SUMMARY:

• 7+ years of experience specialized in System Administration working on RedHat Linux, SUSE Linux, AIX, VMware, Oracle Enterprise Linux and Windows environments.
• Experience in Installation, Configuration, Backup, Recovery, and Installing, upgrading and configuring RedHat Linux 3.x, 4.x, 5.x and 6.x using Kick start Servers and Interactive Installation.
• Involved in Installing Jenkins on a Linux machine and created a master and slave configuration to implement multiple parallel builds through a build farm.
• Experience installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Supporting users with Active Directory/ Network problems via phone and on - site Provided VOIP user support
• Modification of Active Directory Schema and OU's
• Managing Active Directory.
• Experience in supporting Windows Cluster server running 2-4 nodes on Windows 2003/2008 & 2012 supporting applications like web servers, SharePoint and Active Directory environment
• Strong Experience on Migrating from Windows 20 R2 environments.
• Implementation of Windows 2008/2012 domain architecture.
• Installing and Configuring Windows 2003/2008 Servers
• Deployed RDSH in Windows 2008 and Windows 2012 server versions.
• Worked over RDSH in updating operating systems from Windows .
• Involved in built and deploy the Windows XP and Windows 7 golden image for the VDI environment.
• Extensive experience with Windows Server … OS's.
• Patching Windows servers through WSUS.
• Rebuild of Windows 2000/2003 Active Directory domain controllers integrated DNS & DHCP
• Implementation of Windows 2008 Application Publishing to provide remote users.
• Build, Managed, monitored, and troubleshoot over 500 of Windows servers.
• Perform multiplatform Server builds on VMware, which include Windows Server (2008, 2012 ), rhel 06/07
• Responsible for assigning hostnames, static IP addresses, default gateway addresses and DNS addresses to Windows 2008/2012 server, solaris10/linux(06) Servers so as to introduce them to the network.
• Use the "dcpromo" tool to configure DNS, Active Directory as well as to promote standard Windows 2008 servers to domain controllers
• Windows 7, 8 and 10 NOS imaging configurations and software deployment. Create new User accounts and profile on Windows NOS and Home base system. Troubleshoot and resolve OS, application, malware desktop related issues on various Windows NOS.
• Configure Windows NOS clients to join the domain as well as configure file and print sharing on some Windows NOS to enable resource sharing.
• Build, install and configure Unix (Solaris 10), Linux (Centos and Red Hat 6,7), Windows 2007, 2008 servers and Operating System.
• Responsible for the analysis and recommendations for policies and procedures regarding Active Directory, Exchange, backup and disaster recovery.
• Planning and migration of remote domains into Sodexo's primary Active Directory site.
• Backup and disaster recovery strategy and implementation for Active Directory and messaging.
• Lead architect for Microsoft Exchange, Active Directory and VMWare virtual infrastructure designs.
• Architected IT infrastructure and systems used by the corporation, including the design and implementation of Cisco-based network and corporate telephony infrastructure, Windows Active Directory, corporate email systems (Microsoft Exchange, Sendmail and Qmail).
• Expertise in Migration Using Quest Migration Manager Tool for Active Directory.
• IT System Administrator skilled in multiplatform VMware, Linux, Windows environments with hands on expertise in system and networking integration.
• Expertise in administration of VMware Workstation, ESX/ESXi servers, VMware vSphere and Windows Servers 2008/ 2008R R2.
• Installation, configuration, Administration Virtual Center Server, VMware View, Disaster Recovery, Plate Spin, vMotion, P2V, P2P, V2V, VMware Update Manager.
• Knowledge on Linux environment and VMware vblock.
• Experience in Configuring Networking on Standard vSwitch, Distributed vSwitch.
• Experience in Configuring VMware DRS Rules and VMware HA on Clusters in Virtual Center.
• Capable of administering / configuring iSCSI, NAS and NFS storages. Familiar with RAID concept.
• Expert in maintaining Business Continuity and performing Disaster Recovery (DR) using VMware Site Recovery Manager (SRM)
• Created Raid Groups, Storage Groups, LUNs and assigned LUNs to Windows and VMware hosts. using of RedHat Satellite and kickstarting configuration of RedHat to fit security compliance using STIG, CRISP, SCAP
• Responsible for installing, configuring, and maintaining RedHat LINUX operating systems
• Linux systems administration skills with emphasis on RedHat Enterprise Linux or Oracle Enterprise Linux
• Was working on integrating Puppet with new REDHAT satellite server.
• Primary responsibilities are the security, monitoring, capacity planning, upgrades and maintenance of our Linux and network infrastructure. I support 3 Sun, 3 RedHat servers (test, development and production servers).
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Experience installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Responsible for creating and managing user accounts, security, rights, disk space and process monitoring in CentOS and RedHat Linux.
• Installed RedHat Linux using kickstart.
• Migrate AIX 6.1applications to RedHat Linux 7.4
• Manage deployment process, build new releases for AIX 6.1 and 7.1, RedHat 5 & 6.5
• IT System Administrator skilled in multiplatform VMware, Linux, Windows environments with hands on expertise in system and networking integration.
• Knowledge on Linux environment and VMware vblock.
• Experience in Creation and managing user accounts, security, rights, disk space, quotas and process monitoring in RedHat Linux.
• Experience in Linux/Unix environment (RHEL, CentOS, and SLES)
• Experienced with Disk Management Tools such as SVM, ZFS, VxVM in Solaris, and LVM in RHEL.

TECHNICAL SKILLS:

Operating Systems: Red Hat Linux Centos 5.x/6.x/7.0, Oracle Linux Lion 5.5, Fedora and Debain

WORK EXPERIENCE:

Sr Linux/ VMware/RedHat// Windows system Engineer

Confidential

Responsibilities:

• Designed, Built, Configured and Troubleshot Linux (Redhat) VMware, and Solaris systems.
• Performed system administration activities using used NFS, NIS, DHCP, FTP, Send mail, and Telnet for Linux.
• Performed installation, configuration and maintenance of Red Hat Linux4.x, 5.x, 6.x.
• Provided 24x7 System Administration support for (Red Hat) Linux servers and resolved trouble tickets on shift rotation basis.
• Windows 7, 8 and 10 NOS imaging configurations and software deployment. Create new User accounts and profile on Windows NOS and Home base system. Troubleshoot and resolve OS, application, malware desktop related issues on various Windows NOS.
• Configure Windows NOS clients to join the domain as well as configure file and print sharing on some Windows NOS to enable resource sharing.
• Build, install and configure Unix (Solaris 10), Linux (Centos and Red Hat 6,7), Windows 2007, 2008 servers and Operating System.
• Configure Kickstart and Jumpstart for advanced installations.
• Introducing Solaris 10,11, Centos and RedHat 6,7 servers to the network including Windows 2007 and 2008 servers
• Setup Domain and Active Directory on a Windows 2008 server; install and configure a SAMBA server on Solaris 10 and mapping to the Windows 2008 server
• Perform multiplatform volume management using SVM, LVM, ZFS volume manager, NAS, and VERITAS volume manager; installed and configured a LAN wide NAS (Free NAS) used for creating LUNs and attaching to Windows 2008 servers, Solaris10 Lunix 6.4 servers using iSCSi.
• Professional experience in Configuring and administering NFS, DNS, CIFS, FTP, SFTP, ROBOCOPY and LDAP on Windows server … server environment
• Expertise in Installation and configuration of Microsoft Windows Vista, XP, 2000 server, Professional, Windows … Servers
• Updating/Patching Linux, Windows Virtual Machine in VMware VM's
• Maintaining and updating the domain controllers and RODC in Windows server 2008
• Configuring and administering NFS, DNS, CIFS, FTP, SFTP, Robocopy and LDAP on Windows server 2003/2008/2012 server environment
• Configure Windows Multipathing policies to configure Multipathed LUN's from NetApp FAS Solutions 6240,6080's, 3270's
• Assist in P2V conversion of Windows 2003 and Windows 2008 server editions using enterprise VMware converter and also installed the VMware tools on that machines
• Installing and configuring Hyper-V on Windows Server 2008 R2
• Installed and configured Oracle on Unix and Windows 2000/2003 servers in the test, development and production environment.
• Created users, manage user permissions, maintain User & File System quota on RedHat Linux.
• Expertise in Migration Using Quest Migration Manager Tool for Active Directory.
• Experience on working with Integration of UNIX and LINUXwith Active Directory using Centrify Tool Provided 24x7 on call Support for Production Environments.
• Assisted in designing, implementing and evaluating applications, systems and utilities relevant to Active Directory services
• Experience in managing Active Directory Domain Controllers, DNS and DHCP Servers.
• Handy Experience on troubleshooting Application Authentication issues in Active Directory Multi domain Environment.
• Active Directory Engineer/Enterprise Administrator for large multi-national corporation
• Responsible for third level engineering of Windows Active Directory Domain Services based on Server 2012 R2
• Migrated the corporate Active Directory from Server 2008 to Server 2012 R2
• Experience with VDI (Virtual Desktop Infrastructure) VMware View in an enterprise environment.
• Hands on experience on P2P, P2V, V2V Migration of Machines from one datacenter to another datacenter using migration tools like Plate spin, Double take and VMware Converter.
• Build, Install and Configure Enterprise Virtualization using VMware Products and Solutions.
• Rack, Stack and Configuring Cisco UCS B and C Series, HP Enclosures, HP Proliant BL/DL Hardware.
• Configured automated VM migrations using automated scripts in PowerShell. Standardized network cable runs for VMware hosts across multiple data center.
• Extensively worked on vMotion, Storage vMotion, VMware Mirage and Patch management and upgrades using VMware update manager. Experience in configuring VMware standard vSwitch & dvSwitch.
• End to End setup and administration of VMware ESXi 6.0/6.5.
• Patch VMware ESXi 6.0 servers using VMware Update Manager Server.
• Experience in creating Golden Image/templates, Cloning, Snapshots and provisioning new Virtual Machines.
• Knowledge VMware vBlock and NSX technologies.
• Managed various file system and added Disk Space on the Linux and UNIX servers.
• Updated and installed packages and patches for all the servers.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Creating Hardware Raid and LVM's and administering them in RedHat Linux.
• Troubleshooting hardware and software failures on Linux and Solaris and logging cases with RedHat , Oracle Solaris and Symantec support for hardware and software related issues
• Configuring RedHat systems over the network, implement automated tasks through cronjobs, resolving tickets according to the priority basis.
• Installation of patches and packages using RPM and yum in RedHat Linux.
• Setup, configured, and debugged network configurations for RedHat servers and workstations
• Installed RedHat Linux using kickstart.
• Migrate Redhat Linux applications to Debain Linux.
• Manage deployment process, build new releases for Debain and RedHat 5 & 6.5
• Performed installation, configuration and tuning of RHEL servers.
• Configured RedHat Satellite Server for patching and configuring servers to update patches from the satellite server.
• Implementation and administration of VMware ESXi, vCenter for running RedHat Linux Servers on Production and Development.
• Installed RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• ConfiguredDNS, DHCP, NIS, NFS in RedHat Enterprise Linux 5.x/6. x.
• Administered packages using RPM/ YUM on Red Hat Linux and maintaining patching on Solaris servers.
• Migrated servers between ESX hosts and created cloned Linux Virtual Machines, templates using VMware Virtual Client .
• Configured and monitored periodic Disaster Recovery (DR) test activities.

Environment: RedHat Enterprise, Debain Linux 4/5/6; SuSe Linux Enterprise Server (SLES) 9/10; VMWARE; DELL PowerEdge 1650, 2850, 2950, 6400; Sun SPARC workstations (A21, A22, A70, A89) and Servers E450, E3000, E3500; HP-Proliant DL 360G5; NFS; NIS; DNS; Shell/PERL scripts; SAN; Tivoli; Openstack; Nagios; SVM; LVM

Linux/ VMware/RedHat/ Windows System Administrator

Confidential, IL

Responsibilities:

• Support for Linux, VMware problems assigned by client operations.
• Worked on migrating AIX to RedHat Linux 6 and 7.
• Worked on installing applications on AIX and RedHat .
• Administration of RHEL 5, 6, 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting on both Pseries and VMware virtualization systems
• Creating, cloning Linux Virtual Machines, templates using VMware vsphere client 5 and migrating servers between ESXi hosts.
• Thorough understanding of advanced RHEL Linux capabilities (clustering, load balancing, etc.)
• Creation and management of Virtual Machines, Installing VMware tools, creating templates, cloning, deploy Virtual Machines from Templates.
• Administration of Active Directory, Managing and Monitoring Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS) in Windows 2008 environment.
• Monitor, analyze, identify and troubleshoot issues, upgrade of Virtual infrastructure products - VMware vSphere sutie 5.0 including VMware vCenter Server, VMware ESX/ESXi clusters, Virtual machines and templates.
• Implementing Group Policy, Managing and Monitoring Dynamic Host Configuration Protocol (DHCP)
• Expertise in Installation and configuration of Microsoft Windows Vista, XP, 2000 server, Professional, Windows … Servers
• Updating/Patching Linux, Windows Virtual Machine in VMware VM's
• Maintaining and updating the domain controllers and RODC in Windows server 2008
• Configuring and administering NFS, DNS, CIFS, FTP, SFTP, Robocopy and LDAP on Windows server 2003/2008/2012 server environment
• Configure Windows Multipathing policies to configure Multipathed LUN's from NetApp FAS Solutions 6240,6080's, 3270's
• Assist in P2V conversion of Windows 2003 and Windows 2008 server editions using enterprise VMware converter and also installed the VMware tools on that machines
• Installing and configuring Hyper-V on Windows Server 2008 R2
• Installed and configured Oracle on Unix and Windows 2000/2003 servers in the test, development and production environment.
• Deployed Oracle Critical Patch update for the Windows and Unix on Oracle test, production and Disaster Recovery (DRF) servers.
• Maintained and supported Oracle front end applications (Forms and Reports) on Windows Test and Production environments
• Performed back up (hot, cold and export backups) of the Oracle databases on Windows and Unix servers, performed database restore and recovery on Oracle databases as necessary and or requested.
• Managed Oracle database User accounts on Windows and Unix servers
• Setting up SAMBA & NFS servers, to enable Windows & UNIX clients to communicate with Linux without the need of additional software on the Windows side, such as NFS clients
• Migrated the corporate Active Directory from Server 2008 to Server 2012 R2
• Server 2012 Active Directory development testing
• Server 2012 Active Directory deployment to production
• Manage Active Directory integrated DNS zones
• Configure constrained delegation in Active Directory for Kerberos enabled applications
• Complete Active Directory AD health check with MS Engineer to fix more than 100 issues in companywide forest, modify Active Directory topology to enhance replication and authentication operations.
• Expertise in Active Directory design and support (GPOs, AD Schema, OUs, LDAP, Sites, Replication, etc.)
• Expertise in deployment and troubleshooting of Windows 2008 and 2012 R2Domain Controllers in Active Directory.
• Managing and monitoring Domain Name System (DNS).
• Experience in configuring VMware DRS Rules and VMware HA on Clusters in Virtual Center.
• Backup and restore of VMware host server configuration, Virtual Machine backup and snapshot.
• Installing and Implementation of VMware ESXi 5.0 host servers with VMware vSphere Client, vSphere CLI and also Configured HBAs and iSCSI SAN storage.
• Installing and configuring VMware Virtual Center servers and VMware vCenter Appliance.
• Managed VMware ESXi hosts using vSphere client and Web client.
• Created Virtual Machines for member servers which host services like IIS, DNS and DHCP.
• Installed VMware Converter to convert Physical to Virtual (P2V) and Virtual to Virtual (V2V) machines.
• Keep Virtual hardware and VMware tools updated to keep a healthy environment.
• Knowledge of RHEL Linux internals (e.g. Kernel)
• Knowledge/Awareness of popular applications/middleware that can execute within the RHEL Linux environment (e.g Oracle, MQ series, Websphere, etc)
• Knowledge and experience in RHEL Linux High-Performance computing including parallel environments, and batch schedulers.
• RHEL installation and modifications, account creation and maintenance, environment configuration, OS patches, etc.
• Experienced with physical and virtualized RHEL Linux systems including LPARs
• Offloaded the MySQL Nagios database to a separate RHEL 6 server to improve performance and stability, Update clinical applications and databases.
• Working and supporting the environment which consists of 600 + RHEL 6.x and 7.0 servers which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Monitoring RHEL 7/centos servers with command line monitoring tools such as top, htop, lsof, iostat, iotop, tcpdump, sysstat (SAR), Splunk and Nagios.
• Setting up LAMP STACK on RHEL/CENTOS6 servers: Apache web server, MYSQL Database server and PhpMyAdmin to be deployed in a production environment.
• Implementation and administration of VMware ESXi, vCenter for running RedHat Linux Servers on Production and Development.
• Installed RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• ConfiguredDNS, DHCP, NIS, NFS in RedHat Enterprise Linux 5.x/6. x.
• Configured RedHat Cluster and supported GFS files system.
• Problems & performance issues; installed latest patches for Linux and performed RedHat Linux Kernel Tuning.
• User Management, Disk Management, Storage Management and Permissions/IAM Management on Linux and AWS ECS, EFS, EBS, S3, Route53, Auto-Scaling and ELB.
• Used Multi Factor Authentication to secure the AWS Account.
• Installed and configuredRedHat Linux 5.x/6.x using Kick Start server.
• Installation and configuration ESX hosts. Making new virtual machines, with Linux RedHat server, making templates, cloning VMs using VMware Virtual Client.
• Build, Install and Configure Enterprise Virtualization using VMware Products and Solutions.
• Rack, Stack and Configuring Cisco UCS B and C Series, HP Enclosures, HP Proliant BL/DL Hardware.
• Configured automated VM migrations using automated scripts in PowerShell. Standardized network cable runs for VMware hosts across multiple data center.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Deployed RDSH in Windows 2008 and Windows 2012 server versions.
• Worked over RDSH in updating operating systems from Windows .
• Involved in built and deploy the Windows XP and Windows 7 golden image for the VDI environment.
• Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager.
• Installed PXE servers, KickStart configurations for automatic Linux Installation.
• Performed Installation, configuration and Administration of VERITAS Volume Manager (VCS)
• Implemented virtualization using VMware in RedHat and CentOS on HP-DL585 and IBM-z/VM series.
• Performed Data Center migration from AIX to Linux and 5.x to 6.4 Linux upgrade.
• Used UNIX/Linux shell scripting to automate system administration tasks, system backup/restore management and user account management.

Environment: AIX 5x, 6x, 7x, IBM Power7, Power6 and Power5, VIOs, NPIV, RedHat LINUX 5.5/6.3, Ubuntu, Windows, Oracle, DB2, Sun Solaris 9/10, SQLserver, Korn, Oracle RAC, C Shell, Yield Book, Razor, Vsphere, HMC, Tibco, HACMP, GPFS, VMware, CA Spectrum, CA EHealth, Netapp, TSM, Symantec Netbackup, Hitachi VSP, Hitachi Command Suite, Hitachi storage navigator, HUR, SI, TC, TSM, CSM, IBM XIV, SAN SVC, NAS, Autosys, TPM V7.1, CA Service Desk, Apache Webserver, MQ, Websphere Application Server & UNIX shell scripting.