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RIPE reverse DNS broken for much of day

Dutch titsup kit off, wobbly, in and out

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Reverse DNS services for subscribers to RIPE - the Regional Internet Registry for Europe, the Middle East and parts of Central Asia - were disrupted yesterday for over three hours.

Some users were still experiencing outages this morning.

Used to check domain names in email receiver fields, reverse DNS checks are a helpful way of whittling out spam.

Unfortunately the servers that match up and whitelist email domains at the Amsterdam-based Réseaux IP Européens Network Coordination Centre (RIPE NCC) conked out yesterday for several hours causing problems for the web services that use them. RIPE said in an update:

Between 15:00 UTC and 18:00 UTC on 13 June 2012, there was breakage in reverse DNS services. Queries may have resulted in empty results. The problems have been fixed and should propagate out in the coming hours.

RIPE updated again to say that the roll-back of service had caused further errors resulting in more disruption:

We have been working hard over the past 18 hours to resolve this problem and we apologise for the considerable inconvenience.

RIPE were unable to provide any technical detail on what exactly had ballsed up, though they promise to publish a full report when they have had sufficient time for analysis. ®

Providing a secure and efficient Helpdesk

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