Web.com
Atlanta, Georgia
UNIX Systems Administrator
July 2007 - Present

Seabridge, Inc.
South San Francisco, California
Systems Consultant
Mar 2004 - Present

• Conduct pro-active network penetration testing, security auditing and handle firewall administration
• Deploy and maintain server infrastructure to support J2EE fan loyalty portal application using Apache 2.0 and Tomcat 5.5 running on RedHat Fedora Core 4 servers
• Deploy and maintain server infrastructure for MySQL 4.1 on a RedHat Fedora Core 4 server with RAID5 storage array
• Maintain primary and secondary BIND9 DNS servers for company domains running on Fedora Core 4 servers
• Maintain Postfix Mail Transport Agent on all Fedora Core 4 servers
• Assisted in migrating portal applications source into a unified build

UnderGrid Network Services
Dallas, Georgia
Consultant
Jan 1997 - Present

• Dual Postfix MTA MX servers using centralized PostgreSQL mapped configuration and extensive anti-spam rules utilizing SpamAssassin and Postfix Grey-list daemon running on Debian Linux Xen virtual servers
• Secondary and tertiary BIND9 DNS servers running on Debian Linux Xen virtual servers
• Stealth primary BIND9 DNS server running on Debian Linux
• Central Cyrus IMAP/POP3 mail servers using centralized PostgreSQL configuration running on Debian Linux
• Multiple Apache 2.0 web servers running on Debian and Fedora Core 6 Linux servers
• Tomcat 5.5 running on Fedora Core 6 Xen virtual servers
• Extensive use of Xen virtualization on both Debian and Fedora Core 6 Linux servers to consolidate hosted environment
• Nagios networking monitoring with Groundwork Foundation/Status Viewer of all servers and client maintained servers
• Perform custom coded e-commerce credit card processing to web store fronts for several clients on various Linux hosted platforms
• Centralized server authentication using OpenLDAP on multiple directory servers including replication of data
• Performed forensics on a compromised client RedHat Linux machine
• Worked on centralized authentication among a homogeneous operating system environment consisting of Debian, RedHat and Mandrake Linux along with Windows NT 4.0 Server, Windows 2000 Professional and Netware 5

Reflex Security, Inc.
Atlanta, Georgia
IT Administrator
Dec 2006 - Jun 2007

• Provide IT support for company staff
• Perform hardware and software upgrades of all office servers
• Maintain Samba 3.0 Windows Networking servers for office file and print sharing
• Maintain a dozen Debian Linux servers on-site running core services
• Exim, Courier IMAPd, Apache, Subversion, OpenVPN, DHCP
• Maintain Debian Linux servers off-site at co-location site
• Postfix, Dovecot, Apache
• Maintain remote Windows 2003 Exchange server
• Maintain Barracuda spam firewall appliance
• Install and manage new network backup server
• Administrate office VPN certificate issuance
• Install and administer multiple VMWare ESX servers
• Install and administer XenSource Enterprise server
• Handle installations of new developer Debian Linux workstations
• Provide developers with Debian issues as needed

Tandberg Television, Inc.
Duluth, Georgia
Senior Network Operations Center Engineer
Jul 2006 - Nov 2006

• Provide telephone support for all Tandberg Video On-Demand systems at customer installations within a 24/7 NOC environment
• Remote configuration turn-up of Tandberg VOD Catcher servers on MSO client sites
• Troubleshoot issues with asset distribution from content provider pitcher to MSO BMS

NTT Multimedia Communications Laboratories, Inc.
Palo Alto, California
Network Administrator
Apr 2001 - Jul 2006

• Perform hardware and software upgrades of all office servers
• Maintain a dozen Debian Linux servers, originally operating under BSD/OS or other BSD operating system
• Maintain internal and external Apache 2.0 web servers
• Maintain stealth primary, public secondary and tertiary BIND9 DNS servers
• Maintain Samba 3.0 Windows Networking servers for office file and print sharing
• Deploy and maintain Sendmail 8.13 Mail Transport Agent using central LDAP mapped configuration
• Maintain all Cisco routers and switches handling dual-stacked network
• Maintain all Foundry and Extreme Network switches
• Responsible for 30KVA Liebert NX 3-phase UPS purchase and installation in server room
• Network-wide monitoring with SMS alerts using Nagios and Groundwork Foundation/Status Viewer
• Install and maintain dual Debian Linux bastion host with high availability heartbeat monitoring for remote access to network
• Install and maintain office-wide AMANDA network backup to 30 cartridge AIT tape library and 7 cartridge DLT tape library
• Ported several outdated Tcl/Tk web scripts to PHP
• Developed Shell, Perl or Python scripts to automate most frequent administrative tasks

Netsurfer, Inc.
Atlanta, Georgia
Software Engineer/Network Administrator
Mar 1999 - Jan 2001

• Managed several Debian Linux servers handling Sendmail, Apache and Samba
• Managed two Windows NT 4.0 servers running IIS and MS-SQL for client software installation tracking
• Handled Vertias BackupExec network backups of the servers
• Worked with client backend integrations with billing and authentication systems
• Deployed Oracle 8 on Debian Linux for large client backend integration
• Managed primary and secondary BIND8 DNS servers on Debian Linux

SouthNet Telecomm Services, Inc.
Atlanta, Georgia
Senior Systems Administrator
Oct 1997 - Feb 1999

• Design and deploy 55 metro SuperPOPs handling remote dial-up and Voice over IP access using Ascend Communication equipment
• Several Debian Linux handling a full NNTP news feed, Sendmail MTA, RADIUS, Apache 1.3 web server, MySQL
• Managed two junior administrators and joined in on-call rotation with Netsaint network monitoring sending out pager alerts
• Managed Windows NT 4.0 server running MS-SQL and billing software package
• Coordinated with all bandwidth providers to establish external BGP peering sessions at all POPs

World Lynx, Inc.
Little Rock, Arkansas
Customer Support Specialist
Dec 1996 - Jan 1998

• Provide technical support to dial-up and web hosting customers
• Handled domain registration administration dutied, coordinating with system administrator and webmaster
• Provided assistance to system administrator with system upgrades and outages

Los Medanos College
Pittsburg, California
2006

University of Phoenix
San Jose, California
2004 - 2005

Stephen F. Austin State University
Nacogdoches, Texas
1993 - 1995

• Developer status since April 2001
• Dozen packages under maintainership, several working along with co-maintainers
• Manage current Xen virtualization packaging team for Debian

• Developer with commit access to source code repository
• Ported network plugins to support either IPv4 or IPv6