| IPv6: Understanding, Analysis & Implementation | IT Dojo 6/2012 | 
| SEC250 - CISSP | Interface Technical Training 11/2010 | 
| TCP/IP Weapons School | Black Hat USA 8/2008 | 
| Red Hat Enterprise Linux Network Services and Security Administration (RH253) | Red Hat 5/2008 | 
| Red Hat Linux System Administration (RH133) | Red Hat 9/2007 | 
| Network Troublingshooting Using Open Source Tools | Interop workshop 5/2007 | 
| ENTICE (V2.5D) | Stratus 2/2007 | 
| Troublingshooting Ethernet and Switched Networks | Interop workshop 5/2005 | 
| Network Forensics Day | Interop workshop 5/2005 | 
| Analyzing Application Performance | Interop workshop 5/2005 | 
| White Hat Toolbox Security Tools, Tricks & Traces | Hot Labs 12/2004 | 
| Cisco Internetwork Troubleshooting | Global Knowledge 1/2003 | 
| Interconnecting Cisco Network Devices | Global Knowledge 12/2002 | 
| Auditing Networks, Perimeters and Systems | SANS Institute 3/2000 | 
| Windows 2000 Troubleshooting | Global Knowledge 10/2000 | 
| Implementing Windows 2000 Network Infrastructure (2153) | New Horizons 10/2000 | 
| Frame Relay Internetworking | Global Knowledge 8/90 | 
| Implementing T1/T3 | Global Knowledge 7/99 | 
| Intenetworking Routers and Switches | Global Knowledge 6/99 | 
| Fast LAN Technologies | Learning Tree International, 4/98 | 
| Introduction to Cisco Router Configuration | American Research Group, 11/97 | 
| FDDI Network Analysis and Troubleshooting | Network General, 8/97 | 
| HP-UX 10.X Network Administration | Hewlett Packard, 7/97 | 
| HP-UX 10.X System/Network Admin for experienced users | Hewlett Packard, 4/97 | 
| Fiber Optic Cable Installation | American Research Group, 2/96 | 
| Fiber Optic System Design | American Research Group, 2/96 | 
| Network Performance Analysis & Baselining | Network General, 10/95 | 
| Advanced Network Analysis & Troubleshooting | Network General, 8/95 | 
| Signaling System 7 and Intelligent Networks | George Washington Univ., 5/95 | 
| Troubling Shooting with the Expert Sniffer Network Analyzer | Network General, 4/95 | 
| Ethernet Analysis and Troubleshooting | Network General, 4/95 | 
| Understanding ATM | American Research Group, 12/94 | 
| X-Window System Programming | Learning Tree International, 7/94 | 
| Object Oriented Programming with C++ | Stratus, 5/94 | 
| UNIX System V release 4 internals | AT&T, 2/94 | 
| Hands-On UNIX Networking | Learning Tree International, 5/93 | 
| NeXT Hardware Service | NeXT, 2/93 | 
| Stratus Intelligent Network Application Platform | DGM&S, 12/92 | 
| StrataLINK and StrataNet Administration | Stratus, 10/92 | 
| Common Channel Signaling 7 - Network Overview | AT&T, 8/92 | 
| Hands-On Internetworking | American Research Group. 6/92 | 
| FTX User Administrator | Stratus, 12/91 | 
| FTX2 Maintenance Course | Stratus, 12/91 | 
| NeXT System Administration | NeXT, 8/91 | 
| NeXT Interpersonal Computing | NeXT, 8/91 | 
| Resolving Data Communication Mysteries | Stratus, 6/91 | 
| NeXT Developer | NeXT, 9/90 | 
| Oracle Version 6 Database Architecture | Oracle, 5/90 | 
| Oracle Version 6 Database Administration | Oracle, 5/90 | 
| Sybase Performance and Tuning | Sybase, 3/90 | 
| Sybase APT Workbench | Sybase, 2/90 | 
| Micro/Mini & Micro/Mainframe Connectivity | ICS, 8/89 | 
| VOS System Architecture | Stratus, 4/89 | 
| Basic 6800 Microprocessor Family | Motorola Training, 8/88 | 
| Sybase Concepts and Facilities | Sybase, 1/88 |