SUMMARY:

• 10+ years of industrial experience as a Linux Administrator in system administration in Red Hat Enterprise Linux, Cent OS & Fedora and also Production Support of various applications in Red Hat Enterprise Linux, Ubuntu …, Sun Solaris … and Windows environment.
• Experience in Installation, Configuration, Upgrade, Patches, and performance tuning on UNIX and system software & hardware.
• Expertise in building Microsoft Windows2008 R2, 2008, 2003, 2000 servers using HP Smart Start, Array configurations, diagnosing server, Updating Firmware and PSP, application Software under multi - platform environments, deployment & monitoring physical Servers.
• Installed, configured and administered all: Windows Server 2012 R2: DNS Servers, DFS Servers
• Migrated all Windows2008 Domain Controllers to Windows2012 R2 Domain Controllers.
• Experience in Installing, configuring and maintaining the file sharing servers like Samba, NFS, FTP and also Web Sphere & Web Logic Application Servers, Nagios and Chef.
• Experienced in configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
• Worked on Active Directory Authentication
• Experience in Installing and configuring Apache/Tomcat/Java/MySQL.
• Worked on configuring the Linux machines through Kickstart (Red Hat Linux) program for Host and Network based Installations.
• Managing disk storage with Veritas Volume Manager 3.5/4.1 with Veritas File System (VxFS)
• Adding/expanding new storage to existing/new systems using LVM, VERITAS Volume management VXVM and Vxfs on Linux/SUN servers.
• Implemented day-to-day tasks in RedHat Linux, AIX and Solaris include upgrading packages, kernel, and drivers.
• Used infrastructure deployment, testing, change control, problem & access management tools like PAC2000, Remedy Access Management, DMAN (Deployment Management and Notification) and PTP (Project Tracking Portal)
• Expertise in creating DevOps strategy in a mix environment of Linux (RHEL, CENTOS) servers along with Amazon Web Services.
• Experience with OpenStack Services such as Compute, Network, Storage, Dashboard, Image, Identity, Monitoring and Orchestration Service.
• Ticketing Tool used BMC Remedy PAC2000. Worked on CR (Change Request), WR (Work Requests), and PR (Problem Tickets).
• Management done utilizing Puppet, Ansible, Centrify, and Powerbroker for automation and AD authentication.
• Maintains a GIT repository for our puppet modules and ansible plays.
• Develop and maintain configuration manuals, procedure manuals and standards for Jboss application servers
• Good troubleshooting skills on issues related to WebLogic, apache, tomcat, Networking, Database, UNIX and applications and worked with respective engineers to resolve them and provided RCA.
• Experience in Branching, Merging, Tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), GIT (GitHub, GitLab), Clear case, Harvest and VSS.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and Solaris and AIX.
• Fast-provisioning and configuration management for Ubuntu using Cloud Formation and Chef on Amazon Web Services.
• Worked with Windows, Ubuntu and Debian systems.
• Deploy Solr on AWS Platform
• Develop solr schema for financial data
• Expertise in configuration and managing Linux Virtual Machines under VMware.
• Experience in Package management using RPM, YUM and UP2DATE in Red Hat Linux.
• Experienced in managing users and groups and assigning file access privileges, ACLs, changing ownerships of users and groups using chown, chgrp commands, modifying the file permissions using chmod, SUID, SGID, and Sticky bit commands according to the requirement.
• Efficient in installing, configuring and implementing the RAID technologies using various tools like Logical volume manager and File System.
• Exposed to work on central remote printer services using CUPS.
• Experienced in configuration and maintenance of common Linux services such as Tomcat, Apache, MySQL, NFS, FTP, Postfix, LDAP, DHCP, DNS BIND, HTTP, HTTPS, SSH, ip tables and firewalls etc.
• Experience in troubleshooting hardware issues on HP DL 380, DL 580, BL 460c and BL 660c servers.
• Installed, configured, and supported; Debian and CentOS servers; Apache, PHP, Tomcat, WSO2, LDAP, etc.
• Ability to handle load balancer implementations like bonding multiple interfaces into single bond in case of over load on LAN devices.
• Extensively used VERITAS Cluster Server 4.x & 5.x.
• Integrate open source technologies such as SQLite, nginx, dhcpcd and libmnl into code base
• Created LAMP instances with Apache Web Server & Nginx on AWS.
• Experience in VERITAS Volume manager (VxVM), Mirroring, and striping, Parity, New File Systems, Mounting and Un mounting File Systems Also Back-up management using normal back-up tape drives, manual commands (tar, scp, cpio, dd etc.), VERITAS Net Backup.
• Strong understanding in writing the automation of processes using the shell script with bash and Python.

TECHNICAL SKILLS:

Operating Systems: Linux (Red Hat, Cent OS, Ubuntu, Debian, SuSe), Windows, AIX, Solaris.

Networking: TCP/IP, LAN, WAN, FTP/TFTP, NFS, DNS, DHCP, SMTP, VPN.

Virtualization: VMware, ESXi, VSphere, VCenter Server.

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

Database: MariaDB, MySQL, RDBMS, MSSQL, Oracle.

Programming Language: Shell scripting (Bash), Python, Ruby, HTML, VB, JAVA.

Backup Management: VERITAS Net Backup 5.x/6.x/7.x, tar, scp, cpio, dd, Linux Logical

Third-party Software: RAID Technologies, VERITAS Volume Manager, HP Service Guard

PROFESSIONAL EXPERIENCE:

Confidential

Sr. Linux/DevOps/Vmware/Aix Systems Engineer

• Installation, configuration and upgrade of Red hat Linux and SUSE, AIX and Solaris operating system
• Production support on red-hat Linux System in a 24/7 production Environment to ensure maximum availability of all server and application
• Expertise in VMware vSphere version ESXi and vCenter operations Management.
• Experienced working in VMware ESX (VSphere) hypervisor for virtualization and installed different OS such as Linux (RHEL), SUSE, Solaris and Windows.
• Create and manage Cinder volumes in OpenStack Cloud.
• Create and collect measurements across OpenStack using Ceilometer Telemetry Service.
• Monitoring running stacks including events & resources on OpenStack Cloud.
• Knowledge in Implementation of horizontal auto-scaling use cases using OpenStack components - Heat, Ceilometer, Lbaas.
• Administered, maintained and monitored Central site with several remote Primary sites based on Windows2003 Servers in a Windows2003 Domain.
• Utilized Redhat Satellite Server for kick starting VMware virtual servers with the Redhat RHEL 5/6/7 OS Versions.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Boot the VMware ESX host from the HPE 3PAR StoreServ Storage
• Create, resolve and update PAC2000 tickets on daily basis, for HP FRU hardware failures and triage and assign unresolved tickets to the appropriate support teams
• Monitor NETCOOL and PAC2000(remedy) ticket queue, and provide operational resolution for defined tasks such as drive utilization for window C:/, D:/, H:/, M:/, Q:/, and directory utilization UNIX Linux application and OVO agent status failures
• Manage the configurations of different servers utilizing Ansible.
• Used file module in Ansible playbook to copy and remove files on remote systems.
• Deploy Redhat Satellite 6.2 Management solutions with custom repositories that provide a stable management solution for Linux systems.
• Export the LUNs—HPE 3PAR MC
• Implemented automated local user provisioning in instances created in OpenStack cloud through Ansible Play books.
• Experience in Implementation of Continuous Integration and Continuous Delivery and other tooling as needed to support internal and customer development efforts to customize and enhance OpenStack.
• Migration of virtual machines from ESX 3.5 to ESX 4.0.
• Patch/upgrade OS and software on Red Hat Enterprise 5.x, 6.x and 7.x using RedHat Satellite server.
• Maintained software packages on servers using RHEL Satellite and Repository servers.
• Managed CIFS and NFS exports and FTP services on Iselin.
• Provide administrative services for MS Windows Server 2003 and 2008R2, DNS, ADS, IIS, MS Windows 7 and 8 Professional and Windows XP Professional, and VMware.
• Performed Network/Administrator, Desktop Support for MS Windows 7 and 8 Professional workstations.
• Migrate all Windows2008 Domain Controllers to Windows2012 R2 Domain Controllers AD.
• Wrote the Company Standard Server Build Document for all Windows2012 R2 Servers.
• Wrote the Company Standard QA Process Document for all new Windows2012 R2 Servers.
• Performed NAS migration from Isilon to Isilon, and VNX and NetApp to Isilon.
• Performed V Motion using the V center on the ESX machines for migrating the VMs online.
• Installation of ESXi 5.0 Hosts, vCenter Server, vCenter update manager and administering VM's
• Deployed and configured Windows, Linux, and OS X server operating systems
• Installation of ESXi 5.0 Hosts, vCenter Server, vCenter update manager and administering VM's across 2 Datacenter’s running 6000 VM's.
• Developed vRO workflow for VM provisioning using vRO.
• Created network profiles and storage policies in vRA.
• Migrated vRO workflows from Develop environment to Test and production environment.
• Integrated end points to VRA (vCenter and vRO).
• Configured replicated storage for DR test and performed a bubble test.
• Shutdown primary servers and brought DR servers up in the DR activity.
• Performed SRM test for VM machines too.
• Automate any given manual task using Perl and Shell Scripting.
• Responsible for writing/modifying scripts using BASH & Shell
• Integrated Linux to Active Directory using Samba-WIN BIND.
• Worked in implementing Hitachi Universal Replicator in USPV/VM and VSP storages across the Datacenters for Open and z/OS systems.
• Worked on integrating all the servers with samba-windind and SSSD for authentication.
• Creating access groups for the Linux servers in AD and assigned a UNIX attributes to the servers.
• Maintained users and groups in AD for DMZ zone.
• Add users and groups to access group of Linux in AD and implement SSSD for authentication.
• Maintain daily operations for Windows server infrastructure and components.
• Built servers and installed applications as per the company standards and requirement. Used Windows2003/2008 r2 Standard Edition. Upgraded the Firmware of the servers.
• Installed & configured Windows2008 with Active Directory service, involved in the maintenance and up gradation of DNS and DHCP servers.
• Hitachi Tuning manager for identifying the underlying the issues in SANFabric Migration, Merging of various fabrics, Zoning, Modifying configuration, FW upgrades
• Was involved in planning of a DR test
• Configured IIS on Windows2008 Servers and Apache on Linux& Solaris environment.
• Comprehensive support and administration of Win NT/ 98/2000/2008/2010 systems
• Configured and installed AIX and Redhat Linux Servers using jumpstart, Ignite, and Kick start.
• Proficient in configuring, implementing, and monitoring different types of High Availability and disaster recovery scenarios like SQL AlwaysOn, Mirroring, Replication, log shipping, and clustering.
• Installed and configured SQL 2012 AlwaysOn Availability Groups.
• Installed and configured clustering and AlwaysOn Availability Groups environment as a High availability DR solution.
• Export the LUNs—HPE 3PAR CLI
• Installed and configured puppet dashboard.
• Creating puppet deployment environment and creating puppet manifest
• File system management over SAN (EMC) Environment: Sun Solaris, AIX, HP, DELL/IBM/HP Blades.
• Creating Virtual machines, Clones and template for Linux and Windows
• Set up and configure virtual recourses (LHEA, NPIV, virtual SCSI, virtual Ethernet, and virtual FC)
• Worked on Open stack and its components like Nova, Glance, Swift, cinder, neutron and, Horizon.
• Provided on-site physical and virtual support of technology infrastructure.
• Successfully coordinated server and network migrations with collocation customers and led physical migrations during the scheduled maintenance Windows
• Was the infrastructure support for DR test.
• Package management using RPM, YUM and UP2DATE in Red Hat Linux
• Installed python 2.7 on Linux boxes

Environment: RHEL AIX, SUSE, SOLAIRES, puppet, Ansible, OpenStack, HP HELION OPENSTACK, Remedy, VxFS, VCS, Solaris, 3PAR, HP ONEVIEW, VMware, SUN/MAC MINI/COMPAC/DELL/IBM/HP blade servers, Active Directory, Logical Volume Manager, Veritas net backup, SAN Multipathing, VM ESX, VM vSphere, VMware

Confidential

Sr. Linux/ DevOps /VMware/Aix Systems Administrator

Responsibilities:

• Responsible for managing more than 5000 LINUX servers through virtualization.
• Installed VMware ESXi software which is a part of vSphere suite on bare metal hardware and implemented several virtual hosts on top of that ESXi environment.
• Installed, monitored and managed several virtual hosts on VMware ESXi using the software vSphere client.
• Performed Network/Administrator, Desktop Support for MS Windows 7 and 8 Professional workstations.
• Used BMC Remedy (PAC2000), IMPACT, and MAXIMO to generate problem tickets.
• Work on Pack2000 Remedy ticket tool.
• Performed administrative tasks and system maintenance for MS Windows servers, Active Directory, IIS, and SQL Server.
• Used configuration management tools like puppet and RedHat satellite
• Linux Satellite to install yum updates and other software.
• Configuring Windows Active Directory service and designing standard folder architecture for the users.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Excellent hands on OpenStack cloud and implementation.
• Prepared and documented deployment and upgrade ofMirantis OpenStack environment.
• Expertise in OpenStack services such as Horizon, Keystone, Nova, Neutron, Glance, Cinder, Ceilometer and Swift.
• Performed installation and configuration of VxVM for volume management, VxFS for Veritas file system and VCS for Veritas Cluster system on various servers.
• Migrating Windows server 2003 to Windows server 2008 is my primary role in this project.
• Administration and support of Web Servers, file servers and data base servers.
• Responsible for upgrading the servers from Windows server 2003 to Windows server 2008.
• Involved in implementing single sign on (SSO) using WSO2 Identity Server.
• Implemented Business Process for Customer Validation using WSO2 Business Process Server.
• Installed VMware vSphere client software which is a part of vSphere suite on a client machine to monitor the virtual hosts.
• Worked on Active Directory Authentication
• Installation and configuration of Windows servers running DHCP, DNS, Exchange & Active Directories.
• Created Cloud (Active/Active) Windows Server 2012 R2 environments across two geographically located Datacenters, if one Datacenter became unavailable, there was no user impact.
• Installed, configured and administered all: Windows Server 2012 R2: DNS Servers, DFS Servers
• Extensively worked under the Devops environment using the Configuration Management Tool such as PUPPET open software for the automation of several processes.
• Worked in physical, virtual and Devops environments with several teams and contributed in user and group management, data management, network management, system and server administration tasks etc.
• Responsible for the migrating all the data and user accounts from Windows2003 to Windows2008
• Troubleshooting the network issues in the servers
• Installing and configuring new Windows2008 server
• Used Github repository to run the Jenkins job for Continues Integration.
• Maintain source code in Github repo's
• Expertise in configuring a domain, deploying applications, configuring data sources, logging and web subsystems in Jboss 5 and EAP 6.2 in different environments like Development, QA, UAT and Production on Linux (RHEL 5) and Solaris 9 operating systems.
• Installed and Configured Tomcat Application.
• Installed and configured IIS for SMTP connection in mail flow.
• Experienced in Installing, Configuring and the maintenance of the IBM WebSphere Application Servers 4.0/5.x/6.x and WebSphere Commerce Servers and Web servers like IHS, Apache on AIX, Linux and WINDOWSNT/2000 platforms and setting up the development, testing and production environments.
• Worked on version control using GitHub.
• Solr installation and development as a micro service
• Implemented Solr Search on parsed resume database
• Used Nagios Monitoring tool to monitor server uptime, Services running on Linux & Windows servers and also solve the issue as per SLA.
• Maintenance and administration Linux OS (Solaris, Oracle Linux, Red Hat, CentOS, Debian)
• Perform Enterprise Security Management (ESM) upgrades on Solaris and Linux environment and add the ESM managers to the servers
• Integrated OpenStack (Ice house) with OpenStack to create software-Defined-Networking tenant and service provider network and routers.
• Scaled developer infrastructure as project grew and transitioned to OpenStack Foundation
• Developed automation of Solr schema generation
• Solr sharing and clustering
• Use Nagios monitoring for 24*7 server uptime, alerts, and troubleshoot issues as per SLA.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Worked on DevOps tools like Jenkins, Maven for Build Management and puppet, chef and Ansible for Configuration Management SVN/GIT for Version Control and Nagios, splunk for Monitoring and Log Management.
• System Administration Experience on installation, Configuration and Administration of RHEL, Centos, Ubuntu and Windows
• Migrate Windows Oracle WebLogic Applications servers running on VMware in the datacenter to the Debian Linux Application servers in the Google Cloud with Oracle Database servers.
• Deploy updates using Jenkins / GitLab, running Tomcat and Nginx on Debian Linux in the Google Cloud
• Software development in Python/C for testing platforms in Linux(Debian)
• Created multiple puppet modules to manage different environment
• Edited puppet yaml file with necessary credentials
• Setup puppet client/node and ensure that puppet clients could communicate with puppet master
• Strong skills in managing Red Hat Linux servers, Virtualization (VMware, Red Hat enterprise virtualization preferred), and system security.
• Mentored other systems administrators in engineering, installation, configuration, testing and administration of Linux servers.
• Build, implemented and maintained system-level software packages such as OS, Clustering, disk, file management, backup, web applications, DNS, LDAP.
• Configured and maintained FTP, DNS, NFS and DHCP servers.
• Worked on configuring, maintaining and troubleshooting of local development servers, software implementations.
• Performed configuration of standard Linux and network protocols, such as SMTP, DHCP, DNS, LDAP, NFS, SMTP, HTTP, SNMP and others.
• Installed and configured Puppet, a configuration management tool for automating several processes in the Devops environment.
• Created Puppet Master and Agents machines in the production environment for deploying, updating the software in automation process.
• Helped in creating the manifest files for deploying the mail software across multiple agents in the production environment.
• Installed and used "Git" a version controller in puppet master for monitoring and updating the regular changes in the project.

Environment: Red Hat Enterprise Linux 7 OS, EMC and XIV servers, puppet, Ansible, OpenStack, Remedy, VxFS, VCS, Solaris, Active Directory, Puppet, Ubuntu, Debian, GIT, VMware ESXi, Sun Solaris …, vSphere, VCenter, WSO2 Application Server, WSO2 Data Services, WSO2 ESB, WSO2 Identity Server, WSO2 BPS

Confidential, NY

Sr. Linux/Unix/VMware/Aix Systems Administrator

Responsibilities:

• Installed and configured several hundred Red Hat Blade and VMware ESXi 4.1, 5& 5.5 Virtual Environment.
• Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
• Configuration of Network bonding which include Active/Standby and Active/Active.
• Managing Manifests in Puppet.
• Monitor NETCOOL and PAC2000(remedy) ticket queue, and provide operational resolution for defined tasks such as drive utilization for window C:/, D:/, H:/, M:/, Q:/, and directory utilization UNIX Linux application and OVO agent status failures
• Used BMC Remedy (PAC2000), IMPACT, and MAXIMO to generate problem tickets.
• Configure Winbind on all Linux workstations, which enables all the Linux users to be authenticated on Microsoft Windows 2000 and 2003 Active Directory Server.
• Installing, configuring Nagios on Linux, Solaris clients.
• Managed Network Management System that included NAGIOS (formerly Netsaint), Micromuse Netcool, Open Systems Nervecenter and Concord Sysedge server agents for Windows2000, Sun, Linux servers.
• Installed, configured, and put into production Nagios monitoring system and Splunk troubleshooting system
• Added and expanded new storage to existing or new system using LVM, VxVM, VxFS and SVM.
• Installed, configured, and upgraded VERITAS Storage Foundation Suite, VERITAS Volume Manager, VERITAS Cluster Servers (VCS) and VERITAS File System (VxFs) - version 4.x, 5.x.
• Perform responsibilities of implementing WindowsXP and hardware applications.
• Administered, maintained and monitored Central site with several remote Primary sites based onWindows2003 Servers in a Windows2003 Domain.
• Software development in Python/C for testing platforms in Linux(Debian)
• Linux Terminal Server X2Go (Debian)
• HL7 files were received and processed using WSO2.
• The Insurance segments of the HL7 files were processed using WSO2 Java mediator class.
• Created a Composite Application project and deployed using WSO2 enterprise service bus.
• Experience working in VMware ESX (VSphere) 4.x, 5.x hypervisor for virtualization and installed different OS such as Solaris, Linux (RHEL), Windows.
• Installing, configuring Nagios on Linux, Solaris clients.
• Linux Server administration and automation, Ubuntu and Debian, packaging of tools (DPKG)
• Installed and configured Puppet, a configuration management tool for automating several processes in the Devops environment.
• Performed SQL queries for Windows and Linux DevOp NoSQL server development for MongoDB updates.
• Performed Installation of JBOSS JON 2.4, monitoring server that will monitor the JBOSS instances, operating system parameters running on different Operating systems.
• Managing and Monitoring the JVM performance by WebLogic Heap Size, garbage collection, JDBC Pools and taking Thread dumps and analyzing to find the problems in application. Configured the Session Management i.e. Memory to Memory on WebLogic Application server. Good experience in development and deployment of enterprise applications on WebLogic, and Tomcat application servers.
• Integrated IIS with Weblogic using SSL secure connection.
• Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef and custom Ruby/Bash scripts.
• Responsible for NIM installation on LPAR's, setting up NIM Servers, Clients, Define the resources, Migrations with NIM. Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
• Implementing a monitoring system using Zenoss and Nagios plugins in order to monitor temperature, cpu, memory, disk utilization, ipmi, event notification.
• Set up Ganglia and Zenoss for cluster monitoring.
• Installing and configuring Red Hat Enterprise Linux 5, 6.1 using kick start servers.
• Responsible for installation, Configuration and administration of Oracle10g/11g database on Linux and Windows2003 Servers and also an integral part of the backup and recovery.
• Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
• Implement variable interpolation when creating puppet modules
• Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
• Participating in 24x7 production on-call support of Linux and provided technical support to users.
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite servers.
• Implemented rapid provisioning and life cycle management for Red Hat LINUX using kickstart.
• Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server based Linux tools.
• Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
• Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
• Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
• Expertise in creating VM Templates, cloning and managing Snapshots.
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Troubleshooting any performance issues with MySQL and Oracle.
• Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules.
• Monitoring and troubleshoot backups and schedule Cron jobs.
• Experience in scripting using BASH & PERL
• Worked on Mail Server, Samba Server, Apache Server.
• Worked on configuring NIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAID levels.
• Extensive experience in network management TCP/IP, NIS, DNS, NFS, VLAN.
• Experience in database replication using OCFS2 file system with oracle 10g and 11g database.
• Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
• Experience in deploying RHEL 5.x, 6.1 in a blade environment.
• Patch management of servers and maintaining server's environment in Development/QA/Staging/Production.
• Resolving assigned remedy tickets and remedy tools in Development/QA/Staging/Production.

Environment: Redhat4x, 5x, Solaris 9/10, AIX, HP-UX, VMware ESX 5.0/5.1/5.5, VSphere, Active Directory, HP ProLiant Servers DL 380/580, Dell Servers (R series), Remedy, VxFS, VCS, Solaris, Windows2008 sever, EMC Clariion, Netapp, SCSI, VMWare converter, Apache Web server, F5 load balancer, oracle,, PHP, DNS, DHCP, BASH, NFS, NAS, Spacewalk, Tomcat, Kickstart, Sun Solaris … Ubuntu and Debian

Confidential, IL

Sr. Linux/Unix/VMware/Aix Systems Administrator

Responsibilities:

• Worked on configuring, maintaining, and monitoring the File Servers like NFS, FTP and Samba.
• Installed VMware hypervisor on top of the Windows operating system and also created several virtual machines.
• Responsible for NIM installation on LPAR's, setting up NIM Servers, Clients, Define the resources, Migrations with NIM. Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
• Extensively worked on tools like Veritas Volume Manager (VxVM) and Veritas file System, Logical Volume Manager (LVM), Solaris Volume manger (SVM).
• Experienced in creation and maintenance of user accounts and active directory.
• Experience in building Servers using Jumpstart in Solaris, Kickstart in Linux, Ignite process in HP-UX and Manual installation.
• Created groups, users, roles and configured alerts in JON 2.4 (JBOSS Operations Network) monitoring server.
• Installed the application on AWS EC2 AMI, Red hat, Ubuntu Instances.
• Installed Linux operating system on the virtual machines to make a Linux environment for creating the file sharing servers.
• Installed, configured the several services like NFS or FTP or Samba Servers depending on the requirement.
• Created users and groups and restrict them using Basic, ACLs and Advanced File Permissions apart from the File Server level permissions.
• Installed and updated required packages using the central repository (YUM) and RPM.
• Performed monitoring the network issues and tuning the performance of the system using some commands such as top, netstat, iostat, vmstat and ndd etc.
• Created Samba Shares depending on the modules discovered by the users.
• Shared files between Linux boxes and Windows using the WinSCP, a secure FTP, SCP client for Microsoft Windows.
• Monitored the Linux servers on a regular basis and was into tuning them accordingly in order to optimize performance.
• Configured the Quotas so that users can be prevented from storing unnecessary files in the File Servers' storage.
• Helped other users in mounting the Samba Shares, allowing them to use the shared files.
• Performed log management by using Alert log and Sys log.
• Worked on automation of processes using Crontab and shell scripting using Bash.
• Handled network related services like FTP, NFS, Samba, TCP/IP.
• Performed daily backup of files using manual commands like tar, scp, dd, cpio, and VERITAS NetBackup.
• Handled server health related reports which were critical in deciding the performance of the servers.

Environment: Red Hat Enterprise Linux 6.4 OS, Windows, VERITAS NetBackup, Sun Solaris … VMware, Ubuntu and Debian