help wiht classless network and reverse lookups
Peter Anton
peter at mprint.com
Tue Mar 20 19:08:57 UTC 2001
n Wed, 21 Mar 2001, Bill Dossett wrote:
>
> Hi,
>
> I've been through the archive and I'm a little confused
> about classless subnetting and reverse name lookups.
> I believe I have my configuration setup correctly, but
> from what I have read in the archives, it seems to say
> that this should work for my internal network even if
> my ISP has not set their reverse zones up as per RFC2317...
> So, I am unclear if I have a problem in my configuration or
> if my ISP is not setup correctly and my server is referencing
> their servers and it isn't working because of that. The
> relevent bits are...
>
> named.conf contains
>
> zone "0-26.235.243.193.in-addr.arpa"{
> type master;
> file "193.243.235";
> };
>
> 193.243.235 contains
>
> $ORIGIN 0-26.235.243.193.in-addr.arpa.
> @ IN SOA ns0.terrapin.co.uk. postmaster.bill.co.uk. (....)
> ...
> @ NS ns0.terrapin.co.uk.
> @ NS ns0.emtex.com.
> 3 IN PTR lucida.terrapin.co.uk.
>
> which I think is correct yet I can't get any reverse info,
> in fact when I start nslookup pointed at 193.243.235.3,
> it fails saying it can't find the name of the server. When
> I explicity point it at 193.243.235.3 again and do a host.domain
> lookup, it responds fine.... So, is the problem with my ISP
> or am I guilty of a typo somewhere (that I haven't been
> able to see for 10 hours????)
> The only other info I have at the moment is my My log files are telling
> me that
>
> named[4278]: Lame server on '3.235.243.193.in-addr.arpa' (in
> '235.243.193.in-addr.arpa'?): [193.243.233.9].53 'ns1.cerbernet.co.uk'
>
> ns1.cerbernet.co.uk is my ISPs name server....
>
> and then I get a
>
> named[4278]: ns_forw: query(10.235.243.193.in-addr.arpa) All possible A
> RR's lame
>
> and I haven't been able to figure out exactly what these
> are trying to tell me.
>
> I'd sure appreciate if someone could clear this up for me as
> I can't seem to make any further headway.
>
>
> Thanks,
>
> Bill
>
>
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