[ncc-announce] Reverse DNS Outage Announcement

[Apologies for duplicates]

Dear Colleagues,

At 13:50 on Thursday, 21 January, an error was introduced into the RIPE
NCC's reverse DNS provisioning system. This caused reverse DNS
delegations to stop working for allocations in the following range:
77.0.0.0 to 77.220.7.255

This error was triggered by an internal cleanup of our Early
Registration Transfer (ERX) DNS delegations, which was being conducted
as part of the RIPE NCC's Registration Data Quality (RDQ) project.

The reverse DNS provisioning system was corrected again on 22 January at
09:50 (UTC). However, due to negative caching in DNS resolvers, the
problem may have remained visible for a further two hours.

The RIPE NCC is currently revising the reverse DNS provisioning system
to prevent errors such as this occurring in future. If you have any
questions or comments, please send an email to <ncc at ripe.net>.


Regards,

Sjoerd Oostdijck
DNS Services Group, RIPE NCC