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 :: Mailing Lists

[ILUG] DNS resolution problem

[ILUG] DNS resolution problem

Ronan Mullally ronan at iol.ie
Mon Feb 28 12:10:56 GMT 2011


On Mon, 28 Feb 2011, stephen mulcahy wrote:

> domain blah.example.com
> search foo.example.com aaa.example.com
> nameserver 10.0.0.1
> nameserver 10.0.0.2
>
> What I'm seeing in the nameserver query logs is lots of queries for things
> like
>
> www.google.com.foo.example.com
> www.google.come.aaa.example.com
> www.google.com.blah.example.com

It looks like the resolver is cycling through to the various (sub)domains
listed in the search and domain lines in your /etc/resolv.conf.

man resolv.conf and read about ndots (the default is 1, so the example
above shouldn't happen unless the initial query failed).


-Ronan


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