Nobody from Microsoft ever responded (FWIW). We were seeing intermittent REFUSED responses from their servers. I suspected it might be related to the mis-matched TTLs. Since then, the TTLs have been synced, and we haven't seen the REFUSED problem any more.
On Jun 15, 2012, at 2:54 AM, Chris Thompson wrote: > On Jun 15 2012, Mark K. Pettit wrote: > >> Can someone from Microsoft please contact me off-list? We have been noticing >> a few odd behaviors regarding some Microsoft domains. >> >> Specifically, the TTL of the various address records for the NS-set for >> microsoft.com are/were not consistent: >> >> ;; ADDITIONAL SECTION: >> ns1.msft.net. 2480 IN A 65.55.37.62 >> ns1.msft.net. 42936 IN AAAA 2a01:111:2005::1:1 >> ns2.msft.net. 2480 IN A 64.4.59.173 >> ns2.msft.net. 42936 IN AAAA 2a01:111:2006:6::1:1 >> ns3.msft.net. 2480 IN A 213.199.159.59 >> ns3.msft.net. 42936 IN AAAA 2a01:111:2020::1:1 >> ns4.msft.net. 2480 IN A 207.46.75.254 >> ns4.msft.net. 42936 IN AAAA 2404:f800:2003::1:1 >> ns5.msft.net. 2480 IN A 65.55.226.140 >> ns5.msft.net. 42936 IN AAAA 2a01:111:200f:1::1:1 > > What is wrong (technically speaking) with that? The A and AAAA > records don't have to have the same TTL. > > They do seem to have made them uniformly 3600 st the authoritative > servers now. > > I could find other things to complain about them, though, such as > how they don't support EDNS, and the IPv6 addresses seem not to > be working from here... > > -- > Chris Thompson University of Cambridge Computing Service, > Email: [email protected] New Museums Site, Cambridge CB2 3QH, > Phone: +44 1223 334715 United Kingdom. > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
