DNSSEC Trust Anchor History Service

Document Type Expired Internet-Draft (individual)
Authors Wouter Wijngaards  , Olaf Kolkman 
Last updated 2021-06-19 (latest revision 2010-06-29)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


When DNS validators have trusted keys, but have been offline for a longer period, key rollover will fail and they are stuck with stale trust anchors. History service allows validators to query for older DNSKEY RRsets and pick up the rollover trail where they left off.


Wouter Wijngaards (wouter@nlnetlabs.nl)
Olaf Kolkman (olaf@nlnetlabs.nl)

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