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John Klensin

Independent Consultant
Joined on October 15, 2004
Total Post Views: 25,348


Dr. John C. Klensin is now an independent consultant following a distinguished career as Internet Architecture Vice President at AT&T, Distinguished Engineering Fellow at MCI WorldCom, and Principal Research Scientist at MIT.

He served on the Internet Architecture Board from 1996-2002 and was its Chair from 2000 until the end of his term. Earlier, he served as IETF Area Director for Applications and was Chair, Co-chair, and/or Editor for IETF Working Groups focused on messaging and IETF process issues.

He was involved in the early procedural and definitional work for DNS administration and top-level domain definitions and was part of the committee that worked out the transition of DNS-related responsibilities between USC-ISI and what became ICANN. He participated actively in a number of efforts to expand internationalization of the Internet, ranging from early character set requirements work, through the efforts to permit and identify non-ASCII character sets in email, and including IDN efforts in the IETF, ICANN, and elsewhere.

He was also involved in the design and development of the Internet’s email system from its beginnings, and has been heavily involved in internationalization issues, for the Internet and in other areas, for many years.


2009 - Jul 08 on What are TLDs Good For?
2009 - Jun 13 on Fight Phishing With Branding
2009 - Jun 13 on Fight Phishing With Branding
2009 - Jun 13 on Fight Phishing With Branding
2009 - Jun 12 on Fight Phishing With Branding
2009 - Jun 10 on Fight Phishing With Branding

Topic Interests

DNSNew TLDsDomain NamesMultilinguismRegistry ServicesICANNInternet GovernanceCybersecuritySpamCybercrimeThreat Intelligence

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Popular Posts

Internationalizing Top-Level Domain Names: Another Look