ARIN DNSSEC Changes on 27 April

Posted: Tue, 26 April 2011

ARIN is proud to announce that on 27 April, we will place Delegation Signer (DS) records into and At that point, DNSSEC validation will occur from the root down if you properly set up your DNSSEC-aware recursive resolver. ARIN's DNSSEC initiative will be considered complete once these DS records are in place.

For most DNSSEC-aware recursive resolver operators, nothing needs to be done for this change to be in effect as long as you have configured your DNSSEC-aware server to use ICANN’s Key Signing Key (KSK) for the root zone. For those who have used ARIN’s trust anchors (in place since 2 July 2009) to take advantage of DNSSEC before the root or was signed, you MUST remove them within the next two months of this date. Otherwise, DNSSEC validation may fail due to a KSK change. Additionally, ARIN will also coordinate with Internet Systems Consortium, Inc. (ISC) to remove ARIN's delegations from their DNSSEC Lookaside Validation (DLV) registry after setting up these records in and

The DS records will remain the same as the current trust anchor for the next two months. After that time, ARIN will begin rolling a KSK for its authoritative zones, which will cause any DNSSEC-enabled resolvers that use ARIN’s statically configured trust anchors to fail

As always, ARIN welcomes community feedback regarding DNSSEC. Subscribe and participate on the mailing list if you have questions or comments.


Mark Kosters
Chief Technology Officer 
American Registry for Internet Numbers (ARIN)