Administrator Resume Profile
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:
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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.