[dns-operations] Facebook name servers

[George Barwood]

It's reasonably clear to me that this is a long running problem with Facebook.

http://www.webuser.co.uk/news/top-stories/370487/o2-customers-locked-out-of-facebook

Users of facebook who have problems seem to get directed to OpenDns.

http://en.kioskea.net/forum/affich-12130-problems-connecting-to-facebook#p13398

Dunno what the name server software is, but this is an unpleasant bug.