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Linux System Administrator Resume

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Austin, TX

SUMMARY:

  • Linux System Administrator with more than 6 years of experience providing supporting large businesses.
  • Highly proficient in a range of computer systems, languages, tools, and testing methodologies.
  • Major strengths include a strong work ethic and excelling in a detailed - oriented, deadline driven work environment.
  • Effective communicator who works well individually or on a team at all levels and from diverse professional disciplines.

TECHNICAL SKILLS:

Technical Skills: Windows 95, 98, XP, Vista, Widows 7, Windows 8, Windows 8 RT, Enterprise Server NT,2000, 2003, 2008, 2012 Linux Command line interface (Scripting), Hyper Terminal, Remote Desktop, ILO (Server Remote Desktop), Telnet Client, Real Term Telnet, Proxy Servers, C++, BASH Scripting, Telnet, Remote Desktop Services Selina, IP Tables, Python Scripting, NIS, KVM, cPanel, Plesk, Nagios.

Hardware Skills: Blade Servers (HP Storage Works 20 Modular Smart Array HP MSA I/O Modules Storage Works 1500cs Modular Smart Array, HP P2000 G3 MSA Array Systems, HP DL380 G3, EVA 8100 Switches, Routers, Network hosts (Cisco, Brocade), Servers (Linux/Unix, Windows), Datacom/Telecom installation (CAT6, Fiber, Coax), Facility, Data Confidential infrastructure and equipment (UPS, Generators, Crash carts, CRAHs, PDU s, Floor Coolers) CAT Cabling

Systems: UNIX, Linux, Ubuntu/Fedora/ Cent OS/ Red Hat Enterprise 5-7.3/ Ubuntu Server 1 .04, Windows NT/2000/XP/2K3/XP/Vista/ Windows 7/8/8 RT/10, Novell NetWare, Mac OSX, Putty, SQL Server, Citrix, V-Sphere, Solaris 11, MatterMost

Software Applications: Microsoft Office Professional Plus 2010 and 2013, Adobe Reader, Adobe Professional, Lync, Outlook 2010 and 2013, Snapfish Inventory Confidential, SMBD (Inventory Tool Confidential ), OMSA, Blade Logic, Remedy, Workforce Confidential, Apache, MySQL, Postgre SQL, Active Directory, LDAP, SSL certificates, OS Hardening by adding Fail2Ban, VM-Ware, V-Spere, Atlassian (Jira and Confluence), Puppet, Chef, Tomcat, API Gateways, Load Balancers, MySQL, Redis, MongoDB, Middleware

PROFESSIONAL EXPERIENCE:

Confidential,Austin, TX

Linux System Administrator

Responsibilities:

  • Setup a new Open Stack environment for Confidential, which included setting up CEPH on 8 Storage Servers, four Compute servers and a controller.
  • Built and maintain a MaaS (PXE) server that is in production in the research lab.
  • Architecture of our 8 CEPH servers, which include setting up 8 servers with CEPH, getting them clustered and maintaining the servers in Nagios by monitoring services
  • Installs, configures, and maintains Linux based operating systems in a world-wide enterprise environment consisting of Red Hat Linux.
  • Maintain services are running (Apache, MySQL, SNMP, Fail2ban, PHP, SMTP, NTP),
  • Created an PXE, Samba, Ansible password 90-day cycle change Confidential, RAID 5, 0 and 1 to maintain and manage the storage servers; setup a disk kill server to remove all confidential information using a Python script to write random data to the disk or all zero’s
  • Perform daily system monitoring using Nagios and Nedi to verify the integrity and availability of all hardware, server resources, jobs and processes; Setup and added machines to Nedi and Nagios
  • Restart service on DNS, stand-alone server, and blade servers (NNTP, NTP, SNMP, Raccoon, DHCP, Radius, hhtp, ftp, MySQL, syslog)
  • Design network topology for security, load balancing, scalability, fault-tolerance, and optimum performance
  • Configure servers for storage, including creation of VDs and all supported RAID levels. (CEPH, Samba and LDAP)

Confidential,Austin, TX

Linux System Administrator

Responsibilities:

  • Perform daily system monitoring to verify the integrity and availability of all hardware, server resources, jobs and processes
  • Restart service on DNS, stand-alone server, and blade servers (NNTP, NTP, SNMP, Raccoon, DHCP, Radius, http, ftp, MySQL, syslog)
  • Remove hard drives from the RAID array and prep for replacement. Preform maintenance on a locked up server through rescue mode or the console server.
  • Maintain the print server by monitoring, firmware and software updates.
  • Perform technical troubleshooting and apply judgment to resolve complex issues, Restarting VPN’s, Out and In Servicing servers
  • Out of band Confidential including troubleshooting hardware issues via an out of band Confidential interface (WSMan, RACADM, REST)
  • Start the CEPH build for our New Open Stack Environment, clustering 25 servers, installing CEPH using Ubuntu 15.10 as the OS. Placing the machine in monitoring to verify that services were running.
  • Compress hard drives that alerted MPFS and created a screen session to monitor the progress of the compression.
  • Restart service for DNS servers using a web based C-panel and verify that the server is up by pinging it and using MTR to make sure there is no packet loss.
  • Experience in applying patches and plug-ins for Jboss Application Server .
  • Restart VPN’s that are locked up (SNMP/CONN) using vpnhost to restart the services virsh destroy, virsh restart

Confidential,Austin, TX

Linux System Administrator

Responsibilities:

  • Performs installation, customization and maintenance of the network and server operating system and system software products in support of business processing requirements.
  • Manage service impacting events and track resolution within established service level commitments by using appropriate diagnostic procedures, tools and processes to prevent a network outage
  • Experience in managing systems via an automated configuration Confidential system such as Chef, Ansible, BladeLogic, Puppet. Experience creating and managing native OS packages desirable.
  • Use V-Sphere to set computer to last known good configuration to prevent a boot loop, change the VLAN, and request increase space in hard drive
  • Maintain the CEPH storage clusters for our storage team. Working closely with Storage team to maintain storage services.
  • Prescribes system backup / disaster recovery procedures and directs recovery operations in the event of destruction of all or part of the operating system Clearing log files, foreign disk, setting hot spares) or other system components
  • Performed service restoration of incidents on Windows and UNIX servers and escalating to the appropriate team as needed (Network Team, Storage, VM Team, and L3)
  • Installs, configures, and maintains Linux based operating systems in a world-wide enterprise environment consisting of Red Hat Linux.

Confidential,Austin, TX

Linux System Administrator

Responsibilities:

  • Execute on day-to-day operations of the data Confidential, including monitoring of power, space and environmental conditions against SLA provided by the vendor.
  • Design network topology for security, load balancing, scalability, fault-tolerance, and optimum performance
  • Configure servers for storage, including creation of VDs and all supported RAID levels. (CEPH, Samba and LDAP)
  • Install and configure Web and Application Servers on Linux and the same procedure on MySQL Maintain the CEPH storage clusters for our storage team. Working closely with Storage team to maintain storage services.
  • Diagnostics - update firmware MSA 20 I/O Modules to version 2.08
  • Maintain MSA cabinet by keeping equipment in working condition and a running inventory
  • Initialized two 3PAR server cabinets (machine name, static IP addresses, DNS, default gateway, firmware updates)
  • Fix and upgrade servers and networking hardware (Controller batteries, Hard Drives in RAID 6 Configuration, SCSI I/O Modules, PSU, Fans, motherboard in a Blade)
  • Installs, configures, and maintains Linux based operating systems in a world-wide enterprise environment consisting of Red Hat Linux.

Confidential,Austin,TX

Linux System Administrator

Responsibilities:

  • Removed failed hard drives from blade servers and servers (hot swapping),
  • Remote into server using ILO to check the status, health and to mount software
  • Decommissioned servers and racks to be reclaimed and sent to other data centers
  • Automation tools using standard scripting languages PowerShell (Windows), Bourne (Linux), TcL (Cisco) and REXX(MVS) to improve stability and increase efficiency of system
  • Implement Low Impact infrastructure\application changes such as upgrades and patching of operating systems and non-business critical applications.
  • Design network topology for security, load balancing, scalability, fault-tolerance, and optimum performance
  • Configure servers for storage, including creation of VDs and all supported RAID levels. (CEPH, Samba and LDAP)
  • Installs, configures, and maintains Linux based operating systems in a world-wide enterprise environment consisting of Red Hat Linux.

Confidential,Austin,TX

Client Support Services

Responsibilities:

  • Provides first level support in the inbound contact Confidential for Pro Support warranties
  • Change the configurations in BIOS to adept to installing a different OS, through the use of USB or CD for direct boot order.
  • Update drivers on tablets, computers and laptop computer by determining the faulty issues by researching it in Device manager.
  • Develop, implements and operate all network\system infrastructure and procedures;
  • Monitor and manage batch schedules to ensure service levels is being delivered on a daily basis
  • Troubleshoot issues and designing technical solutions for a range of dynamic environments (Windows and Linux)
  • Installs, configures, and maintains Linux based operating systems in a world-wide enterprise environment consisting of Red Hat Linux.
  • Implement Low Impact infrastructure\application changes such as upgrades and patching of operating systems and non-business critical applications.
  • Design network topology for security, load balancing, scalability, fault-tolerance, and optimum performance
  • Configure servers for storage, including creation of VDs and all supported RAID levels. (CEPH, Samba and LDAP)

Confidential,Austin,TX

Student Teacher

Responsibilities:

  • Taught student how to take CompTIA A+, Network+, Server+ and Linux+
  • Explain complex principles of Networking such as the class A-E subnets and how to properly subnet a network.
  • Explain how troubleshoot a server and a desktop computer in a logical manner.
  • Job shadowed the IT staff and assisted them with running cables to expand the network

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