[dns-operations] Microsoft NS server oddness

Mark K. Pettit pettit at yahoo-inc.com
Wed Jun 13 02:11:00 UTC 2012

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:

ns1.msft.net.   2480    IN  A
ns1.msft.net.   42936   IN  AAAA  2a01:111:2005::1:1
ns2.msft.net.   2480    IN  A
ns2.msft.net.   42936   IN  AAAA  2a01:111:2006:6::1:1
ns3.msft.net.   2480    IN  A
ns3.msft.net.   42936   IN  AAAA  2a01:111:2020::1:1
ns4.msft.net.   2480    IN  A
ns4.msft.net.   42936   IN  AAAA  2404:f800:2003::1:1
ns5.msft.net.   2480    IN  A
ns5.msft.net.   42936   IN  AAAA  2a01:111:200f:1::1:1

Mark K. Pettit
DNS Engineer
Yahoo!, Inc.

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