PROFESSIONAL SUMMARY:

• Accomplished UNIX/ RHEL S ystem Administrator with over 12 years’ experience in the industry; administering, managing, and supporting day - to-day operations of HA enterprise infrastructures of Web servers, Application servers, Centralized Authentication servers running mission critical web-based applications all require implementation, deployment, monitoring, performance analysis, security compliance, incident management and troubleshooting to maintain the underlying infrastructure in Large-scale Virtual/Physical ( Kvm, Xen,VMWare, Ldoms, zones, Oracle VM Server etc.) environments (up to 5000+ servers) in Data centers located Nationwide & Internationally - -Test, Dev, QA, Production. Also, possess a history of supporting (Government, Private sector, Universities etc.)
• Extensive experience with Red Hat Enterprise Linux 4/5/6/7, Oracle Solaris 9/10/11, Centos 5/6/7, Oracle Linux 5/6 platforms - includes OS installation, utilized tools for multiple builds (kickstart, templates, jumpstart, OPS center provisioning) configuration of various software, open source, & third party applications, Also supporting backup and disaster recovery solutions, ensure backup failures are properly addressed, additionally, manage reverse proxy servers to improve website response times, local to LDAP migrations, the movement of new release files from test to live environments, preventive maintenance, collect metrics for analysis and leverage for performance. Includes using tools like BladeLogic, Patch management with RHN, Red Hat Satellite server, bash shell scripting,
• Additionally, experience with building/configuring/migrating primary/guest LDOMs, Zones containers, ZFS filesystem, implement migrating from Solaris to RHEL, server validation, certificate renewal, decommissions, Monitoring tools: (Nagios, Cati, Big brother, Hp Openview, NSM etc.) to diagnose and report system related problems for the network and applications running on different family of hardware products i.e. Dell PowerEdge, HP ProLiant, Cisco UCS B-Series m Sparc T-series, M-Series, Fujitsu M10, Oracle M6, Oracle server X3-2/2, x86-, w/supported switches, implemented F5 load balancer configurations for the network environment.as needed, for Enterprise level High Availability.
• Accustomed to change management procedures, capable of quickly evaluating various operational situations, root cause analysis of the systems-- network issues, collaborating with vendor support, and other teams; isolating problems and resolving issue w/large number of enterprise web applications. Thorough understanding of the Unix security procedures based on, DISA STIG/checklist, addressing vulnerabilities, remediation and hardening. Familiar with ITIL processes & procedures.

TECHNICAL EXPERTISE:

Operation Systems: UNIX/Linux Platforms Oracle/ Sun Solaris 7/8/9/10, 11 RHEL 3/4/5/6, Oracle Linux 5/6

Hardware: Sun/ Oracle ( SPARC, Intel x86) Enterprise T5440/ T5120, T4-2 T3-1B Blade, T4-1-4, Oracle server X3-2/2, Oracle M6, M1-5 Series, Netra-T2000, Fujitsu M10, Sun Blade 6000 Chassis, Sunfire X4100, Enterprise E450, 2500, T5-1B Module, IBM Blade Chassis, Legacy Servers (Sun Fire /T1/2, V120 /250 280R/V440 /V490/V890, 4800, Ultra 20, 60, 80, 100, E250, Sparc2, 670), Intel x86 Cisco UCS - B/C-Series, DELL Power Edge M-series blade/chassis, 2600/2850, HP ProLiant DL360 G3, Dell MD1200 Powerfault, Sun Storage J4200, StorageTek 6100 Drive Array, Sun ZFS Storage 7320

Software: Solaris 7/8/9/10/11, RHEL 3/4/5/6/7, Centos 5/6/7, Debian, Oracle Linux 5/6,, Fedora, SUDO, Oracle Explorer, Oracle VM Server for x86 /SPARC 3.0-3.3/, OVM Manager 3.0-3.3, VCS, Oracle/SunOne Enterprise 8/9, Sun JES, SP (ILOM /ALOM, XCSF), Portecle, UCS Manager, Logical domain mgr, ZFS, SVM, LVM, Opt Center 11/12c, Oracle iPlanet 7, ESX 5, Exalogic, Weblogic 9.3/10/11, JBOSS, MicroStrategy 9.3, 5.x, Glassfish, Cold fusion MX 7/9, Tomcat 6/7, Apache Http 2.2, Authentication (Vintela Authentication Services (VAS), Central Security Server (CSS), PowerBroker, 389 Directory server, HBA( Emulex, Qlogic), vCloud Director

Monitoring tools: ( HP OpenView, Nagios, Cati, Splunk, Big brother, Opnet, NSM, Tripwire 8.0)

Storage: Netbackup 7, Tivoli Storage Mgr, EMC Clarion

Automation tools: (Bladelogic Puppet 4.7,)

Version control: ( Serena deminsion) Change Mgmt, Cygwin 1.5, Xwindows, STIGs, TCP Wrapper, VNC, Remote Desktop, Tectia SSH Client, COTS, Hummingbird (Exceed), Remedy,, Onyx, Seibel

Protocols/Services: NFS(autofs), DNS, HTTP, SSH, SFTP, LAN/WAN, TCP/IP, SSL, and DHCP

PROFESSIONAL EXPERIENCE:

Confidential

Sr Unix/Linux Administrator

Responsibilities:

• Implemented System requirement upgrades of RHEL 5/6/7, Oracle 5/6, VMs in VMware vCenter, upgraded Solaris 10/11.1 11.2, physical/virtual (guest ldoms, non-global zone etc.) including scripted installation builds ensuring team standards were maintained
• Implemented/automated new virtual builds & validated according to checklists prior to notifying the application/server owner via templates, kick start, pxe or jumpstart
• Responded to alerts generated by University monitoring software
• Provided guidance to Universities on various issues/request, i.e. OS, Disk space increase, application servers response time issues, web server problems, report statistics of usage of CPU, RAM & I/O (WebLogic servers); NFS shared directory not visible on the client side from web servers to application server, added URLs to proxy configuration, adding multiple certificates for domains etc.
• Examined all server log files (e.g. error.log, access.log, messages, error codes ….); gathered information for problem resolution;
• Installed/configured NetBackup Client 7 to communicate with master server on Rhel/Solaris for disk backups to tape library
• Presented new LUNS to the system to (resize LVM, add space to existing pools, increase dataset quotas, create new ZFS filesystems)
• Configured sftp chroot environment in RHEL
• Collaborated with Information Security to address security scans findings of risk levels (high, medium etc.) and remediate the vulnerabilities
• Patched and upgraded OS, Apache HTTP Server and Apache Tomcat to ensure yearly PCI compliance and to meet customer agreements.
• Used VMware Templates for automating the server build process this includes (provisioning, cloning)
• Initiated the use of Ops Center for system monitoring of all servers within the enterprise and responded to alerts to resolve performance/disk/network issues and advise end users
• Controlled and harden the systems from a security viewpoint
• Converted Solaris 10/11 native zones to kernel zones
• Accessed ILO/iLom for remote server management
• Created and updated a Virtual Machine image using VMware; managed existing Virtual machines setup in ESXi 5.1 hosts cluster
• Used Centrify to authenticate Active Directory RHEL users as valid users on various systems & examined the use of Centrify on Solaris
• Created and maintained documentation on RHEL/Solaris server builds policies and procedures, ensuring they are accurate and current.
• Executed Zfs/ldom configuration - allocated CPU resources, add more memory, migrate, etc.
• Performed the update all Solaris 11.1 systems to Solaris 11.2 SRU 15
• Performed decommission of servers and reclaimed all associated resources
• Implemented local/kernel zone builds (branded, whole root etc.)
• Responsible for maintaining and provisioning user accounts
• Provided guidance on best practices for server configuration, patching and system management

Confidential, Washington, DC

Sr Unix/Linux Administrator

Responsibilities:

• Implemented upgrades from Rhel 5 to 6 virtual servers managed by VMware Vcenter including standalone, Solaris 10 to latest version, Solaris 11.1-11.2, created additional guest ldoms/non-global zones for new websites, zfs modifications and migrated ldom/zones to other systems within the environment.
• Responded to NSM alarm alerts i.e., file system capacity, heartbeat of servers down etc.; examine all server log files (e.g. messages, error log, access log, error codes ); gathered information for problem resolution
• Troubleshoot hardware and operating system related issues, corrected any OS server inconsistencies, tested/upgraded system firmware, addressed system/application error messages, installed software, troubleshoot servers not responding after scheduled reboot, tested pre-production releases/revisions & implemented during maintence window, utilized RHN and live upgrade for patching OS, heap size tuning, tomcat listener tuning, troubleshoot network connectivity, configure network interfaces, SMNP relay issues not sending mail notifications, collected metrics for analysis and leverage for performance, automated tasks/ modified scripts using bash shell scripts, at, and cron
• Additionally, troubleshoot various system/application/website issues, worked with vendor support like Oracle, Cisco, EMC to provide resolution to issues that need priority escalation.
• Worked on vulnerability reports for all systems according to FISMA/NIST/STIG security guidelines to address remediate in order of severity.
• Installed/configured Netbackup Client 7 to communicate with master server on RHEL/Solaris for disk backups to tape library
• Ultimately, supported access to the customer Intranet resources, as well as customer resources hosted by third-party organizations and external DNS operations. Supplied authorized users with remote access to these services, to include external organizations such as states’ and other federal government agencies.

Confidential

Unix/ Linux /Technical Consultant

Responsibilities:

• Performed implementation planning/testing/deployment which includes discovery sessions, hardware requirements and assessment, remote platform installation, to u grade/configure environment from Lumins Platform 4 to LP5
• Build Luminis platform pre-prod servers running RHEL 5/6/7 or Solaris 10 servers in virtual network environment according to specification
• Troubleshoot Hardware and Operating system related issues, performed incident management
• Performed the network, port validation checks, resolve DNS common issues
• Create the setup.properties files to install the environment, set all necessary parameters
• Updated routing tables based on networking diagrams; tracked/monitored system performance and activity
• Applied system concurrency updates, patches, and configuration changes.
• Installed/configured Glassfish, LMG, WebLogic, Banner(BEIS)
• Performed performance tuning of portal servers: tomcat/ listener, ldap connection pool, heap size, logging verbosity
• Prepared the enterprise Central Authentication server by adding CAS service urls provided by campus IT
• Integrated Central Authentication Server for student single sign-on Banner internet native and self-service applications
• Configured NFS file system shared directory for all portal nodes& ensured that the shared file system was properly mounted
• Requested/installed new Certificates for Application and web Servers
• Implemented Solaris Container/zones and resource pools as required
• Updated routing tables based on networking diagrams; tracked/monitored system performance and activity
• Test the base installation environments by logging in to the portals to validate connection to login page using admin user
• Investigated any network related problems-- in Test and Production
• Provided action plan for resolution of any/all faults detected.
• Created service completion and follow-up report to send documentation to client

Confidential, Silver Spring, MD

Sr Unix/Linux Administrator

Responsibilities:

• Managed, deployed, and troubleshoot, RHEL, Debian, Solaris/ /Oracle Linux systems in a large enterprise Hosted Virtual environment
• Planned and setup the environment for hosting of web sites, collected metrics for analysis and leverage for performance
• Configured Apache Virtual hosting, Reverse Proxy, SSL website config on all web servers; filter the access using farm nodes and IP Tables; worked escalated DNSEC request/issues
• Perform Storage planning (purpose Raid configuration) via Chassis CMC management GUI or iDRAC remote
• Create New Web farm Websites (Secure Public, Development), site, DocRoot configuration, publish, and user profile directories
• Updated Squid Configuration
• Provision new Linux servers and installed the OS (RHEL); installed packages, patches and SSL certificates on all web servers.
• Setup MGT nodes at various NOAA locations
• Created new web site restrictions using LDAP or Generic User
• Fixed corrupted filesystems in the KVM environment
• Responded to Cacti/Nagios alarm alerts for file system capacity and heartbeat of servers down
• Troubleshoot Hardware and Operating system related issues; performed incident management
• Maintained LVM best practices -- created filesystems ext3, resizing, multipathing
• Upgrade CMC Firmware of various components
• Assisted users with installing and maintaining applications; grant user access to directories
• Implemented, configured and maintained application level load balancers
• Analyzed system/application failures, examine log files; verified network connectivity
• Performed bash shell scripting to automate tasks
• Installed and update various programs using yum; apt-get, install security fixes, and OS patches
• Worked with creating local zones on global zones hosted by LDOM server
• Installed Oracle VM Manager for x86 on OL5/6, Oracle VM server on physical servers
• Involved in creating and configuring Zones/Containers, zfs filesystems in Solaris 10environment.
• Managed sftp users (add, grant) access and create site restrictions (LDAP users)
• Managed some servers via Oracle VM Manager 3.0-3.3-- discovered Oracle VM Servers, created storage repositories, server pools & virtual machines network etc.,
• Participated in live domain migration on ldom (T5140). zone migrations to other hosts
• Monitored system performance using top, sar, iotop, iostat to ensure production jobs completed
• Implement documented procedures, solutions related to errors & problems.

Confidential, Columbia, SC

Unix/ Linux Administrator

Responsibilities:

• Responsible for maintaining platform build standards including all aspects of OS configuration and application deployment
• Planned/deployed Solaris 10/11 OS Oracle VM server for Sparc( Ldom-3.2) zones on multiple Sparc T/M-Series, Fujitsu M10-1 and Sunfire T5440 servers via jumpstart(Flash archive, Ops center 12c,)
• Participated in the Installation planning/deployment of WebSphere 9 Projects, utilized Microsoft project
• Worked escalated issues from other groups
• Implemented/Installed/configured Middleware enterprise applications (Weblogic, WebSphere etc.)
• Performed RHEL5/6 patch management & LVM operations after installation
• Secured RHEL 5/6, Solaris servers, worked on high risk scan alerts and remediation of security vulnerabilities deploy hotfixes as needed
• Verified TSM server for ensuring integrity of daily backups
• Troubleshooting Hardware and Operating system related issues
• Performed virtual machine management tasks using Oracle VM Manager 3.2
• Configuration of logical/control domains to host Oracle databases and applications.
• Coordinated with SAN team to request storage LUNS for configuration
• Implemented Storage Pools for ZFS on these servers
• Responsible for building/maintaining a RHEL 5/6, Solaris10, test lab environment
• Support management of server pools, Oracle VM templates
• Automated tasks using Puppet configuration tool, tool, bash shell scripts, and cron
• Analyzed system/application failures, examined log files; verified network connectivity
• Performed Solaris 10/11 patching (using Oracle Solaris Live Upgrade, IPS) upgraded firmware as needed
• Participated in live project to migration ldom/zone to other hosts
• Worked closely with supporting (developers/DB admins) during the new software version releases/revisions/deployments
• Accessed ALOM/ILOM/and XFCF console as needed
• Worked with creating local zones on global zones hosted by LDOM server
• Analyzed capacity, monitoring reports. Then proposed and implemented the changes.

Confidential, Charlotte, NC

Sr Unix/Linux Build Engineer

Responsibilities:

• Performed multiple (physical/virtual) Oracle/Sun Solaris 10,11, RHEL 5/6, OEL 5/6, server OS builds on (i.e., Application/Web, Database/QA/Develop/Test servers ) utilized kick start server, jumpstart, Ops center provisioning, cloud directory, ILOM web interface/SP-console
• Installed administered Oracle VM Manager/server on physical servers & created multiple OEL 5/6, Solaris 10 VMs in Oracle VM Mgr.
• Configured LVM on RHEL 5/6 after OS installs, Utilized Solaris & RHEL/ CLI for administrator tasks
• Updated Emulex HBA card firmware, install Tivoli storage mgr.
• Installed/configured Puppet agents on servers after build
• Investigated/troubleshoot problems that might arise with applications; included platform hardware estimates and recommendations
• Utilized Red Hat Satellite Server for patch management
• Post-build support for errors and omissions
• Joined servers to Active directory using VA stool
• Utilized OVM Manager to discover servers, and manage virtual machines.
• Support management of server pools, Oracle VM templates
• Requested/installed new Certificates for Weblogic Application and Web Servers
• Setup LDOMs and ZFS volumes on Oracle VM for SPARC
• Created Storage Pools for ZFS on these servers and Implemented Deployments
• Participated in zone migrations, move ldoms to another host
• Performed hardening of servers and audit compliance, address security scans findings of risk levels (high, medium etc., ) and remediation
• Coordinated/Implemented QA/Unix Validation Checklists for performing server Validations
• Performed server Decommissioning
• Updated Emulex HBA card firmware, install Tivoli storage mgr.
• Server OS “Upgrade/Reload”
• Participated in Lab Infrastructure
• Developed testing strategies to confirm end-to-end functionality.

Confidential, Charleston, WV

Unix/ Linux Systen Administrator

Responsibilities:

• Provided System administration and support to hundreds of UNIX/Linux systems in prod & non-prod, this included, proactive maintenance, NFS, account mgmt, network configuration, server validation etc.
• Build multiple Virtual, Physical Oracle Solaris 10/11, RHEL 5/6 for Application, Web, Database, QA, Dev, & Test servers via jumpstart server, kick start (PXE), Opt Center, Oracle VM Manager, VMware vSphere Center,
• Installed and configured HUD enterprise software applications (i/e., Weblogic10/11 Cold fusion MX 7.07/9, Glassfish, Sun One/Oracle Planet 7/8, MicroStrategy 9.3, Oracle Exalogic, NSM, Tivoli storage mgmt.) on RHEL 5/6, Solaris 10
• Implemented Zones/Containers (non-global-VMs), LDOMs (control/guest), ZFS (pools/file systems )
• Worked on a rotation schedule for the Weekly preventative maintenance-- Sunday during the 6 am to noon window
• Performed Ops Center 11g/12c tasks to discover and manage datacenter assets, install agents and Patch Servers
• Worked on assigned projects i.e., HUD.gov webcenter migration - - build/move/clone LDOMs/Zones/ZFS & convert of Solaris and linux systems from local to LDAP authentication, implemented Solaris 11 and Oracle Ops center 12c in the data center environment etc.,
• Access the application/web admin console to perform various tasks (e.g. deploy ear/war files. portal applications, create domain instances, etc.)
• Respond to NSM/HP OVO alarm alerts i.e., file system capacity, heartbeat of servers down & alarms coming from simulation tests
• Created/Clone/migrate RHEL virtual machines in vCenter clusters ESXi 5 server
• Remote connect to ILO/ILOM/ALOM via web console/service processor to monitor/build and manage local and remote systems
• Utilized RHEL/Solaris CLI for administrator tasks (, stop/start node agents, interfaces etc.,)
• Request/install new Certificates on Application and Web Servers
• Coordinate with SAN team to request storage LUNS for configuration on the Solaris/Rhel boxes
• Performed RHEL LVM operations after installation (i.e. expanding logical volumes, creating a physical volumes
• Investigate/troubleshoot system/application/web site failures, examine all server log files (e.g. error log, access log, messages, error codes ….); gather information for problem resolution, files as needed
• Planned/executed/deployed the release of software versions, hot fixes and operating system packages to multiple servers and pre-prod systems via RHN, puppet, subversion
• Collaborated/supported Oracle DBA team/Webcenter as needed.
• Performed hardening of servers and audit compliance address HUD security scans findings of risk levels (high, medium etc., ) and remediation of security vulnerabilities
• Implemented solutions for performance issues on multiple Application, Web and Database servers
• Updated Emulex HBA card firmware, backup and restore
• Modify/created start/stop scripts; shutdown/reboot servers and stop/start/services
• Facilitate software change requests for releases, storage, file system configuration, cluster nodes etc.,
• Modify network interfaces file, hosts, iptables, decommission Solaris servers and scrub disks
• Research/troubleshoot complex problems to ensure timely and accurate resolution of system anomalies before they impact operations

Confidential

Sr. Unix/linux Technical Consultant

Responsibilities:

• Utilized the Unix Linux CLI to administer tasks and troubleshoot various types of J2EE software component issues
• Travel to site location to conduct training and investigate server/applications issues
• Build Solaris/RHEL servers including jumpstart/kickstart servers
• Performed the network, port validation checks, resolved DNS common issues within university environment
• Updated routing tables based on networking diagrams; tracked/monitored system performance and activity
• Investigated network related problems in, Solaris, RHEL, servers; in test and production
• Implemented Solaris Container/zones and resource pools for the universities
• Applied, tested, and executed software releases and operating system patches.
• Created several setup properties scripts prior for install of software components & created LDAP encryption key
• Analyzed system/application failures, examined all system and application log files (e.g. HTTP error log, event log); gathered information for problem resolution
• Requested new SSL Certificates for Sun ONE Application/Web Servers updated/installed
• Investigated/troubleshoot problems that might arise with applications; included platform hardware estimates and recommendations
• Developed and maintained installation and configuration procedures.
• Worked with college system administrators on technical and user-related issues
• Implemented and supported the integration of LDAP tier with other applications; integrated SunGard Banner with the Luminis Portal tier
• Documented the install process, the location of software, and also demonstrated usage and functions of the software
• Migrated data from Luminis III.3.3 to Luminis Platform IV (imp, exp); used standard SQL activities on various databases server
• Accessed the java administrator console to perform various tasks (e.g. deploy ear files. portal applications, create instances, etc.);
• Worked closely with supporting (developers) during the new software version releases/revisions/hot fixes, JDK, scp these files from development servers to the appropriate Luminis platform test environment utilized patch/pkg, rpm, yum management to install releases within the production environment
• Facilitated software change requests, defects, new development requests etc.
• Administered the integration and data/system integrity with all interconnected portal technologies such as but not limited to: SunGard Banner ERP, WebCT, Banner Self-Service and Internet Native
• Implemented the middle-tier for integration/SSO by configuring banner forms parameters in OEM; added links in the luminis portals, tested
• Created service completion and follow-up report to send documentation to client

Confidential, Alexandria, VA

Unix/Red Hat Administrator

Responsibilities:

• Established, administered, maintained & monitored Day-to-Day Operations for the Army/Navy/Marines multiple Solaris/RHEL TOPS, Web servers, Application servers, Database servers, other related systems and enterprise applications worldwide in the test, development and production environment for the data transmission of cargo documents
• Build TOPS servers using Solaris/RHEL system CD & jumpstart/kick start disk, loaded Tops Baseline CD
• Utilized Solaris/RHEL CLI for administrator tasks
• Implemented deployments, addressed security vulnerabilities, web application error messages, log file activity, managed disk usage, user/file systems management, network activity, system failure, site conversions etc.,
• Performed Solaris 9/10, RHEL 3/4/5 installs/upgrades, loading/testing/deploying of TOPS software releases & revisions, OS patching and rpm management
• Configured Network File System (NFS) Server, Client side NFS
• Reviewed weekly scan results report addressed the vulnerabilities based on STIG/checklist requirement
• Applied recommended Patches/ on a regularly scheduled basis; requested new SSL Certificates for Sun ONE Application/Web Servers updated/installed
• Acted as a key resource supporting internal application developers and functional testers of the Defense Personal Property System (DPS) in their daily work on the TOPS, web, application & database servers
• Performed TCP/IP utility functions (ping, trace route, route add/delete, ifconfig)
• Viewed system logs and activities on all servers for data transmission/network discrepancies
• Installed CWA updates on Sun One Application servers; PPQWeb Deliverable on the Web server ;Deployed the PPCIG and PPPQWEB ear files
• Participated in the TOPS Security Protocol implementation (secure replacement for telnet (SSH)
• Automated tasks using bash\bourne shell scripts, at, and cron
• Diagnosed and resolved network services issues such as, DNS, NFS, RADIUS
• Created/managed Solaris Volume Management (LVM) File systems, added swap
• Coordinated with Storage team to managed/configure LUNs and StorEdge Raids in SAN infrastructure
• Conducted software/hardware system testing of transmitting data from DPS to TOPS servers
• Troubleshoot, analyzed and coordinated system outages and interruptions
• Utilized Application Server Tools (admin GUI console, etc.) to create instances, connection pools, JDBC resources, deployment etc.,
• Assisted the DPS dev/functional team with redesigning the TOPS application data model Facilitated software change requests, defects, new development requests etc; submitted originating users’ emergency Engineering Change Proposal (ECP) forms to CCB
• Trained the level II support on the contents of survival kits prior to deploying to the production sites in the OCONUS & CONUS
• Participated in the review (audit) of security documents in the Certification and Accreditation C&A of a major Information system & Participating in weekly change control meeting (and supported the implementation of CM activities
• Regularly reviewed security bulletins, checked OS vendor web sites for recommended security patches
• Created and maintained documentation and procedures for System Administration support
• Assisted the DPS dev/functional team with redesigning the TOPS application data model to support multiple platforms, resulting in greater efficiency, versatility and interoperability

Confidential, Chantilly, VA

Red Hat Linux Consultant

Responsibilities:

• Worked with IT manager and database administrators to implement Cameleon in to new technology.
• Provided RHEL tasks and maintenance by executing CLI activities and GUI
• Setup automatic download and install of software updates, manually download packages from RHN
• Monitored/troubleshoot & resolve problems with servers down, no local database connection available, failure to connect to web application, unable to upload and reconcile invoices (e-Invoicing );
• Performed immediate analysis of customer problems and directed the implementation of corrective action
• Troubleshoot, analyzed and coordinated system outages and interruptions
• Provided support of purchase manger web-based applications
• Provided new client setup and acct management, addressed web, software, networking, and other IT-related issues
• Supported electronic file generation, file access, file transfer (SSH) and receipt procedures
• Performed remote troubleshooting of transmission problems

Confidential, Bethesda, MD

Unix/ Linux Administrator

Responsibilities:

• Collaborated with clients to obtain completed installation requirement blueprints
• Established one of the QA test staging areas to configure the specified stage area: by indicating version of software to be shipped, the site mode name and how many optimizer streams used
• Utilized Sun Solaris and RHEL CLI & GUI for system & user acct mgmt; performed package mgmt.
• Installed Solaris /7/8/9 OS and add-on packages; exploded shipped compressed files onto the hardware
• Created/modified network interfaces (set IP address, set subnet mask, configure DNS).
• Used HP Open view to monitor network devices and modem pool activity; viewed system logs and activities on all servers for discrepancies
• Involved with configuration and hardware standards development for data center wide utilization, across multiple platforms.
• Created symbolic linked after pre-installation process; modified site configuration files
• Manually went through directory structure to verify that all custom components were populated
• Assembled and compressed the specified stage area into a tar file and shipped via SSH to the customer production environment
• Troubleshoot, analyzed and coordinated system outages and interruptions
• Supported backup and recovery operations at call base centers using RAID management in SAN environment
• Created mount points specific to each dialer (e.g., mosaix, davox, melita)
• Automated tasks using bash/bourn shell scripts and cron
• Troubleshoot common Analyzer issues in Oracle Enterprise manager; (import, licenses, login, password )