SUMMARY

• Over 8 years of experience in implementation, administration and Application-production support in UNIX RedHat Linux and HP-Unix environments.
• Experience with VMware to deploy Linux OS.
• Proficient in Installation, Configuration, Support Maintenance of various Red hat Linux Servers located at Remote Locations.
• Good knowledge of VERITAS products such as Volume Manager VxVM VCS.
• Server high availability experience in Redhat Cluster and Veritas Cluster.
• Extensive experience in NFS, NIS, SAMBA, LVM, IPTABLES, Sudoers, Crontab, RPM, YUM, Printing-CUPS, Software RAID, Send Mail configuration and administrations.
• Capacity planning Performance Analysis, Uptime Response time analysis.
• Good knowledge on all the system and network monitoring and troubleshooting tools.
• Installation and upgrade of Software Patches, configuration management. Maintain various level of documentation. Co-ordinate with vendor to resolved OS issue.
• Experience in Incident Change management process ITIL
• Excellent communication, team membership and relationship management skills.

IT Skills:

Experience

Confidential

Linux System Administration

Roles Responsibilities:

• Installation and configuration of Redhat Linux Servers with SFC Solar Flare Card for new build environment.
• Install and configured Linux servers using kickstart and RHEL ISO image methodology.
• Configuration of CPU pinning using CSET to achieve better application performances.
• Customization of Linux TCP kernel parameter and ulimit values.
• Configuration of LUNs assigned by the storage team, and manages volumes using LVM and VXVM in Linux.
• VCS cluster configuration and administration.
• Responsible for creating and managing user accounts, security, rights.
• Configures NFS, FTP, IPTABLES, sudoers and enabling CRON.
• Troubleshooting and problem resolution of system performance and networking using nmon, sar, iostat, nmap, tcpdump, wireshark, starce etc..
• Customization of process dumps to analyze the performances
• Creation and management of Linux Virtual Machines using VMware Virtual Center
• Configure SSH configuration files and manually set sshd authorized keys file.
• Patched servers using YUM repositories
• CUPS Configuration.
• Resolved open tickets in a timely, professional manner and provides a positive customer experience
• Co-ordinate with vendors Red Hat for OS related issues

Chef Configuration Management:

• Experienced on build/manage Linux Server Infrastructure using Chef Automation tool.
• Install a Chef Server, Workstation, and Client on RHEL
• Create Chef Cookbooks to Manage Infrastructure on RHEL
• Use Roles and Environments in Chef to Control Server Configurations.
• Use Chef's knife command to view and manage Chef Server.

UNIKIX Clerity TPE/BPE Administration:

• Administrating and Operating the Clerity Unikix TPE/BPE environment to maintain the availability of Application in the LINUX platform
• Install/Upgrade TPE/BPE software's.
• Troubleshooting application, communication and system errors as needed to guarantee the application availability in the LINUX platform
• Working with Customer Support Service teams DELL or directly with the customers to resolve operational or technical issues
• Responsible for vendor software administration, installation and support. Serena Dimensions, DMExpress, CA Easytrieve,CA XCOM,ESP etc....

Confidential

Linux System Administration

Roles Responsibilities:

• Administrate maintain1000 Linux Servers.
• Install and configured Linux servers using kickstart methodology.
• Ensure that the operating system is fully secure. Hardening Policy .
• Setup NFS servers clients for file disk sharing.
• Using LVM for dynamically extending reducing partition size as when needed
• Deployed a custom syslog reporting solution for system alerts and notifications.
• Co-ordinate with vendors Red Hat for any hardware and OS related issues.
• User administration and SUDO configuration.
• Creating RFC's. Technical change planning and implementation.
• Develop and implement improvements and processes, motivate the team as well as ensuring SLA's are met.
• Dealing with all escalations to the team in a professional and timely manner.
• Call prioritization and time management.

Confidential

System Administration - Linux and HP-UX

UK-DCS is a Multiclient project from UK including customers like SHIRE, DHL, LR, HOF, and MIS. Capgemini provides end to end solution to their business needs, incorporating the combination of best-of-breed technology with in-depth business knowledge market insight. My role is to manage the UNIX Linux Server Administration and performance monitoring.

Responsibilities in this project include:

Incident Management:

• Administrate maintain several Linux, HP-UX servers.
• Ensure that the operating system LINUX / HP-UX is fully secure. Hardening Policy .
• Define and maintain operating system parameterizations kernel parameters .
• Install operating system patches and upgrades in coordination with the requirements of other software components and client
• Setup NFS servers clients for file disk sharing for UNIX/LINUX
• Using LVM for dynamically extending reducing partition size as when needed
• Responsible for uptime of all the servers/nodes.
• Co-ordinate with vendors HP- UX/Red Hat for any hardware and OS related issues.
• Monitoring the systems for performance checks using HPOV as monitoring tool.
• User administration and sudo configuration

Capacity and Availability Management:

• Generating Capacity and Availability reports for various servers and providing it to particular contract owner.
• Ensuring all reports getting generated properly.

Event Management:

• Configuring and maintaining HPOV on HP-UX and Linux servers.
• Monitoring several UNIX serves through HPOV monitoring tool for various events.

Change Management:

• Creating RFC
• Creating CIP Change Implementation Plan and RIA Risk Impact Analysis
• Technical change planning and implementation.

Confidential

System Administration - Linux and HP-UX

• The infrastructure comprises of 1 Primary Data Center's PDC , in Mumbai India , and the corresponding Disaster Recovery DR sites at Chennai,
• The architecture at each DC comprises of HP-UX servers in a MC Service Guard cluster configuration, along with Linux servers under the RHEL OS. The entire architecture is served by a Hitachi XP1024 SAN array and supported by the Veritas Netbackup Enterprise Backup Solution.
• Servers are monitored using the HP Open View Operations OVO suite. The DR site at Chennai uses SAN data replication.

Linux HP-UX Responsibilities:

• RedHat Enterprise Linux/HP-UXHA High Availability implementation/maintenance at NSE Operations involved with design, implementation and support of the solution.
• Several HP-UX and Linux servers from the rx7460, rx6600, rx4640 and rp3440 series, Blade server, along with 2EVA5k and EVA8k storage arrays, are implemented within Disaster Tolerant architecture, spanning 2 physical sites namely India DC at Mumbai and India DR at Chennai.
• Maintaining 6 x 2 RHEL 5 Cluster comprising of 12 Red Hat Linux nodes, for India DC and DR.
• Dual HBA's with 2 GB/s throughput, managed through Secure Path to the SAN for redundancy and load balancing.
• NTP implemented across the UNIX/Linux enterprise.
• Root ignite server for HP-UX system image backup
• Setup NFS servers clients for file disk sharing for UNIX/LINUX.
• Migrate HP-UX shell scripts to RHEL
• Using LVM for dynamically extending reducing partition size as when needed
• Maintaining Data replication between India DC and DR, using the SAN based replication technique
• Performed server hardening and security lockdown of UNIX/LINUX servers as per the company's security policy and recommendations from security consultant like PWC, Paladion.
• Deploying HP Open View Operation Agents on all UNIX/LINUX servers for Monitoring critical system, and application availability metrics for proactive notification.
• Deployed and configured Veritas Netbackup Agents on UNIX/LINUX servers for backups. Also reviewing backup policy, design and create backup schedules for India DC and DR.
• Participate in internal and external Security audits
• Co-ordinate DR tests under the guidance of the Project Delivery Head

Confidential

Linux Administrator

Linux Experiences:

• Monitor Performances Statistics on regular intervals and also on threshold levels.
• Ensure that the operating system LINUX is fully secure. Hardening Policy
• Perform routine maintenance on servers hardware/operating system LINUX.
• Define and maintain operating system parameterizations kernel parameters .
• DHCP, SAMBA, NFS FTP server configuration.

Confidential

Linux Administrator

Responsibilities:

• Installing and maintaining Linux servers and desktops.
• User administration.
• Configuring and securing cron job scheduler.
• Configuring and maintaining Samba and NFS sharing.
• Managing user group, disk quota accounting.