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Jonathan Bruce Postel (; August 6, 1943 – October 16, 1998) was an American
computer scientist A computer scientist is a scientist who specializes in the academic study of computer science. Computer scientists typically work on the theoretical side of computation. Although computer scientists can also focus their work and research on ...
who made many significant contributions to the development of the
Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
, particularly with respect to
standards Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object t ...
. He is known principally for being the Editor of the
Request for Comment A Request for Comments (RFC) is a publication in a series from the principal technical development and standards-setting bodies for the Internet, most prominently the Internet Engineering Task Force (IETF). An RFC is authored by individuals or ...
(RFC) document series, for
Simple Mail Transfer Protocol The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typ ...
(SMTP), and for administering the
Internet Assigned Numbers Authority The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, Autonomous system (Internet), autonomous system number allocation, DNS root zone, root zone management in the Domain Name Syste ...
(IANA) until his death. During his lifetime he was referred to as the "god of the Internet" for his comprehensive influence; Postel himself noted that this "compliment" came with a barb, the suggestion that he should be replaced by a "professional," and responded with typical self-effacing matter-of-factness: "Of course, there isn’t any 'God of the Internet.' The Internet works because a lot of people cooperate to do things together."


Career

Postel attended Van Nuys High School, and then
UCLA The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the C ...
where he earned his B.S. (1966) as well as his M.S. (1968) in Engineering. There he completed his Ph.D. in computer science in 1974, with Dave Farber as his thesis advisor. Postel started work at UCLA on 23 December 1969 as a Postgraduate Research Engineer (I) where he was involved in early work on the
ARPANET The Advanced Research Projects Agency Network (ARPANET) was the first wide-area packet-switched network with distributed control and one of the first computer networks to implement the TCP/IP protocol suite. Both technologies became the tec ...
. He was involved in the development of the Internet domain system and, at his instigation,
Vint Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
and
Bob Kahn Robert Elliot Kahn (born December 23, 1938) is an American electrical engineer who, along with Vint Cerf, first proposed the Transmission Control Protocol (TCP) and the Internet Protocol (IP), the fundamental communication protocols at the hea ...
developed a second set of protocols for handling data between networks, which is now known as
Internet protocol suite The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...
. Together with Cerf and
Steve Crocker Stephen D. Crocker (born October 15, 1944) is an American Internet pioneer. In 1969, he created the ARPA "Network Working Group" and the Request for Comments series. He served as chair of the board of the Internet Corporation for Assigned Nam ...
, Postel worked on implementing most of the ARPANET protocols. Cerf would later become one of the principal designers of the TCP/IP standard, which works because of the sentence known as Postel's Law. Postel worked with ARPANET until 24 August 1973 when he left to join
MITRE Corporation The Mitre Corporation (stylized as The MITRE Corporation and MITRE) is an American not-for-profit organization with dual headquarters in Bedford, Massachusetts, and McLean, Virginia. It manages federally funded research and development centers ...
. He assisted with Network Information Center, which was being set up at
SRI Shri (; , ) is a Sanskrit term denoting resplendence, wealth and prosperity, primarily used as an honorific. The word is widely used in South and Southeast Asian languages such as Assamese, Meitei ( Manipuri), Marathi, Malay (including In ...
by Elizabeth Feinler. In March 1977, he joined the
Information Sciences Institute The USC Information Sciences Institute (ISI) is a component of the University of Southern California (USC) Viterbi School of Engineering, and specializes in research and development in information processing, computing, and communications techn ...
at the
University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
as a research scientist. Postel was the RFC Editor from 1969 until his death, and wrote and edited many important RFCs, including RFC 791, RFC 792 and RFC 793, which define the basic protocols of the
Internet protocol suite The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...
, and RFC 2223, ''Instructions to RFC Authors''. Between 1982 and 1984 Postel co-authored the RFCs which became the foundation of today's
DNS The Domain Name System (DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources on the Internet or other Internet Protocol (IP) networks. It associates various informatio ...
(RFC 819, RFC 881, RFC 882 and RFC 920) which were joined in 1995 by RFC 1591 which he also co-wrote. In total, he wrote or co-authored more than 20 RFCs. Postel served on the
Internet Architecture Board The Internet Architecture Board (IAB) is a committee of the Internet Engineering Task Force (IETF) and an advisory body of the Internet Society (ISOC). Its responsibilities include architectural oversight of IETF activities, Internet Standards ...
and its predecessors for many years. He was the Director of the names and number assignment clearinghouse, the
Internet Assigned Numbers Authority The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, Autonomous system (Internet), autonomous system number allocation, DNS root zone, root zone management in the Domain Name Syste ...
(IANA), from its inception. He was the first member of the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
, and was on its Board of Trustees. He was the original and long-time .us
Top-Level Domain A top-level domain (TLD) is one of the domain name, domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. The top-level domain names are installed in the DNS root zone, root zone of the nam ...
administrator. He also managed the Los Nettos Network. All of the above were part-time activities he assumed in conjunction with his primary position as Director of the Computer Networks Division, Division 7, of the Information Sciences Institute at the University of Southern California.


DNS Root Authority test, U.S. response

On January 28, 1998, Postel, as a test, emailed eight of the twelve operators of Internet's regional
root nameserver A root name server is a name server for the root zone of the Domain Name System (DNS) of the Internet. It directly answers requests for records in the root zone and answers other requests by returning a list of the authoritative name servers for ...
s on his own authority and instructed them to reconfigure their servers, changing the root zone server from then SAIC subsidiary
Network Solutions Network Solutions, LLC, formerly Web.com, is an American-based technology company and a subsidiary of Web.com, the 4th-largest .com domain name registrar, with over 6.7 million registrations as of August 2018. In addition to being a domain name ...
' A.ROOT-SERVERS.NET (198.41.0.4) to IANA's DNSROOT.IANA.ORG (198.32.1.98). The operators complied with Postel's instructions, thus dividing control of Internet naming between the non-government operators with IANA and the 4 remaining U.S. Government roots at
NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...
, DoD, and BRL with NSI. Though usage of the Internet was not interrupted, Postel was threatened by US Presidential science advisor Ira Magaziner with the statement "You'll never work on the Internet again" and was ordered to end the test, which he did. Within a week, the US
NTIA The National Telecommunications and Information Administration (NTIA) is a bureau of the United States Department of Commerce that serves as the President of the United States, president's principal adviser on Telecommunications policy of the U ...
issued ''A proposal to improve technical management of Internet names and addresses'', including changes to authority over the Internet
DNS root zone The DNS root zone is the top-level DNS zone in the hierarchical namespace of the Domain Name System (DNS) of the Internet. Before October 1, 2016, the root zone had been overseen by the Internet Corporation for Assigned Names and Numbers (ICANN ...
, which ultimately, and controversially, increased U.S. control.


Death

On October 16, 1998, Postel died of complications from heart surgery in Los Angeles. He was recovering from a surgery to replace a leaking heart valve.Jon Postel, Internet Pioneer, Dies at 55 after Heart Surgery
Washington Post, 1998-10-18. Accessed 2016-09-09.


Legacy

The significance of Jon Postel's contributions to building the Internet, both technical and personal, were such that a memorial recollection of his life and his work forms part of the core technical literature sequence of the Internet in the form o
RFC2468
"I Remember IANA", written by
Vint Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
. The Postel Center at
Information Sciences Institute The USC Information Sciences Institute (ISI) is a component of the University of Southern California (USC) Viterbi School of Engineering, and specializes in research and development in information processing, computing, and communications techn ...
,
University of Southern California The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
, is named in his honor, as is the annual Postel Award. In 2012, Postel was inducted into the
Internet Hall of Fame The Internet Hall of Fame is an honorary lifetime achievement award administered by the Internet Society (ISOC) in recognition of individuals who have made significant contributions to the development and advancement of the Internet. Overview ...
. The Channel Islands' Domain Registry building was named after him in early 2016. Another tribute, "Working with Jon: Tribute delivered at UCLA, October 30, 1998"
RFC2441
, was written by Danny Cohen. Perhaps his most famous legacy is fro
RFC760
which includes a
robustness principle In computing, the robustness principle is a design guideline for software that states: "be conservative in what you do, be liberal in what you accept from others". It is often reworded as: "be conservative in what you send, be liberal in what you a ...
often called Postel's law: "an implementation should be conservative in its sending behavior, and liberal in its receiving behavior" (reworded in RFC 1122 as "Be liberal in what you accept, and conservative in what you send"). The Jonathan B. Postel Service Award is an award named after Postel. The award has been presented most years since 1999 by the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
to "honor a person who has made outstanding contributions in service to the data communications community." The first recipient of the award was Postel himself, posthumously. The award was created by
Vint Cerf Vinton Gray Cerf (; born June 23, 1943) is an American Internet pioneer and is recognized as one of "the fathers of the Internet", sharing this title with TCP/IP co-developer Robert Kahn. He has received honorary degrees and awards that inclu ...
as chairman of the
Internet Society The Internet Society (ISOC) is an American non-profit advocacy organization founded in 1992 with local chapters around the world. It has offices in Reston, Virginia, United States, and Geneva, Switzerland. Organization The Internet Society ...
and announced in ''"I remember
IANA The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet P ...
"'' published as RFC 2468.


See also

* * *


Notes


External links


postel.org
Research center at USC/ISI created in his honor. {{DEFAULTSORT:Postel, Jon 1943 births 1998 deaths Van Nuys High School alumni American computer scientists University of California, Los Angeles alumni Internet pioneers Place of birth missing