DNS Extended Service Discovery (ESRV) Record.

Document Type Expired Internet-Draft (individual)
Authors Phillip Hallam-Baker  , Brian Smith 
Last updated 2011-03-09
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Expired & archived
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


General Service Description (GSRV) and Extended Service Description records are DNS Resource Records that provide information to applications attempting to establish a network connection. When authenticated using an appropriate means GSRV and ESRV records may be used to prevent a downgrade attack in cases where use of security enhancements with an application protocol are optional.


Phillip Hallam-Baker (philliph@comodo.com)
Brian Smith (brian@dns.com)

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