Linux Administrator Resume
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, IALINUX 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