DNS client lookups, was [Fwd: Re: DNS configuration Tool]

Ade Bradshaw binaryboy at blueyonder.co.uk
Sun Jan 4 14:14:13 UTC 2004


Tom Diehl wrote:
> On Sun, 4 Jan 2004, Ade Bradshaw wrote:
> 
> 
>>Im not sure if Im being much clearer now ;-)   In a nutshell, if a DNS 
>>*client* has two entries in /etc/resolv.conf will it always ask the 
>>first server listed or will it choose one at random ??
> 
> 
>>From man resolv.conf:
> 
> nameserver
>               Internet address (in dot notation) of a name server that the
>               resolver should query.  Up to MAXNS (see <resolv.h>) name
>               servers may be listed, one per keyword.  If there are multiple
>               servers, the resolver library queries them in the order listed.
>               If no nameserver entries are present, the default is to use the
>               name server on the local machine.  (The algorithm used is to try
>               a name server, and if the query times out, try the next, until
>               out of name servers, then repeat trying all the name servers
>               until a maximum number of retries are made).
> 

Aha, so I was right. Many thanks for finally clearing away any doubts. I 
think I probably misunderstood the original post (maybe).

Thanks Tom





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