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Linux Administrator Resume

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Brentwood, TN

SUMMARY:

  • Around 7+ Years of experience in SUSE Linux, Redhat Linux / Solaris, Unix Administration on Sun, HP Servers for Mission Critical and Enterprise applications.
  • Experience in installation and implementation of Red hat Linux, Solaris 8, 9, 10, HP - UX, Windows NT/XP in Open Systems environment.
  • Experienced in system administration, System planning, co-ordination and group level and user level management.
  • Configuration, implementation and administration of NFS, NIS, DNS, and Sun Cluster and LDAP on Solaris and Linux environment.
  • Understanding and troubleshooting skills with networking communications and protocols such as TCP/IP, NFS, DNS, SMTP.
  • Expertise in creating and managing Logical Volume Manager in Redhat Linux.
  • Expertise in Installation, Configuration of Package and Patch Management.
  • Experience in Disaster Recovery and Planning.
  • Problem determination, Security, Shell Scripting.
  • Experience on backup and recovery software like Net backup 5.0 and 6.0 on Linux environment.
  • Installation, administration, implementation, testing and maintenance of complex and heterogeneous networks consisting of Linux (Red Hat), Sun Solaris 8/9/10, IBM AIX, Windows NT, and Peripherals.
  • Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Jboss servers in Sun Solaris and Linux environment.
  • Experienced in installing LAMP (Linux, Apache, MySQL, and PHP) for different applications.
  • Hardware configuration, installation and management on Sun, HP servers and Workstations.
  • Handling and generating tickets via the Remedy ticketing tool.
  • Configured ILOs and Console connections for HP and SUN servers.
  • Knowledge of Routers, Switches, Hubs, Firewalls, LAN, WAN Intranet, Internet.
  • Maintained high availability of data using Oracle Real Application cluster Server and Sun Cluster.
  • Excellent Project Management experience.
  • Systems and network Planning and Administration.
  • Backup and Restore Management like backup, Tape library and Disk library and EMC.
  • Excellent verbal communication skills and strong documentation skills.
  • Have the working knowledge on the Amazon web services.

TECHNICAL SKILLS:

OPERATING SYSTEM: SLES 10, 11, Solaris 10/9/8, HP-UX (10.20, 11.00, 11.11, 11.23), IBM AIX (4.3, 5.1L, 5.3L), Red Hat Linux (AS/ES 3/4/5), Windows NT 4.0/2000/2003/ XP/vista

HARDWARE: HP Gen 8 Blade and Rack mount Servers, Sun Fire 280R/V 480/4800/3800/12 K/15K, TSeries, MSeries Server, Sun Enterprise 6500/5000/450/420 R,, HP 9000 K,L,N class server, rp8xxx/7xxx, IBM RS/6000, pSeries, Xseries, HP/IBM/Blade Servers.

STORAGE: NetBackup, SAN EMC Symmetrix 800/ DMX1000, 2000 & 3000, EMC Clariion 500, 600, 700, NetApp NAS 2000/ 3000 series

Web /Application Server: Apache Tomcat, WebSphere, WebLogic.

CLUSTER: Oracle Real Application Cluster.

LANGUAGES: UNIX Shell Scripting, Perl.

PROFESSIONAL EXPERIENCE:

Confidential, BRENTWOOD TN

LINUX ADMINISTRATOR

Responsibilities:

  • Provided system support for 2000+ servers of SUSE Linux and Redhat Linux including routine maintenance, patching, and system backups and restores, and software and hardware upgrades.
  • Worked on building new SUSE & Redhat Linux servers, support lease replacements and implementing system patches using the HP Server Automation tool.
  • Experience with VMware Virtualization using ESX hypervisor of Vsphere 5.1.
  • Experience in installation and implementation of SLES 10, SLES 11 and Redhat Operating Systems.
  • Configuration, implementation and administration of Clustered servers on SUSE Linux environment.
  • Experienced in system administration, System planning, co-ordination and group level and user level management.
  • Expertise in creating and managing Logical Volumes in SLES Linux.
  • Performed automated installations of Operating systems SUSE Linux using autoyast.
  • Experience on backup and recovery software like Net backup on Linux environment.
  • Systems and network Planning and Administration.
  • Expertise in setting up Nagios Monitoring software.
  • Supported production systems 24 x 7 on a rotational basis.
  • Understanding of Microsoft System Center: Creating and Implemented Changes on servers and documented the change in the Microsoft System Center for future .
  • Resolved Security Access Requests via Peregrine Service center to provide the requested User access related requests.
  • Expertise in Installation, Configuration of Package and Patch Management.
  • Handling and generating tickets via the BMC Remedy ticketing tool.
  • Experience with HP Gen 8 blade servers and rack mounted servers.
  • Coordinated Hardware configuration, installation and management as well as. Configuration of ILOs and Console connections for HP Gen 8 Blade and Rack mounted servers.
  • Experience with setting up Linux servers for Oracle Real Application Clusters and configuring SAN based mount points.
  • Experience working with AWS cloud computing platform like VPC, EC2, load-balancing with ELB, messaging with SQS.
  • Expertise in using EBS under high I/O requirements, custom monitoring metrics/analysis/alarms via AWS API and different toolkits for instrumenting it (e.g. Boto ).
  • Excellent Project Management experience.
  • Expertise in Performance Monitoring and Performance Tuning using Top, prstat, sar, vmstat, ps, iostat etc.
  • Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, FTP.
  • Creating new file system, managing & checking data consistency of the file system.
  • Created new file systems using Raw Device Mapped lun’s, Virtual Disks and SAN storage as per required.
  • Successfully Migrated virtual machines from legacy Virtual environment Vmware Vsphere 4.1 to new Vmware Vsphere 5.1.
  • Successfully upgraded SUSE Linux 10 to SUSE Linux 11 on an Oracle production standby server without losing any of the database information.
  • Documented the procedure of Obsoleting servers resulting in considerable reduction in time and mistakes for this process as well streamlining the existing process.
  • Communicated and Coordinated with customers internal/external for resolving issues for reducing downtime.
  • Experience in Disaster Recovery and Planning.
  • Problem determination, Security, Shell Scripting.
  • Supported after-hours to meet deadlines as well as for operational support as required.
  • Proven experience in end-to-end problem determination/troubleshooting system issues.
  • Thorough understanding of networks and storage systems.

Environment: SUSE Linux 10, 11; HP Gen 8 Blades and Rack mount Servers, HP Server Automation, Vmware Vsphere 4.1 and 5.1, Microsoft System Center, IBM Storage, and NetBackup Storage.

Confidential, Des Moines, IA

LINUX Administrator

Responsibilities:

  • Installation, Configuration and upgrade of Redhat Linux (2,3,4,5), CentOS, SUSE, Solaris, AIX, HP-UX & Windows /2008 Operating System.
  • User Administration, management and archiving.
  • Configuring NFS, NIS, NIS+, DNS, Auto Mount & Disk Space Management on SUN Servers.
  • Experience in Configuring and Managing Virtual Disks, Disk Mirrors & RAID Levels.
  • Data Center Migration support for CX, DMX attached hosts.
  • Worked with OVF "Open Virtual Machine Format" supported tools VirtualBox, Redhat Virtualization (XEN), and VMware Workstation.
  • Experience with Puppet and Chef Configuration management tool.
  • Experience with VMware Virtualization using ESX hypervisor of Vsphere 4.0.
  • Installation, Configuration and Maintenance of Samba, Apache Tomcat, Web Sphere and Jboss servers in AIX, Sun Solaris and Linux environment.
  • Experience in Active directory configurations and support.
  • Experience with setting up Linux servers for Oracle Real Application Clusters and configuring SAN based mount points.
  • Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, FTP
  • Experience in storage administration support with EMC Symmetrix / DMX, Clariion, NetApp NAS filer and Brocade / Cisco Fiber Switches for zoning purposes.
  • Troubleshooting host-based connectivity issues related to EMC software like PowerPath, Navisphere, ECC client software and third-party HBA's (Emulex and Qlogic).
  • Emulex and QLogic HBA cards installation and configuration of the host servers.
  • Experience with Connectrix Manager and Data Fabric manager, Zoning, LUN allocation, Storage allocation to storage groups.
  • Expertise in Performance Monitoring and Performance Tuning using Top, prstat, sar, vmstat, ps, iostat etc.
  • Expertise in creating and managing Logical Volume Manager in AIX, HP-UX and Redhat Linux.
  • Server Consolidation and Migration of Applications on Oracle Enterprise and Java Applications.
  • Experience in building Production Servers and validation for new build releases.
  • SENDMAIL configurations and administrations, testing the mail servers.
  • Creating new file system, managing & checking data consistency of the file system.
  • Monitor, Modify and Optimize NetBackup activity, backup schedules and reporting to proactively avoid issues.
  • Performed automated installations of Operating systems using Jumpstart, Flash Archive Ignite for HP-UX.
  • Installation of Packages and Patches for AIX, Solaris 8/9/10, Redhat Linux 4/5, HP 11.X.

Environment: Redhat (2,3,4,5), CentOS and SUSE Linux, Solaris 8 / 9 / 10, Sun Enterprise Server, HP 9000 K, L, N Class Server, IBM RS/6000, pSeries Server, NetBackup 5.0, SAN EMC Clariion CX 700/ CX 600/ CX 500, EMC DMC 2000/ 3000, NetApp NAS 3000, Windows NT 2003/2000/ XP.

Confidential, Sandiego,CA

Unix/Linux Administrator

Responsibilities:

  • Installation, Configuration & Upgrade of Linux, Solaris, AIX, HP-UX, Linux operating systems, Installation of patches and packages.
  • Experience with VMware Virtualization using ESX hypervisor of Vsphere 4.0.
  • Maintained Server 6.0. Backup data of Servers using Net Backup. Maintained Security of the Solaris Servers.
  • Worked on Solaris 10 container technology, configured separate zones for various applications.
  • Involved in Implementing and Administrating enterprise level data backup and recovery.
  • Designed and Implemented back up solution for the Network
  • Installed and configured file and Application servers running on Sun servers
  • Configuring and maintaining network services such as LDAP, DNS, NIS, NFS, Web, Mail, FTP
  • Managed Network troubleshooting applications TCP/IP including Ethernet, IP addressing & Sub netting, routing
  • Worked on creating user accounts, user administration, local and global groups on Solaris platform
  • Created User Accounts and Network Shares. Configured SUN Workstations as Domain Clients.
  • Administrated NFS, NIS, DHCP and DNS Samba services running on AIX, Sun Solaris and Red Hat Linux.
  • Worked with Storage team to configure EMC SAN, NAS and iSCSI configuration.
  • Managed Users for AIX, Solaris, HP-UNIX and Linux Servers and assigned rights to access network resources.

Environment: Redhat Linux, Solaris 9/8/10, HP-UX 11.0, AIX 5L,Sun Enterprise 450/420R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, HP 9000 K,L,N class server.

Confidential

Unix/Linux Administrator

Responsibilities:

  • Installation, Configuration & Upgrade of Solaris, AIX, HP-UX, Linux and Windows-NT operating systems.
  • Installation Packages and patches.
  • Supported 24/7 high availability production servers.
  • Monitoring System using HP/ITO, Do kernel tuning to enhance the system Performance.
  • Configuration and Administration of DNS, NIS, NIS+, NFS, send mail.
  • Installation, configuration and remediation of various Security software
  • Expertise in VMware Virtualization using Vsphere 4.0.
  • Installation and configuration of Netscape and Apache web server and Samba Server.
  • Jumpstart installation. Writing Shell and Perl Scripting for automation of job.
  • Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
  • Interaction with vendors for Hardware and software supports.
  • Configuration and Administration of Veritas Cluster and MC Service Guard.
  • Disk and File system management through LVM and SVM.
  • Installation and configuration of Apache and Websphere Server in Linux Platform.
  • Backup management through Netbackup. Creation of Volumes and pools and scheduling the job.
  • Installation and configuration of Network Printer with Centralized control of print client.
  • Database Backup and Recovery. Performance Monitoring and Tuning
  • Planning and setup of Disaster Recovery Servers.
  • Trouble shooting of day to day system and user problems.
  • Arbitrated Customer/User meetings to establish needs, initiated/managed risk assessment team, define expectations and explain capabilities of current technologies.
  • Documented (formally) system requirements
  • Oversaw customer installation and acceptance testing of the product, Product resided on Sun configuration.
  • Trained customer user community.
  • Assisted team members in contracts, availability / problem resolution, technical Tier 1/2 support and security.

Environment: Solaris 8/9/10, HP-UX, 10.x/11.x, AIX 4.x/5.x, Windows NT 2003/2000/ XP, NT, Redhat 5, SUSE, Sun Enterprise 450/420R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun Sparc Ultra 1,5,10.

Confidential

UNIX/Linux Systems Administrator

Responsibilities:

  • Responsible for day-to-day System Administration for SUN SOLARIS servers.
  • Build the E450 and 6000 Servers with Solaris operating system.
  • Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery
  • Systems performance monitoring.
  • Experience with VMware Virtualization.
  • Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
  • Configured the Send mail client side for Sun Solaris servers.
  • Responsible for troubleshooting end user and application problems.
  • Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems.
  • Creating User accounts, Mail account, groups, printer etc
  • Installing operating systems, patches, hardware, vendor software packages, system customization and documentation of all departmental UNIX, PC-based workstations and Terminal.
  • Monitoring system resources, logs, disk usage, scheduling backups and restore.
  • Set up Quotas for the user accounts & limiting the disk space usage.
  • Creation/Configuration of Additional swap/ tmp dynamically as and when required.
  • NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
  • Solving the problems as & when created when NFS data being accessed.
  • Configured auto mounts/maps for the user accounts. Administration/Configuration of Print Servers/Clients in the Network.
  • Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
  • Assembling the systems and installing operating system and application software.
  • Designing computer displays to accomplish goals using flowcharts and diagrams.
  • Installing Operating Systems and Application Software. for users to use the program.

Environment: Solaris 10/9/8/2.x, HP-UX 11.0/11i, AIX 4.3, 5.1/5.3L,Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20

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