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DNS Issues

This morning, the RIPE NCC briefly experienced a problem on the DNS servers. Operation of K-root and other public DNS services was not impacted at any time during this outage.

At 11:45 (UTC) this morning, an error in the deployment script used to update the zone caused a partial zone file to be activated. This caused the DNS servers to return NX-domain responses for some valid hosts and/or subdomains in the zone, which effectively rendered some of the RIPE NCC services unavailable during
this period.

DNS resolution for was fully restored at 12:15 (UTC). Caching of the erroneous responses may have caused reachability problems until 13:15 (UTC).

The error in the script has been identified and is only triggered in a specific corner case. This error will be corrected today.