unable to resolve one specific domain (hotmail.co.uk)
Graeme Fowler
graeme at graemef.net
Wed Apr 25 16:15:47 UTC 2007
x_bind-users_x at nospam.pz.podzone.net wrote:
> I'm open to comments as to the sanity of doing this, or if there's a
> better way, but hosts can now resolve hotmail.co.uk and mail is free
> flowing to that domain again.
A post on a closed UK-academic-centric mailing list just now stated that
hotmail seem to be blocking UDP queries with source port == 53.
My testing (using dig's "-b ipaddress#port" option) shows that they're
refusing connections with privileged source ports. Anything >1023 gets a
response.
If you have:
query-source address * port 53; # or < 1024
Then comment it out and restart.
Graeme
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