DNS resolution issue.

Ken D'Ambrosio ken at jots.org
Mon Oct 18 10:54:58 EDT 2010


Boy, I love it when typing an e-mail helps you figure something out.  I
actually even figured it out before clicking "send", for a change.  So,
first, I'll give the solution; the original problem is below.

Changing resolv.conf's "hosts" line from

hosts:          files mdns4_minimal [NOTFOUND=return] dns mdns4
to
hosts:          files dns mdns4

totally did the trick.  Anyone wanna take a stab at telling me what went
wrong -- and why "NOTFOUND=return" is a default setting?

Thanks,

-Ken

------------------------- original message -------------------------

Hey, all.  I've got an issue that's bugged me through several releases of
Ubuntu, but I've just never been compelled enough to figure it out.  Here
goes:

1) Our DNS servers are 'doze boxen, running W2K3.
2) Our domain is foo.local -- which I don't love, but it (usually) works.
3) If I do a "host gildor.foo.local", it comes right back with:
gildor.foo.local has address 172.17.0.11
4) If I try to surf to the FQN, no dice.  Just the hostname, though, and
all's peachy.
5) Same for pinging: "gildor" works fine, "gildor.foo.local", not so much.
 Here's the strace snippet: [and this is where nsswitch.conf was listed,
which made me start tweaking]



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