SUMMARY

• Over 6 years of Strong Experience in Linux Administration, Shell Scripting with expertise in RHEL 5, 6,7 & Windows 2003.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Linux/Unix Servers.
• Experienced with the installation, configuration and volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM).
• Experience in implementing and monitoring High Availability environment using Red Hat Cluster, Veritas Cluster Server.
• Proficient in Networking and configuring TCP/IP, DNS, NFS, SAMBA, LDAP, SSH, SFTP, SMTP, SNMP.
• Expert in Installation, configuration of Patches and Packages.
• Solid understanding of RPM, building, maintaining, and installing packages.
• Proficient in installation and configure file systems such as EXT, and software RAID managers such as Logical Storage Manager.
• Expertise in co - ordination between teams working in different groups (Network team, System admin team, Database team).
• Experience in Installation, Configuration and Troubleshooting of various web server issues including IBM HTTP Server, Apache Web Server 2.x/1.x, Tomcat 3.x.
• Efficiency in installing, configuring, and implementing of RAID0, RAID 1 levels using Logical Volume Manager, VERITAS Volume Manager
• Good experience in setting up of RAID0, RAID1 (mirroring) for data redundancy.
• Experience in installation and configuration of VERITAS Cluster Server.
• File system-organization, mounting, file types, permissions etc.
• Experience with backup technologies like Tivoli Storage Manager 5.x and Veritas Netbackup 3.x
• Installing, configuring puppet on linux, unix clients, creating new profiles, running checks, modifying scripts, pushing changes to the clients.
• Proficient in configuring the Data Communication Devices such as Routers, Switches, Hubs, Terminal servers and Troubleshooting LAN and First Level WAN Related Problems.
• Worked with systems support team to define, architect and maintain highly available production systems.
• Self-motivated, Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments, able to set effective priorities to achieve immediate and long-term goals and meet operational deadlines. Able to work independently and as team member.

TECHNICAL SKILLS

Operating Systems: Cent OS, RHEL 7.x,6.x/5.x, Fedora, SUSE Ubuntu, Windowsfamily, MSDos, Mac OSX, Netapp DATA ONTAP (7.3, 8.1), VMWARE ESX/ESXi.

Languages: Shell scripting, Bash, HTML

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, HTTP/HTTPS, CIFS, Cisco Routers / Switches and LAN

Backup: IBM Tivoli Storage Manager, VERITAS NetBackup 6.5, Replication manager, Recover point and VM ware

Applications: Tivoli (TSM), VERITAS Volume Manager and Symantec NetBackup

Storage Technologies: RAID (0,1), LVM, FC, SCSI, iSCSI, Fiber channel, FCoE, SAS, Multi pathing, Backup and recovery, Veritas Volume manager, Netapp storage

Web Technologies: Apache 2.0, Tomcat, WebLogic 8.1/10

PROFESSIONAL EXPERIENCE

Confidential, NY

Linux Admin

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 5/6, Cent OS 6.4 operating systems.
• Experience in BEA WebLogic Application server administration under heterogeneous environments like UNIX, RHEL.
• Extensively worked on Apache http Server, Apache Tomcat Server as administrator for Server Installations, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and network using PS, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Scheduling the jobs by creating Cron jobs on Linux.
• Perform operational tasks and activities e.g. monitoring log files, performance tuning and migration between environments.
• Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
• Troubleshooting and configuration of Local and Network based printers. User, Group Administration and Advanced File Permissions.
• Maintain security for the networked environment while allowing users to access all data and software remotely.
• Experience working on web applications like Apache, HTTP headers, Load balancing, DNS, DHCP.
• Responsible for monitoring and working on problem tickets (BMC Remedy). Following it up with business and technical teams, and ensuring the problem is successfully resolved.
• Responsible for documenting the issue, cause and resolution. Have been the on-call person for the application, worked with the appropriate team members to bring the issue and get a resolution.

Environment: RHEL 6.x/5.x, Apache, Logical &Veritas Volume Manager, Veritas net backup 3.x, VM ESX 4.x/3.x,VmWare vSphere, Svm.

Confidential, NY

Linux Admin

Responsibilities:

• Installation/configuration of Redhat 5/6 using Kickstart Server and Solaris 10 using Jumpstart
• Performing Post Build activities like Setting up Backup interface/ NIC bonding/ Loading additional Packages/ joining the server to Active Directory, etc.
• Worked with EMC SAN to acquire storage and setting up Veritas/LVM file-systems.
• Creating manifests and classes in Puppet for automation
• Responsible for redesigning of network configuration and specify deploy and configure hardware to reduce latency, increase bandwidth, improve reliability, simplify administration, eliminate many existing problems, enhance security, and facilitate deployment automation.
• Responsible for setting up and managing Kickstart environments
• Installed/Configured the Web logic server; Managed tuning and performance of high profile applications running on them.
• Provided technical support and expertise in the design, development and process of software development tools based on the systems environment
• Developed Cron jobs and Shell Scripts for automating administration tasks like file system management, process management, Server reboots etc.

Environment: Apache, Logical & Veritas Volume Manager, Veritas net backup 3.x, VM ESX 4.x/3.x,VmWare vSphere, Svm.

Confidential

Linux Administrator

Responsibilities:

• Applying OS patch and upgrade in a multi-platform (RedHat/Ubuntu/Windows) on a regular scheduled bases
• Setup and maintained NFS and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat/UNIX hosts.
• Configuration and administration of LDAP, NFS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments.
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Deployed RedHat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Install and configure DHCP, DNS, web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on Red Hat Enterprise Linux servers
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Worked on Web servers; Tomcat 3.x & Apache Server 2.x/1.x
• Linux kernel, memory upgrades and swaps area and performed Red Hat Linux Kick start installations
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell and Perl scripts.
• Network trouble-shooting using ‘netstat’, 'ifconfig' and 'tcpdump' etc.
• Configuring IP connectivity, routing, checkpoint firewall and network interfaces. Also maintaining network connectivity of servers.
• Implemented Network File System (NFS) for file sharing and network installation
• Implementation of Samba to help printing and file sharing in the mixed Environment
• Day to Day activities included handling Security issues like stale UNIX account Cleanups, 90 day password changes, setting max age and min age, creating a list of umask permission for various users and troubleshooting, Patching, Upgrades and Back-ups when required
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Environment: Red Hat Enterprise Linux 6.x, 5.x, Ubuntu, Centos, VERITAS Cluster Server, Veritas Volume Manager, MS Windows 2008 server.

Confidential

Linux System Analyst

Responsibilities:

• Creating and managing of user accounts, entitlements and process monitoring in Redhat Linux.
• Setting up user and group login ID’s, printing parameters, network configuration, user and group quota.
• Useradministrationand management on Solaris andLinuxoperating systems
• Managing User Accounts involves creating new User accounts and Groups, setting up a user environment, changing passwords, locking and deleting accounts,administrationof Initialization files, changing default permissions, setting access control lists
• Installation of software packages and checking the integrity of the installed packages
• Configuring and administering NFS server and clients and editing auto-mounting mapping as per system/user requirements.
• Creating new file systems and managing various file systems like UFS, VXFS.
• Perform volume management tasks, RAID levels using VERITAS volume manager, Solaris volume manager and logical volume manager (LVM).
• Reviewing system logs for errors and setting up cron jobs for file system backups.
• Memory and Swap Management, Software installation and management.
• Implementing backup polices and monitoring backup jobs.
• Weekly & periodically changes implementation and quarterly power down maintenance (Patching, Upgrading, Reboot development servers on request of client).
• Coordinating with Application & Storage Team for Application Issues.
• Server’s health Monitoring and Alerting forLinux.

Environment: RHEL 6.x/5.x, Apache, Logical &Veritas Volume Manager, Veritas net backup 5.x/6.0, VM ESX 4.x/3.x,VmWare vSphere, Svm