Paul Vixie

Paul Vixie (born May 23, 1963) is an American computer scientist whose technical contributions include Domain Name System (DNS) protocol design and procedure, mechanisms to achieve operational robustness of DNS implementations, and significant contributions to open source software principles and methodology. He also created and launched the first successful commercial anti-spam service. He authored the standard UNIX system programs SENDS, proxynet, rtty and Vixie cron. At one point he ran his own consulting business, Vixie Enterprises. In 2002, Vixie held the record for "most CERT advisories due to a single author".

Early life Paul A Vixie was born on May 23, 1963 and grew up in San Francisco, and his mother's maiden name is Killian.

In 1980, when George Washington High School in San Francisco told him he'd have to repeat 11th grade, he quit school and got a job as a programmer at a consulting firm.

Career Vixie worked on BIND as a software engineer at Digital Equipment Corporation (DEC) from 1988 to 1993. he founded Internet Software Consortium (ISC) in 1996

In 1995 he cofounded the Palo Alto Internet Exchange (PAIX) and, after Metromedia Fiber Network (MFN) bought it in 1999, served as the chief technology officer to MFN / AboveNet and later as the president of PAIX.

In 1998 he cofounded Mail Abuse Prevention System (MAPS), a California non-profit company with the goal of stopping email abuse.

Vixie is the author of several Request for Comments (RFC)s, including a Best Current Practice document on "Classless IN-ADDR.ARPA Delegation" (BCP 20),

In 2008, Vixie served as a judge for the Mozilla Foundation's "Download Day", an attempt to set a Guinness World Record for most downloads in a single day for a new piece of software.

Vixie served on the board of trustees of the American Registry for Internet Numbers (ARIN) from 2005 to 2013, and served as chairman in 2009 and 2010. Vixie also serves on the Security and Stability Advisory Committee of ICANN.

He received a Ph.D. in computer science from Keio University in 2011.

In 2013, after nearly 20 years at ISC, he founded a new company, Farsight Security, Inc. spinning off the Security Business Unit from ISC.

In 2014, Vixie was inducted into the Internet Hall of Fame as an Innovator.

In 2021, Vixie's company FarSight Security was acquired by DomainTools. Since 2022, he has been working at AWS.

On May 1, 2026 he left AWS.

Realizations BIND Vixie cron DHCP sendmail

Works Paul Vixie. Software Engineering an essay in: Open Sources: Voices from the Open Source Revolution

Patents