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DNS Transport over TCP - Operational Requirements

The information below is for an old version of the document.
Document Type This is an older version of an Internet-Draft whose latest revision is Replaced
Author John Kristoff
Last updated 2017-03-02 (Latest revision 2016-08-29)
Replaced by draft-ietf-dnsop-dns-tcp-requirements, RFC 9210
Stream (None)
Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document encourages the practice of permitting DNS messages to be carried over TCP on the Internet. It also describes some of the consequences of this behavior and the potential operational issues that can arise when this best common practice is not applied.


John Kristoff

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)