D Brent Chapman

Chapman is a networking professional in Silicon Valley. He has designed and built Internet firewall systems for a wide range of organizations, using a variety of techniques and technologies. He is the founder of the Firewalls Internet mailing list, and creator of the Majordomo mailing list management package. He is the founder, principal, and technical lead of Great Circle Associates, Inc., a highly regarded strategic consulting and training firm specializing in Internet networking and security...See more

Chapman is a networking professional in Silicon Valley. He has designed and built Internet firewall systems for a wide range of organizations, using a variety of techniques and technologies. He is the founder of the Firewalls Internet mailing list, and creator of the Majordomo mailing list management package. He is the founder, principal, and technical lead of Great Circle Associates, Inc., a highly regarded strategic consulting and training firm specializing in Internet networking and security. Over the last 15 years, he has worked in a variety of consulting, engineering, and management roles in information technology, operations, and technology marketing for a wide range of employers and clients, including the Xerox Palo Alto Research Center (PARe, Silicon Graphics, Inc. (SGI), and Covad Communiction See less