Short Cut Index:

• Professional Experience
  • System/Network Administration
  • Operating Systems
  • Languages
  • Communications Protocols
  • Application Development
  • Hardware
  • Presentations, Speeches, Papers and Talks:
• Employment History
• Professional Societies

Professional Experience:

System/Network Administration:

• Installed and administered multiple UNIX systems and TCP/IP based networks with coexisting Novel NetWare and Banyan Vines networks.
• Registered and managed several domains under the Internet Domain Naming Service.
  • BDCustom.Com
  • CommandCorp.Com
  • ISS.Net
  • SafeSuite.Com
  • WittsEnd.Com
  • WMAS.Com
  • Multiple Virtual domains
• Currently manage Primary DNS name service for several Internet Domains.
  • BDCustom.Com
  • Bythesea.Org
  • CommandCorp.Com
  • ISS.Net
  • SafeSuite.Com
  • WittsEnd.Com
  • WMAS.Com
  • Multiple Virtual domains
• Registered and manage class B Internet address "130.205".
• Managed established TCP/IP networks including multiple levels of subneting.
• Installed and managed Internet Gateways, Routers and Security Firewalls.
• Managed networks utilizing combinations of DNS/YP/NIS+ with SNMP.
• Integrated gateways from SMTP E-Mail backbones to Cc:Mail systems on Novell NetWare and Vines Mail on Banyan networks.
• Operate and maintain personal hardware and software running SCO UNIX and LINUX on a TCP/IP network with a dedicated Internet connection.
• Manage two Web servers on the World Wide Web, one of which is a personal Web server (http://www.wittsend.com).
• Integrated software to form and operate an ssl-compliant secure Web Server (https://www.wittsend.com).
• Installed and managed Internet firewalls, packet filters, screened subnets, and bastion hosts for Internet security.
• Installed and managed encrypted link software between remote sites.

Operating Systems:

• AIX 3.2, 4.1
• AT&T System V 3.2 UNIX
• BSD 4.2, BSD 4.3
• CDC 6000 series Scope 3.3
• Concurrent DOS
• CP/M
• DR-DOS
• FreeBSD
• HP/UX 9.x, 10.x
• Harris HCX/UX
• Harris/Lanier HDOS & MIPS.
• IRIX
• Interactive UNIX
• LINUX
• Masscomp Real Time UNIX
• Microsoft XENIX release 3
• Microware UNIX
• MINIX
• Motif
• Motorola/Microware OS-9
• MS/PC DOS
• MS-Windows, Windows for Workgroups, MS-Windows 95/98
• NetBSD
• Open Look 3.0, 3.1
• OpenBSD
• OS/2
• SCO UNIX 3.1, SCO UNIX 3.2, SCO ODT 1.0, SCO ODT 2.0, SCO XENIX 2.3.
• Solaris 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, Solaris 7
• Solaris X86 2.4, 2.5, 2.6, Solaris 7
• SunOS 4.0.x, 4.1.1, 4.1.2, 4.1.3
• UnixWare
• Windows NT 3.51, Windows NT 4.0, Windows 2000
• X Windows X11R4, X11R5, X11R6
• Xenix
• XINU (Embedded Controllers)
• XView
• ZCPR / ZCPR2

Languages:

• Extensive "C", "C++"
• Extensive Scientific Fortran
• Shell programing in:
  • UNIX Bourne shell
  • Korne Shell
  • C Shell
  • BASH
  • awk
  • lex
  • rpc
  • sed
  • yacc
  • Perl
  • tcl/tk
• World Wide Web programming with HTML and CGI.
• Intel Assembler:
  • 8086 assembly
  • 80186 embedded control assembly.
  • 286 assembly
  • 386 assembly
  • 486 assembly
  • pentium assembly
• Motorola 6800 and 68000 series assembly language.
• Zilog z80 microprocessor assembly language.
• Texas Instruments DSP microcode assembly.
• CDC 6000 series Assembly Language
• PDP-8 Assembly
• PDP-11 Assembly

Application Development:

• System administration utilities and scripts.
  • User account administration
  • network administration
  • and system maintenance.
• Network drivers and applications.
  • UNIX
  • XENIX
  • LINUX
  • MS-DOS
  • MS-Windows
  • MS-Windows/NT.
• Diagnostic programs and development tools.
• Developed speech recognition software including kernel level device drivers.
  • SCO UNIX
  • SCO XENIX
  • SunOS
  • Solaris.
  • MS-DOS
  • MS-Windows
  • MS-Windows NT.
  • MS-Windows 95.
• Designed intelligent controller firmware and applications for networks and peripherals.

Communication Protocols:

• IPv4
• IPv6
• TCP
• UDP
• ICMP
• IPSEC
• SSL
• IPX
• SPX
• Vines
• SLIP
• PPP
• Ethernet / IEEE 802.3
• TokenRing
• SMTP
• FTP
• TELNET
• SSH
• POP / POP3 / APOP
• POP3S
• IMAP
• HTTP
• HTTPS
• RIP
• SNMP

Hardware:

• Sun Sparc 2, Sparc 5, Sparc 20, Sun SX, Sun 360, Sun/4, and Sun 386i workstations and servers.
• IBM RS/6000 and Power PC.
• HP 700 Series Workstations.
• SGI Workstations.
• MIPS Magnum (MIPS 3000) and MIPS 4000 workstations.
• Masscomp 5600 supermini.
• IBM compatible 386/486/pentium class systems and peripherals.
• PC Peripheral card hardware development for networking and speech recognition.
• CDC 6500 mainframe.

Presentations, Speeches, Papers and Talks:

• September 1993, Atlanta Unix User Group: Presentation: "Speech Recognition for UNIX"
• February 1995, Atlanta Linux Enthusiasts: Presentation: "Using DOSemu"
• March 1996, Ames Research Center, System Security Conference: Presentation: "Internet Security Scanner"
• May 1996, AirForce Information Warfare Center: Presentation: "Internet Security Scanner"
• June 1996, Atlanta Unix User Group: Presentation: "Identifying System Security Vulnerabilities"
• June 1997, Atlanta Linux Showcase: Presentation: "Anatomy of an Attack, Analysis of a Hacker Intrusion"
• June 1997, Atlanta Linux Showcase: Discussion: "NT / Linux Integration"
• June 1997, Atlanta Linux Showcase: Forum: "Linux Security Open Forum"
• November 1997, Atlanta Linux Enthusiasts: Presentation: "Anatomy of an Attack, Analysis of a Hacker Intrusion"
• January 1998, USNIX Security Symposium: Birds Of a Feather: "Disaster Recovery, Planning for Disasters of the Unatural Kind"
• February 1998, Atlanta Unix Users Group: Presentation: "Tales From Ground Zero: Lightening!"
• October 1998, Atlanta Linux Showcase: Presentation: "Cryptography on Linux"
• May 1999, ISS Connect: Presentation: "Securing Linux / Unix Systems"
• August 1999, LinuxWorld Expo: Tutorial: "Linux Security for the System Administrator"
• October 1999, Atlanta Linux Showcase: Presentation: "Security and the Open Source Software Model"
• November 1999, Atlanta Unix Users Group: Presentation: "Securing Linux / Unix Systems"
• February 2000, LinuxWorld Expo: Tutorial: "Basic Security for the System Administrator"
• February 2000, LinuxWorld Expo: Tutorial: "Advanced Security for the System Administrator"
• February 2000, LinuxWorld Expo: Birds of a Feather: "Cryptography in the Linux Kernel"

Work History:

• 1995 - Present: Internet Security Systems, Inc. - Atlanta, GA
  • Senior Researcher and Fellow
  • Senior Security Consultant
  • Project Lead - UNIX Internet Security Scanner
  • X-Force - Senior Researcher & Fellow
  • System/Network Administrator
• 1995 - Present: Command Corp, Inc. - Duluth, GA
  • System/Network Administrator
  • Network Architech
• 1994 - Present: Callanwolde Fine Arts Center
  • System Administrator
  • FoxPro Data Base Developer
  • UNIX Consultant
• 1991 - 1995: Command Corp, Inc. - Duluth, GA
  • V.P. Engineering
  • Senior Engineer
  • System Administrator
• 1990 - 1991: Syntrex, Inc. - Atlanta, GA
  • Senior Design Engineer
  • Network Administrator
  • UNIX System Administrator
• 1978 - 1990: Harris / Lanier - Atlanta, GA
  • Senior Software / Hardware Design Engineer
  • UNIX System Programer
  • Network Administrator
  • Systems Administrator UNIX & XENIX Systems
• 1972 - 1978: WILX-TV Television Corporation of Michigan - Jackson MI
  • Broadcast Supervisor
  • Senior Broadcast Engineer
  • Senior Transmitter Engineer
• 1971 - 1975: Computer Institute for Social Science Research - Michigan State University
  • Staff Programmer.
• 1971 - 1972: WVIC AM/FM - Lansing, MI
  • Transmitter Engineer

Professional Societies:

• IEEE, Member
• IEEE Computer Society, Member
• Association of Computing Machinery (ACM), Member
• USENIX, Member
• Internet Society (ISOC), Member
• Amateur Radio Relay League (ARRL), Associate Member
• Atlanta Unix Users Group (AUUG), Member, Resident "guru"
• Atlanta LINUX Enthusiasts (ALE), Founding Member
• Samba Development Team, Developer