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Re: enable DNS





Kenneth Porter wrote:

--On Friday, June 11, 2004 2:55 PM -0400 David Collantes <david bus ucf edu> wrote:

You do not need to run DNS to do what you are trying to do, but you need
to list a valid (or more than one) DNS on your /etc/resolv.conf, which
should contain:

search dnsdomainname.com
nameserver XXX.XXX.XXX.XXX
nameserver XXX.XXX.XXX.XXX

Of course, XXX.XXX.XXX.XXX are the IP of the DNS you are going to use.
Done!


But it's nice to run your own caching server to reduce traffic and you eliminate dependence on your ISP's servers. To do this, install the caching-nameserver RPM package. It's a config file for BIND (named) that runs it only as a caching server. Then enable and start the named service.

Finally, in /etc/resolv.conf, set the nameserver to 127.0.0.1 so that it will consult your new caching nameserver.

No you don't, Your caching nameserver still needs to query some other server for lookups and setting that as the only nameserver in resolv.conf will break dns for you.

The advantage to this approach is if you have several machines on your lan and you use a single caching nameserver, then your other hosts can query your caching nameserver host and aggregate calls to the remote servers while taking advantage of the caching service.

For a single host it has no benefit, and in fact will slow down lookups.







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