You are here: Home > Get Support > Service and Security Announcements > DNS Resolution Issues

DNS Resolution Issues

From 12:00 - 14:30 (UTC+2), the following list of zones experienced DNS resolution problems due to expired DNSSEC signatures. Anyone using a validating resolver during that time would not have been able to resolve names in these domains. 

Further details: Our DNSSEC signer had stopped refreshing signatures in zones that had not been recently modified. This caused the signatures to expire. We resolved it by forcing a serial number update of all the zones.

We did not have monitoring for this kind of failure, and we're about to add this, so that we're aware of such an issue before it becomes a problem. We also have a bug report open with the DNSSEC signer vendor to figure out why it suddenly stopped its daily signature refresh.

1.0.193.in-addr.arpa
10.0.193.in-addr.arpa
11.0.193.in-addr.arpa
12.0.193.in-addr.arpa
13.0.193.in-addr.arpa
14.0.193.in-addr.arpa
15.0.193.in-addr.arpa
159.175.93.in-addr.arpa
16.0.193.in-addr.arpa
17.0.193.in-addr.arpa
18.0.193.in-addr.arpa
21.0.193.in-addr.arpa
22.0.193.in-addr.arpa
23.0.193.in-addr.arpa
24.0.193.in-addr.arpa
25.0.193.in-addr.arpa
26.0.193.in-addr.arpa
27.0.193.in-addr.arpa
28.0.193.in-addr.arpa
29.0.193.in-addr.arpa
30.0.193.in-addr.arpa
31.0.193.in-addr.arpa
4.0.193.in-addr.arpa
4.6.0.0.c.7.6.0.1.0.0.2.ip6.arpa
6.0.193.in-addr.arpa
7.0.193.in-addr.arpa
8.0.193.in-addr.arpa
aso.icann.org
c.7.d.2.c.7.6.0.1.0.0.2.ip6.arpa
d.f.7.0.1.0.0.2.ip6.arpa
enog.org
enumdata.org
ipv6actnow.com
ipv6actnow.net
ipv6actnow.org
ipv6eyechart.net
nro.org
ripencceb.net
rob-blokzijl-foundation.org
e164.arpa