[dns-operations] Facebook name servers

George Barwood george.barwood at blueyonder.co.uk
Tue Aug 25 22:55:57 UTC 2009

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Facebook name servers appear to return invalid answers when sent an EDNS option.

dig login.facebook.com @69.63.179.22 +nsid

fails, returning nodata and the SOA.

But

dig login.facebook.com @69.63.179.22

succeeds, returning an A record, as does

dig login.facebook.com @69.63.179.22 +edns=0

Anyone else noticed this?

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