PROFESSIONAL SUMMARY .

• Overall 7 years in Information Technology, which includes 8 years as Linux/UNIX support and system administration on Red Hat EL, Debian, CentOS 4,5x,6x, FreeBSD, HP - UX, Solaris.
• Experience with Virtualization technologies such as installing, configuring, and administering Vmware ESX/ESX 5.0, 5.5, Red Hat environment using KVM based hypervisors..
• Experience in Server monitoring, capacity planning, application monitoring with the help of Nagios, Tivoli, HP insight, Cacti.
• Experience with RAID using Hardware Raid and Software Raid on Red Hat Linux in combination with Volume Management utility, Logical Volume Manager, GFS(global file system) and ZFS.
• Experience with Kickstart in Redhat Linux, Jumpstart, Live Upgrade, Flash Install in Solaris, Ignite in HP-UX .
• Expertise in implementation and maintenance of NFS, NIS, DNS, DHCP, LDAP and Samba Server in a heterogenous environment.
• Familiarity with monitoring tools and utilities such as sar, vmstat, iostat, netstat, free, and top.
• Knowledge of clustering techniques using Red Hat Cluster suite to ensure high availability.
• Familiarity with BASH Shell scripting.
• Experience in networking concepts like DHCP, TCP/IP, IP Addressing, Networking Technologies and WLAN.
• Hands-on experience in diagnosing, troubleshooting various networking, hardware & Linux/ UNIX server issues, performing preventive maintenance.
• Experience in NAS and SAN storage through LUN management.
• Experience in systems upgrades, patching Linux OS, kernel tuning and resource management for Oracle databases alongside DBA’s in team projects.
• Experienced in installation, configuration & maintenance of Apache-Lamp stack, MySql, Oracle.
• Experience of working in Data centers with 24X7 Production and On-Call Environment.
• Working knowledge and basic understanding on Cisco Switches and routers.
• Experience in Microsoft Office Suite, Open Office, Visio, Outlook, Printers, Windows networking.
• Experience in handling activities related to IT infrastructure management and technology resource administration also an experience of establishing vendor networks and channels.
• Deft in the management of operating system, network and applications with experience in configuring and troubleshooting various hardware and software related issues.
• Self starter, self motivated and quick learner. Excellent interpersonal communication skills. Strong problem solving skills. Ability to work in a team or independently.

TECHNICAL SKILLS INVENTORY .

Operating Systems: Linux (RHEL, Debian, CentOS), FreeBSD, VMWARE ESX, Open Solaris,MS Windows server.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k,E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray

Services: NFS, SSH, SFTP, FTP, rlogin, RPM, YUM, Samba, Auto FS, Telnet.

Monitoring Tools: Tivoli, Nagios, Cacti.

Networking: TCP/IP, UDP, LAN, WAN, NIS, DNS, DHCP, NAS, SAN.

Applications: Apache Tomcat, Oracle, Weblogic, MySql, Middleware-Tibco.

PROFESSIONAL EXPERIENCE

Linux Administrator

Confidential, Charlestown, WV

Responsibilities:

• Installation and configuration of Red Hat Linux Enterprise Linux 5.x,6.x, SuSE Linux 10/11, HP-UX (11.x).
• Windows Server 2008/R2/2012 on new server builds as well as during the upgrade situations.
• Installed Linux on IBM and HP Blade servers. Managed console access of IBM Blade servers using IBM Chassis interface.
• Experience with VMware vSphere ESXi 5.5.
• Managing File Systems per Database requirement
• Creating templates for Linux VM’s those are used for deploying for the environments.
• System audit report like number of logins, success & failures.
• Created user roles and groups for securing the resources using local operatingSystem authentication.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and Filesystems.
• Installation of OSSEC (Trend Micro) for the intrusion detection in the server and its configuration to check specific services are running only.
• Analyzing and monitoring system performance through various system tools such top, sar, vmstat, netstat, iostat.and perform kernel tuning to enhance the system performance.
• Install and configure packages for the server they are needed by vendors.
• Participated in the migration planning, developing, testing and moving the migration process into full-fledged production network
• Experience with change control process for any changes done on the server.
• Configuring Vsftpd and NFS Server with TCP Wrappers for local System Administration repositories.
• Experience in installing, integrating, tuning Apache and Tomcat application server.
• Supporting Customers on a real time System BMC Remedy,HPOV and SAM for solving online operational issues.
• Liasioning with Backup Team for backup management and recovery policies using Veritas NetBackup.
• Taking supplemental backup using tar and recovering during the data loss.
• Documenting the installation of third-party softwares.
• Maintaining relations with project managers, DBA’s, Developers, Application support teams and operational support teams to facilitate effective project deployment.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Performed regular installation of patches using YUM, RPM and Tarball utilities.
• Patching of windows server in the weekly basis on the entire environment as needed.
• Remotely copying files using vsftpd, scp, winscp, and filezilla.
• Configuring & monitoring DHCP server.
• Performed application installation and management on Linux servers for applications like Weblogic with Apache Modules, MYSql.
• Installation of SAMBA 3.6.x server for interface between Linux servers and Windows servers to share files.
• Troubleshooting of day to day Server & User related issues on Windows and Linux systems both.

Linux Systems Administrator.

Confidential, Rockville, MD

Responsibilities:

• Automated installation of Linux servers using Kickstart and Installation of Solaris using Flash, live upgrades and Jumpstart Servers.
• Creating and managing file systems, Creating and managing Logical volumes in Linux and VERITAS Volume manager in Solaris & Linux.
• Installation of patches and packages using RPM and YUM in Red Hat Linux and Suse Linux and also using patchadd and pkgadd in Solaris 10 Operating System.
• Usage of Solaris Service Management Facility for enabling, disabling and also troubleshooting services in maintenance mode.
• Worked on IBM system AIX and Z series.
• Knowledge in installing IBM Websphere server.
• Experience with configuring and Installing Zones for running applications in different zones in Solaris.
• SAN and iSCSI disk Configuration in Linux.
• Modified Kernel parameters to improve the server performance in both Solaris and Linux.
• Providing Statistics on Hard Disk Usage.
• Configuration of Clusters using VERITAS Cluster Services in Solaris and Linux.
• Backups of systems and restoration using NetBackup on both Solaris and Linux.
• Creating Disk Volumes, Installed and Configured RAID controllers RAID 0, RAID 1 and RAID 5.
• Installation of HBA drivers and Upgrading of HBA cards before the move.
• Installed, configured and maintained Apache/Tomcat Web Server.
• Installed and configured NFS, NIS and FTP Servers.
• Bash Shell Scripting for job automation.
• Understanding and experience on TCP/IP networking in Solaris and Linux Systems.
• Experience with VMware ESX Server 3.5.
• Performance tuning and monitoring of Servers in Solaris, Linux.
• Supporting Customers on a real time remedy ticketing System IssueTrak for solving online operational issues.
• Have worked on backup software like Veritas Backup Exec with DLO and Netbackup 4.5. Overseeing data backup compliance and handling escalations.
• Experience with the Change Management tool for reporting and resolving issues.

Junior Linux Administrator

Confidential

Responsibilities:

• Part of the Global TOC team 24/7.
• Handling Alerts and problem through Ticketing System, BMC Remedy.
• Remotely monitoring and troubleshooting Solaris (No.2500) and Linux (12000) servers (Data Center location: US,UK & Japan).
• Coordinated with SUN Microsystem for Hardware replacement and major server issue. (opening ticket with Sun, and followup).
• Linux/Unix Bash Shell Scripting.
• Overall System Administration. (Solaris, Red hat Linux).
• Connecting servers via RSH, SSH, Console, RSA, ILO, Telnet.
• Reporting, Conference call with Managers.
• Handled HP utility (hpasmcli. Hpacucli).
• Tuning and monitoring system performance and managing file system.
• Swap, daemon, process management.
• Handled TASK activities after Motherboard replacement, before and after hard disk, memory replacement.
• Middleware (TIBCO) application and monitoring.
• First level troubleshooting on Network (Switch, Router) Management, before escalation if necessary.
• Windows patching and Log & Health monitoring.

Systems Engineer.

Confidential

Responsibilities:

• Remote system administration and routine monitoring, health checks for Red Hat Enterprise Linux Unix infrastructure.
• Maintaining Linux scheduler­ CRON and Anacron for scheduled runs of utilities and inhouse applications on daily, overnight and weekly basis.
• Users and redhat package management & Tar Compilation, installation from tarballs.
• Nagios Server and client management and monitoring.
• Running SQL queries and generating reports as per interdepartmental requests.
• LVM Disk Creation, Configuration & Management on the NFS server.
• Patch Management, Health Monitoring through sar, top, vmstat and linux monitoring tools.
• Monitoring Disk & Swap space and configuration and applying changes.
• Interacting with the US and India counterparts to work on various projects.
• Ensuring adherence to SLAs on incident, service & maintenance requests.
• Presenting the monthly dashboard and reports to management.

Systems Administrator.

Confidential

Responsibilities:

• Implementing and Remotely monitoring Data Center servers. (Mumbai, Hyderabad & Delhi servers).
• Overall System Administration of all Fedora Linux Client OS and Red Hat Linux Server.
• Installation Configuration, Management of Fedora Linux 8, 9 and Redhat ES Linux 4.
• Red Hat & Fedora users administration and package management & Tar Compilation installation.
• Troubleshooting and testing under Linux Maintenance mode, Debug and Rescue mode.
• DHCP Server managements, Squid Proxy installation, configuration with NIS and NTLM authentication.
• LVM Disk Creation, Configuration & Management on the NFS server.
• Patch Management, Health Monitoring on Linux and Windows Server.
• Backup & Restoration using native utilities and HP Open Storage Data Protector.
• Liaising with vendors & service providers for procurement and escalations.
• Implementing policies, installing & monitoring Security Tools.
• Service Desk Management.