[ubuntu-us-mi] hostname lookup bug?

[Wolfger]

My guess is: "Caching name servers store DNS query results for a
period of time determined in the configuration (time-to-live) of the
domain name record in question." (copied and pasted from
http://en.wikipedia.org/wiki/DNS_cache#Recursive_and_caching_name_server
because I couldn't remember the details off the top of my head)

On Tue, Nov 9, 2010 at 10:52 AM, Robert Citek <robert.citek at gmail.com> wrote:
> I'm trying to figure out where the issue is with name resolution on
> Ubuntu Lucid 10.04.  Here are the symptoms in psuedo-commands:
>
> on Red Hat machine:
> $ dig @foo bar
> -> 10.1.1.1
>
> on Ubuntu:
> $ dig @foo bar
> -> 10.1.1.1
>
> Remove bar from DNS on foo.
>
> on Red Hat machine:
> $ dig @foo bar
> -> no IP
>
> on Ubuntu:
> $ dig @foo bar
> -> 10.1.1.1
>
> reboot Ubuntu machine.
> on Ubuntu:
> $ dig @foo bar
> -> no IP
>
> Why is Ubuntu still returning an IP for machine foo?  What is being
> cleared/stopped by the reboot?
>
> I'll try to setup a self-contained real example a bit later.
>
> Regards,
> - Robert
>
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-- 
Wolfger
http://wolfger.wordpress.com/

The world is a mess, and I just... need to rule it.