[CentOS] Caching nameserver -- Name Services Cache Daemon (nscd)

Johnny Hughes mailing-lists at hughesjr.com
Wed Aug 10 06:40:05 UTC 2005


On Wed, 2005-08-10 at 00:27 -0500, Les Mikesell wrote:
> On Tue, 2005-08-09 at 17:22, William Warren wrote:
> 
> > So i did this:
> >  >nslookup hotmail.com
> > (on my winders box)
> > and i got this:
> > *** Can't find server name for address 192.168.0.200: Non-existent domain
> 
> I think this is only fatal with nslookup, but DNS servers should be
> able to reverse-resolve their own IP address to a name and apparently
> your forwarding server doesn't know your private addresses either.
> What does 'dig @localhost' say on the box itself?
> 
> The right fix is to configure either this or the upstream server
> as primary for the 192.168.0 zone.  Otherwise you'll toss thousands
> of these queries up to the root servers.
> 
> zone "0.168.192.in-addr.arpa" IN {
>        type master;
>        file "192.168.0.arpa";
>        allow-update { none; };
> };
> If you don't know the format for the zone file mentioned, you
> might want to use webmin to build it.
> 
> 
> > The box's name is Enoch.emmanuelcomputerconsulting.com
> > ip is 192.168.0.200 set statically.
> 
> Does your upstream server resolve that domain or your private
> addresses?
> 
BTW, there is a package called caching-nameserver ... 

yum install caching-namesever

will give you a good working caching nameserver
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