SUMMARY:

• Experience on Red Hat Enterprise Linux, oracle Linux,Solaris, Ubuntu,AIX, SUSE,Fedora Linux and Unix.
• Experience and Familiar with Virtualization technologies like installing, configuring, administering VMware ESX/ESXi and Citrix Xen Server/openstack. Created and managed VMs (virtual server) and also involved in the maintenance of the virtual server.
• Understanding of networking concepts, (IE. Configuration of networks, router configuration and wireless security, TCP/IP, VPN, Content Filtering, VLANs, and routing in LAN/WAN, Ethernet Port, Patch Panel and wireless networks.)
• Understanding of networking fundamentals and network security. Installation, Configuration and managing Firewalls like Fortinet, ISA with content filtering, Anti - Spam, Web filtering, NAT, Application Publishing to public IP, Port Forwarding, log analyzing with Syslog Server.
• Experienced in installation, configuration, design and ongoing maintenance of Cisco router and switches.
• Actively involved in configuring puppet open source with several third parties applications and creating windows modules integrating Powershell.
• Build approved Linux projects using cloud forms in case of VMs or use Opsware to build physical servers.
• Experience with x86 / x64 Intel, HP, IBM & Dell hardware like rack-mounted servers, tower servers, desktop, laptop and other peripherals.
• Good knowledge in product deployment in servers, mail servers, monitoring tools & shell scripts, networking, SQL/MySQL.
• Have Hands On experience on all the popular LDAP Servers like Tivoli Directory Server, Sunone LDAP, and Microsoft Active Directory, ADAM.
• Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP, LDAP, LAMP web service environment.
• Experience in using various network protocols like HTTP, UDP, FTP, TCP/IP, and SMTP.
• Experience in configuring SSL security for the HTTP servers and the plugin
• Experience in Server monitoring, capacity planning, application monitoring with the help of Tivoli, HP insight, Nagios, Cacti, Zabbix.
• Good experience in administration, configuration and troubleshooting of high end disk storage systems such as EMC CLARiiON and VMAX/Symmetrix DMX in mission critical production environment.
• Handling day-to-day User Administration tasks like adding, deleting and modifying user data and documenting all user data in a centralized location.
• Experienced in working with management tools of Chef, Puppet and scheduled many automated tasks through AT, Cron & Anacron .
• Performance tuning of Linux machines in the environment by kernel parameter tuning, identifying process that hog the system resources and containing them.
• Experience working in customizing the Kickstart and Jumpstart scripts to automate the installation of various servers used for various internal projects.
• Responsible for Backup and Recovery operations of various servers using VERITAS Net Backup.
• Working Knowledge on using and developing Shell, Perl and python scripts used to automate day to day administrative tasks.
• Responsible for OS maintenance activities like upgrading the OS, updating the services and third party software’s.
• Experience in installation and configuration of Web Application servers like Apache, Tomcat and Weblogic.
• Have tested various Linux Environments in the Development/Test Stages to help create a better standardized environment and resolutions of any problems if any occurred.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat, CENTOS & SUSE), Solaris 10/9/8, HP-UX 11.0, 11.11, IBM AIX (4.3/5.x), HPUX11i V1, V2 & V3, VMWare ESX, SLES 8,9,10 & 11, Windows NT /2000/2003, MAC OS X 8/9.x/10.x.

Hardware: M5000, M8000, T5220, T5240 Sun E15K, E25K, Sun Fire 6800/4900/3800, Sun Fire 490/280, v880/v890, Sun Enterprise Servers E6500, E4500, E3500, Work Group Servers E450, E420, E250, E220, Netra 1405, Netra X1, Ultra 80, 60, 30, 10, 5, 2, 1, Intel Servers

Networking: TCP/IP, NIS, NFS, FTP, DNS, DHCP, Samba, Apache, SMTP, SSH, IP-Tables

WEB Technologies: Tomcat, APACHE 2.x, 3.x, Jboss, Web Logic (8/9/10) & Web Sphere 4.0/5.0

Programming, Scripting Language & Databases: RDBMS, MySQL, Oracle, Sybase, MSSQL, C, UNIX Bash & Shell Scripting, Perl Scripting, Python, Ruby, HTML, VB

Backup Management: Veritas Netbackup 4.x/5.x/6.x, Ufsdump, Ufsrestore, TAR, cpio, dd, Tivoli, Symantec Netbackup 7.x

Third Party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP Service Guard, Sun Cluster, EMC Storage, RAID Technologies, SSL, Splunk, Puppet, Jenkins, GIT,Microsoft Exchange

Protocols: TCP/IP, UDP RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET

PROFESSIONAL EXPERIENCE:

Confidential, Moundsview, MN

System Admin

Responsibilities:

• Installation and configuration of Red Hat Linux, Suse,Solaris and Unix new server builds as well as during the upgrade situations.
• Experience with VMware vSphere ESXi 5.5
• Deploying Solaris, RedHat Linux, and windows servers in fast paced environment.
• Creating the template for the Linux those are used for deploying for the environments.
• System audit report like no. of logins, success & failures.
• Remotely coping files using sftp, ftp, Zfs,scp, winscp, and FileZilla.
• Created user roles and groups for securing the resources using local operating System authentication.
• Performing capacity analysis, monitoring and controlling disk space usage on systems
• Used Puppet, chef edition for configuration management.
• Wrote shell scripting to automate task all across servers through Puppet.
• Created and modified syslog / rsyslog system monitors for Solaris and LAMP stack systems (RedHat based)
• Involved in administrating Windows 2008/2012 with Powershell scripting
• Wrote Puppet modules for installing and managing upgrading the linux kernel, managing persistent SSH tunnels
• Installed, configured WebSphere Application Server 6.0.
• Configured LDAP Server and LDAP Client on Linux and windows machines for authorization and authentication.
• Created continuous integration system using SVN, ANT, Jenkins, Chef, Puppet full automation
• Deployed/Configured Web servers (IIS, Apache) and have strong knowledge in Internet Information Services (7.0/7.5/8.0) Administration.
• Install, configure, test, and maintain Tivoli Identity Manager and also adapters which includes provisioning services, and provisioning policies for target systems.
• Configure and maintain remote user authentication service (nis, nis+, LDAP)
• Maintains a Windows Server 2008/2012 Active Directory environment.
• Actively involved in configuring puppet,chef open source with several third parties applications and creating windows modules integrating Powershell.
• Created and modified Veritas Cluster Service Groups and managed switchover from node to node and just as importantly, from interstate primary and DR sites
• Configuration of Clusters using VERITAS Cluster Services and performing Veritas netbackup(Symantec netbackup) in Solaris and Linux
• Installation and Configuration of other IAM components - IBM Directory Server 6.1, Tivoli Access Manager Policy Server, Access Manager Authorization Server, Tivoli Access Manager WebSEAL Server, Web Sphere Application Server (WAS 6.1 ), IBM UDB DB2
• Used Jenkins, Build forge for Continuous Integration and deployment into Tomcat Application Server.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Active Directory and Operating System account management With NTFS permissions.
• Dell TPAM Account Priviledge Access Configuration and Implementation
• Install and configure DHCP, DNS, LDAP,web (Apache, IIS),Firewall(windows) mail (SMTP, IMAP, POP3), and file servers on servers.
• Experience supporting single sign on authentication using LDAP&TAM on LINUX environment.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and Filesystems.
• Install and configure packages for the server they are needed by vendors.
• Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) UNIX based shell, Perl.
• Experience in implementing LDAP security models. Utilized Resource Analyzer and Log Analyzer for performance testing and troubleshooting and Knowledge on managing LDAP Policy Store. experience with Active Directory administration, GPO's, DHCP, DNS, IP, Sub Nets, VPNs, VLAN, Network routing, Firewalls, web filters, LAN/WAN switching and Backup & Recovery, File & Print Server, IIS (Web Server), FTP,SMTP and TCP/IP networking.
• Sharing Folders, Planning and Assigning NTFS Permissions and System Policies.
• Manage logical Volume manager on Red hat Servers.
• Experience in installing, integrating, tuning and troubleshooting Htpp, Apache and Tomcat application server.
• Scheduled jobs and automated processes using CRON, AT, Puppet and Ansible.
• Taking backup using tar and recovering during the data loss.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VxVM and SVM filesystems along with NFS.
• Migrated centrify configuration to samba winbind to authorize and authenticate users of the domain to have access to the servers.
• Performed application installation and management on Linux servers for applications like JBoss 4.2.x, 5.x, Oracle
• Troubleshooting of day to day system and user problems various Servers on windows and Linux both.

Environment: SUSE, RHEL 5.x/6.x, Solaris 10,11, Unix, Windows Servers 2k8r2/2012, ESXI 5.1/5.5, VMware VCenter & Vsphere, Puppet, Veritas, LVM, NFS, NIS, DIG,EMC, RAC,netstat, websphere,Oracle 11g,12c, lookup, tcp, dump,BMC, Bash, Shell, Tomcat and Apache

Confidential, EAGAN, MN

System Admin

Responsibilities:

• Implemented RedHat Clustering for Apache Web Servers, Puppet, Git, SVN.
• Experience in vSphere 4.1, 5.0, 5.1 /ESXi 4.1, 5.0, 5.1deployment and management.
• Day to day system administration to support 100+ Server in Production in development environments.
• Created, modified and updated the OU in Active Directory.
• Addition of users, groups and computers in Active Directory.
• Primary support to all kind of issues for All of Unix and Linux
• Worked with Redhat for finding root cause on panic issues
• Created and modified Veritas Cluster Service Groups and managed switchover from node to node and just as importantly, from interstate primary and DR sites
• Involved in standardizing Splunk forwarder deployment, configuration and maintenance across UNIX and Windows platforms.
• Wrote monitoring applications in Korn shell and Perl for mixed RedHat Linux (LAMP), AIX, and Solaris environment
• Implement local/remote user authentication service (nis, LDAP)
• Server builds with Windows 2008 R2 and IIS and AD.
• Experience in implementing LDAP security models. Utilized Resource Analyzer and Log Analyzer for performance testing and troubleshooting and Knowledge on managing LDAP Policy Store.
• Prepared, arranged and tested Splunk search strings and operational strings.
• Responsible to check the Splunk logs for web server so as to avoid server down time during production.
• Utilized BMC TrueSite Capacity Optimization for server optimization and capacity planning.
• Experience in Microsoft Active Directory and Domain Administration, Network Administration (Firewall configurations, security, DNS and DHCP).
• Utilize Tivoli identity manager to create & administer end user accounts, role based access controls (RBAC), password management etc.
• Configuration of Clusters using VERITAS Cluster Services in Solaris and Linux.
• Installation and configuration of SUDO package accomplished successfully across various UNIX platforms.
• Limiting user account privileges using SUDOERS.
• Openstack deployment experience on RHEL using XEN Hypervisor.
• Experience with middleware applications, like websphere, jboss, tomcat,Apache
• Implementing appropriate permissions for files and folders and Managing Users and Groups
• Troubleshooting of day to day system and user problems various Servers on different platforms.
• Experienced in creation and maintenance of user accounts and active directory
• Created hourly, nightly, weekly and monthly snapshots to maintain online backup to recover from accidental deletions, corruptions or modifications of the data.
• Write Perl /Shell/Bash scripts for task automation such as managing systems routine backup, scheduling jobs and enabling at/cron jobs.
• Installing, configuring and administering Jenkins CI tool on Linux machines
• Creating Zones, containers, LDOMs on Unix servers, creating zpools, ZFS file system installing Oracle, Java based applications on them.
• Obtained basic understanding of connectivity issues using tools such as TCPdump and Wireshark
• Servers support included NFS, NTFS,NIS, LDAP, NTP, FTP, users setup/troubleshooting.
• Installed OS patch clusters and 3rd party application patches
• Monitoring Disk space, adjust VXVM Configuration& add space as and when needed
• Working knowledge of Remedy ticketing system.
• Worked on the configuration of server monitoring tool like Nagios, Gangila.
• Monitoring and install or updates patch software’s, firmware, and security patches for all applications in installed infrastructure.
• Creation and Maintenance of User Accounts file systems and successfully created logins IDs on large number of servers
• Assisted Oracle DBA team with migration DB from RHEL to Linux RAC environment.
• Administrated DHCP, DNS and Samba services in Linux.
• Configuration, Administration and maintenance of NFS, DNS, NIS on Linux Servers.
• Working on evaluating new hardware and software’s.
• Responsible in building and startup shell scripts, managing the automation of CRON jobs
• Responsible production support of LDAP, Domain users, Users and groups and given appropriate permissions, shares and privilege to access LAN and Domain environment.
• Manage Virtual Machine Clones and Templates, plan and implement VMware Fault Tolerance
• Installed and implemented Manage Engine monitoring application and configured SNMP and WMI on Servers and other network devices for reporting and alerts notifications.
• Installed and Tested VMware Site Recovery Manager (SRM 2.0/4.0) for the disaster recovery and managed recovery plans
• Participated in the migration planning, developing, testing and moving the migration process onto full-fledged production network

Environment: RHEL 5, IBM AIX, ESX 4.x, kickstart, usfdump, NFS,VERITAS Volume Manager, Web Sphere, Web Logic, Jboss, Tomcat, DNS, netstat, nslookup, DIG, SMTP, MYSQL, Oracle 11g,12c, samba Winbind, LAMP, Kron, Bash.

Confidential,Tx

Linux Administrator

Responsibilities:

• Administration and maintenance of Red hat Linux
• Worked on Oracle and MySqL Databases and performed performance tuning and troubleshooting.
• Worked on User administration setup, maintaining account, Monitor system performance.
• Activities include user administration; startup and shutdown scripts; crontab, file system maintenance, backup scripting and automation using Perl, shell scripting (bash, ksh) for Red Hat Linux systems.
• Experience in system Software installation and configuration of NFS shares, Auto-Mounter, DHCP and LDAP
• Experience with configuration management software like puppet and ansible
• Manage the entire lifecycle of Unix/ Linux servers opensource tools such as Opsware, Puppet, and Nagios.
• Manage logical Volume manager on Red hat Servers.
• Troubleshooting day-to-day server related issues and problems in terms of operating system, applications and network
• Creating policies, jobs in HP Opsware, deploying them on Linux, windows, Solaris servers.
• Experience in migrating old server to HP Blade system server.
• Configure RAID mirroring on Linux platform
• Maintained and monitoring System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues
• Configuration and Administration of Load balancers and F5's, taking servers in / out of rotation.
• Experience in installing, integrating, tuning and troubleshooting Apache and Tomcat application server.
• Performed application installation and management on Linux servers for applications like JBoss 4.2.x, 5.x, Oracle
• Managing IT department's LAMP stack and configuration management.
• Provided documentation, development and management of web products and interfaces for retail processing. Programmed user interfaces that combined System platform with LAMP.
• Configuring, administering and trouble shooting of NFS, AutoFS (Direct and Indirect Maps), NIS (master, slave and client) and DNS in multi-platform networks.
• Worked on the configuration of mail server using Send mail 8.10.x, 8.11.x.
• Installation of SAMBA 3.3.x server for interface between Linux servers and Windows servers to share files.
• Install and configure SSH to enable secure access to the servers.
• Modified the Linux kernel to add tracing probes for Configuration access tool.
• Environment, Command line, Current working directory, root directory, executed command.
• Experience in Shell scripting bash to automate system administration jobs

Enivornment: RHEL 4/5, Solaris 8/9, IBM AIX 4/5, AIX 4.x, Hitachi 9980v, ESX 4.x, kickstart, usfdump, NFS, VERITAS Volume Manager, Web Sphere,, Jboss, Tomcat, DNS, netstat, nslookup, DIG, SMTP, MYSQL, RDBMS, samba Winbind,, Kron, Bash.

Confidential

Linux Administrator

Responsibilities:

• Automated installation of Linux servers using Kickstart and Installation of Solaris using Flash, live upgrades and Jumpstart Servers.
• Knowledge in ALOM & ILOM.
• 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 Service Management Facility for enabling, disabling and also troubleshooting services in maintenance mode.
• Configuration of Clusters using VERITAS Cluster Services in Solaris and Linux.
• Experience with configuring and Installing Zones for running applications in different zones in Solaris.
• Modified Kernel parameters to improve the server performance in both Solaris and Linux.
• Providing Statistics on Hard Disk Usage.
• Backups of systems and restoration using Net Backup 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 for solving online operational issues.
• Experience with the Change Management tool for reporting and resolving issues.

Environnent: Solaris8, RedHat Enterprise Linux 4/5, Windows 2000, Sun SPARC Enterprise T5120/ T5220/ T5240, VERITAS Volume Manager/Cluster, SVM/LVM, VMware ESX Server, NFS, Samba, OpenLDAP, SQUID, Oracle 8i, bash, shell, bugzilla.

Confidential

Linux Administrator

Responsibilities:

• Installed, administration and maintenance of Red hat Linux
• Improve system performance by working with the development team to analyze, identify and resolve issues quickly.
• Ensure data recoverability by implementing system and application level backups.
• Performed various configurations which include networking and IPTables, resolving hostnames, SSH key less login.
• Managed CRONTAB jobs, batch processing and job scheduling.
• Software installation and maintenance.
• Security, users and groups administration.
• Networking service, performance, and resource monitoring.
• Managing Disk File Systems, Server Performance, Users Creation and Granting file access Permissions and RAID configurations.
• Support pre-production and production support teams in the analysis of critical services and assists with maintenance operations.
• Automate administration tasks through use of scripting and Job Scheduling using CRON.
• Performance tuning for high transaction and volumes data in mission critical environment.
• Setting up alert and level for MySQL (uptime, Users, Replication information, Alert based on different query).
• Estimate MySQL database capacities; develop methods for monitoring database capacity and usage.
• Develop and optimize physical design of MySQL database systems.
• Support in development and testing environment to measure the performance before deploying to the production.

Environment: RHEL., MYSQL, PHP, SHELL SCRIPT, APACHE, WORKBENCH, TOAD