Re: wget not resolving domain names

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On Fri, Nov 04, 2005 at 12:58:10PM +0000, Paul Howarth wrote:
> Another traditional use was for providing named hosts for each service 
> and then providing all services on one host, e.g.
> 
> myserver	A	10.0.0.1
> ftp		CNAME	myserver
> www		CNAME	myserver
> rsync		CNAME	myserver
> 
> If the load became too high, each service could then be split off onto 
> separate machines:

But this can also be accomplished by using an A record that points to
10.0.0.1 instead of the CNAME...

> myserver	A	10.0.0.1
> myserver2	A	10.0.0.2
> myserver3	A	10.0.0.3
> ftp		CNAME	myserver
> www		CNAME	myserver2
> rsync		CNAME	myserver3
> 
> This would all be transparent to people using the "ftp", "www", and 
> "rsync" aliases.

Likewise if one is using A records vs. CNAMES here.  And it's not
totally transparent...  Any changes that are made will screw up
clients that have the old record cached, until the record expires from
the name server's cache -- whether you're using CNAMEs or A records.

-- 
Derek D. Martin
http://www.pizzashack.org/
GPG Key ID: 0x81CFE75D

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