Colleagues, ICANN has operated the IANA DNSSEC testbed, serving non-production, signed versions of the root, ARPA, IN-ADDR.ARPA, IP6.ARPA, IRIS.ARPA, URN.ARPA, and INT zones for several years. Following the recent completion of DNSSEC deployment in the root zone, this testbed is scheduled to be decommissioned. For more details on the IANA DNSSEC testbed, see https://ns.iana.org/dnssec/. For more details on DNSSEC deployment in the Root Zone, see http://www.root-dnssec.org. At the time that the service is decommissioned, the nameserver bound to NS.IANA.ORG (208.77.188.32, 2620:0:2d0:1::32) will be shut down and DNS queries to NS.IANA.ORG will fail with ICMP type 3 code 3 (Destination Unreachable, Port Unreachable). We suggest that anybody using the DNSSEC testbed for anything resembling production services make plans to stop doing so at their earliest convenience. ICANN would like to thank Packet Clearing House (PCH) and Dun.com DynTLD for their support and generous donation of global DNS resources to the IANA DNSSEC testbed. DRAFT TIMELINE Wed 2010-08-03 First public notice (this message) Wed 2010-08-25 Second public notice (reminder) Wed 2010-09-01 IANA DNSSEC Testbed is shut down Wed 2010-09-01 Third public notice (confirming work complete) Regards, Joe Abley Director DNS Operations, ICANN