidential

Sr UNIX ADMINISTRATOR.

Responsibilities:

• Installed, upgraded and configured Redhat Enterprise Linux 5.6, 5.7, on HP Blade servers.
• Worked with Logical Volume Manager LVM extensively.
• Involved in system upgrades, evaluate and install patches and resolve software related problems.
• Working closely with Vendors on Hardware Problems, software fixes.
• Setup, maintain and manage user accounts and groups according to the company standards and SOX compliance.
• Configuring SUDO and granting Root permission to users for performing certain activities.
• Installation of SSH and configuration of key based authentication.
• Builded lot of Linux 5.X servers on virtualization platform using VMware.
• RHEL servers were builded using iso images and Dvd.
• Worked with mysql and PHP.
• Ran scripts for SOX audits.
• Used SNMP for monitoring the servers.
• Installed and configured SUSE Linux.

Environment: HP Blade servers DL 385 G1, G5, G6, DL 360, DL 165, DL 145, DL 140, Redhat Enterprise Linux 5.2/5.3, AIX 5.3/6.1, LDAP, Oracle 10g, 11g, DNS, NIS, NFS, Sendmail

Confidential

LINUX ENGINEER

Responsibilities:

• Builded servers for Oracle RAC 10g, 11g.
• Experience in installing Oracle VMs and Oracle Linux.
• Builded and worked extensively on Oracle Virtual Machines.
• Done NIC bonding for redunancy in servers.
• Virtual IP's were allocated for the servers which would server the purpose of redunancy.
• Worked on Sopho's anti-virus on Linux servers to prevent and supress viruses.
• Trouble shooting network issues.
• Kernel upgrade and OS upgrade using YUM
• Worked with Logical Volume Manager.
• Powerpath is used extensively for multipathing when SAN was allocated.
• Configuring passwordless SSH for Oracle RAC servers.
• Puppet installation and configuration was done for automation.
• Installation and configuration of Splunk to monitor the log files in the servers.
• User creation and sudo permissions were allocated for the users.

Environment : IBM blades R 710,R 610 Redhat Enterprise Linux 5.X, Puppet, Splunk, Vsphere, NFS, Oracle RAC, 10g, 11g.

Confidential

BUILD ENGINEER

Responsibilities:

• Installed and configured Redhat Enterprise Linux 5.X on IBM blades.
• Quaterly and halferly Patching was done to servers using YUM utility.
• Servers were Builded for Oracle RAC with OEM.
• Installation of SSH and configuration of key based authentication.
• Invovled in installing, Configuring and administration of VCS clusters.
• Extensively used VXVM along with VCS clusters for file system.
• Configured cluster server on Redhat Linux using native multipathing.
• Configuring SUDO and granting root permission to users for performing certain activities.
• User management and creating accounts.
• Builded lot of Linux 5.X servers on virtualization platform using VMware.
• RHEL servers were build using iso images and Dvd.
• Worked with Logical Volume Manager LVM extensively.
• Used NGOSS monitoring for servers.
• Written IPTables which serves are firewall from server side.
• Done lot of documentation for OAT.
• Administered ESX servers as a junior administrator.

Environment : IBM blades HS22, Redhat Enterprise Linux 5.X, VXVM, VCS, NFS, Oracle RAC, 10g, 11g.

Confidential

UNIX ADMINISTRATOR.

Responsibilities:

• Installed, upgraded and configured Redhat Enterprise Linux 4.2, 5.2, 5.3, on HP Blade servers using HP Onboard Administrator and using kickstart installation, and installed and worked with Solaris 9 and 10 on Sun servers.
• Plan and Deploying assigned projects, change management, on-call support, and hotline bridge participation.
• Configured cluster server on Redhat Linux using multipath.
• Worked extensively with HP OnBoard Administrator, Virtual Connect Manager and ILO Integrated Light Out's to configure the Physical server and got the OS on the servers
• Plan and Deploying assigned projects, change management, on-call support, and hotline bridge participation.
• Involved in installing, Configuring and administration of Solaris 8, 9 and 10 servers by using Jump Start server.
• Involved in systems upgrades, evaluate and install patches and resolve software related problems.
• Working closely with Vendors on Hardware Problems, software fixes.
• Administration of NFS, NIS, DNS and Send mail servers.
• Provided 24X7 support for large number Production, Development and Test systems.
• Setup, maintain and manage user accounts and groups according to the company standards and SOX compliance. Adding the packages and patches when needed.

Environment: HP Blade servers DL 385 G1, G5, G6, DL 360, DL 165, DL 145, DL 140, Redhat Enterprise Linux 5.2/5.3, Sun Solaris 8,9,10, AIX 5.3/6.1, LDAP, Oracle 10g, 11g, Sun Fire 6800, 4800,V890, V880, V490,V480 and V210, DNS, NIS, NFS, Sendmail

Confidential

UNIX ADMINISTRATOR

Responsibilities:

• Installing, upgrading and configuring Redhat Enterprise Linux 4, 5.1, 5.2 on HP servers using kickstart installation, also CentOS 4.x manually and using Kickstart and upgrading through YUM installation.
• Plan and Deploying assigned projects, change management, on-call support, and hotline bridge participation.
• Migrating Linux boxes from CentOS and Redhat 4.x to latest kernel of Redhat 5.x.
• Order the server hardware from the vendor as per client's needs and requirements.
• Trouble shooted various problems when working with Installing and configuring OS and network device remotely in various site.
• Experience in providing day-to-day user administration like adding/deleting users and managing user's queries and Installed and maintained System Configuration Management tools using Puppet both Server and Clients .
• Assisted customers with setting proper Priority/Severity of problems, work problems to resolution, recorded/documented actions in databases as well as utilized tools and resources.
• Opened many tickets for the issues raised on the Servers including Configuration of New Servers, and technical and hardware based on Business Continuing Plan BCP with a perfect strategic plan.
• Troubleshooting and analysis of hardware and software failures for various Linux Server, Console Servers MRV Console Servers and Power Distribution Units PDU in almost dozen of Collocation Site
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, RPM, LVM, NFS, NIS, JSP, SSL, NIS , SNMP, SMTP, RPM and JBoss Server Samba Web servers on Redhat Linux and CentOS.
• Installed and maintained the issues for all Oracle boxes installed on the new servers.
• Provided 24X7 support for large number Production, Development and Test systems.
• Setup, maintain and manage user accounts and groups according to the company standards and SOX compliance. Adding the packages and patches when needed.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Worked on tickets to resolve day to day hardware/software/application bottlenecks.
• Constant Monitoring of System Performance.
• Involved in Day-to-Day trouble shooting for the end users on Solaris based applications.
• Coordinated with Sun for Solaris servers and Solaris servers for Dell servers regarding hardware issues using Enterprise support.

Environment: LINUX servers Redhat Enterprise Linux CentOS Servers , HP DL 385, DL 360, DL 165, DL 145, DL 140, MRV Console Servers MRV LX-4032T , Power Distribution Units PDU , HP-UX 11.2x, 11.3, Bash Perl Scripting, Oracle 10g, VMware, Sun Cluster in SAN, Weblogic.

Confidential

UNIX SYSTEMS ADMINISTRATOR

Responsibilities:

• Installed Servers using kickstart, jumpstart and network based.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Performed the administration of the Domain Name Server and configuration of the Database Files.
• Troubleshooting Backup and Restore problems and performed Day-to-Day trouble shooting for the end users on Solaris based applications.
• Worked with Logical Volume Manager LVM .
• Involved in Network and jumpstart installation.
• Performed procedures to ensure optimal efficiencies of Solaris Red Hat
• Performed OS upgrades and Patch loading as and when required.
• Constant Monitoring of System Performance and managed file systems.
• Performance Tuned and Maintained UNIX servers.
• Responsible for taking Backups using ufsdump , fssnap , tar , cpio and restoration using ufsrestore .
• Ensured appropriate user service level is maintained
• Backing up and restoring files across the network
• Responsible for Connectivity Issues among various Servers.
• Responsible for Installation of various software components on several servers.
• Installed and Configured Send mail Utility on Sun UNIX Servers.
• Performed scheduled incremental backups using ufsdump .

Environment: Solaris4.x, Sun Fire 15K, Sun Fire 6800, 4800, V880, V420R, E220R, E450, Veritas Foundation Suite, Veritas Volume Manager, Veritas File System, Veritas Cluster Manager, Solstice Disk Suite and Veritas Net backup, Websphere, Weblogic.

Confidential

SOLARIS ADMINISTRATOR

Responsibilities:

• Experienced in Installing, Upgrading, Configuring and Administrating Solaris servers.
• Perform user management, group management and device management in Linux.
• Experience in Job scheduling, and monitoring of various jobs running.
• Installation of software packages and checking the integrity of the installed packages
• Configured and maintained NIS, NFS, and DNS client
• Performance monitoring and tuning of file systems: By using commands such as SAR, uptime, vmstat, tunefs, sysdef, performance of the system is monitored
• Use of ufsdump and ufsrestore to take regular backups of all crucial data and file systems.
• Use of SU command and restricting root to console login. Managing crontabs automating scheduling.
• Creating and maintaining a Solaris UFS file system and disk slices.
• Administering and Configuring Multi-Unix environment with 1000 Sun SPARC Servers on heterogeneous
• network.
• Installation, configuration, monitoring and troubleshooting of Red Hat 3.0 ES.
• Monitoring network activities optimizing the performance of the Network
• Trouble shooting the connectivity and accessibility issues.

Environment: Sun 6, 7 and 8, Sun Fire 4500, V880, V480, E4