The state of resolv.conf
Nils Philippsen
nils at redhat.com
Tue Sep 16 15:44:23 UTC 2008
On Tue, 2008-09-16 at 16:41 +0100, Paul Howarth wrote:
> Nils Philippsen wrote:
> > On Tue, 2008-09-16 at 14:51 +0200, Adam Tkac wrote:
> >> On Tue, Sep 16, 2008 at 01:34:06PM +0200, Ahmed Kamal wrote:
> >>> Is there any current daemon that does this effect of directing name
> >>> resolution to specific servers according to IP ranges and/or domain names,
> >>> with the option of adding/removing servers on the fly ? Does dnsmasq do that
> >>> ?
> >>>
> >> What you mean with "according to IP ranges/domain names"?
> > [...]
> >> - if you want redirect target domains to different servers you can use
> >> BIND and forward zones:
> >
> > I would want to be able to do that based on domain names (which is
> > easily done with BIND) and on classless IP ranges. I don't think the
> > latter can be done as the IP ranges are octet-granular, e.g.
> > 10.in-addr.arpa for 10.0.0.0/8 -- I can't imagine how I would tell BIND
> > to use a certain server for e.g. 10.1.0.0/12 (where 4 MSB of the second
> > octet are part of the network address and the remaining 4 LSB are part
> > of the host address).
>
> You could do it as 16 separate /16 forwards but obviously that would be
> very ugly and doing it for a /17 would be much worse...
Make that "I don't want to imagine..." then ;-).
Nils
--
Nils Philippsen "Those who would give up Essential Liberty to purchase
Red Hat a little Temporary Safety, deserve neither Liberty
nils at redhat.com nor Safety." -- Benjamin Franklin, 1759
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