Newbie needs help - non-authoritative lookup, reverse zone

[Arthur Penn]

Thanks for your reply. I found a very good article that helped me get
things straightened out
(http://www.linuxgazette.com/issue44/pollman/dns.html). This cleared
up some of the significant confusion I had about setting up DNS with
BIND 9.

Regarding keeping the Mandrake DHCP daemon from overwriting
/etc/resolv.conf, the following seems to have done the trick:
> To override that action edit /etc/sysconfig/network-scripts/ifcfg-eth0 
> (1,2 etc)  and add the line
>
> PEERDNS=no

What is the significance of the line "$TTL 1d" that appears at the
start of named.local? In the example article above, the zone files did
not have this, and BIND doesn't seem to mind--it messages about
assuming a value. Should I set this, and what does it mean?

Also, where do I place the "allow update" text to allow DNS to update
the zone files (or did I misunderstand what that does)?

The zone files I ended up with follow:

[named.local]
@       IN      SOA     pest.supergnat.org. root.supergnat.org.  (
                                      1997022700 ; Serial
                                      28800      ; Refresh
                                      14400      ; Retry
                                      3600000    ; Expire
                                      86400 )    ; Minimum
        IN      NS      localhost.

1       IN      PTR     localhost.


[named.supergnat]
@	IN SOA pest.supergnat.org	root.supergnat.org (
	1;
	10800;
	3600;
	604800;
	86400 );

	IN NS	pest.supergnat.org.
pest	        IN A	192.168.71.1

localhost	IN A	127.0.0.1

computer1	IN A	192.168.71.2
computer2	IN A	192.168.71.3
computer3	IN A	192.168.71.4


[named.192-168-71]
@	IN SOA	pest.supergnat.org. root.supergnat.org. (
		1;
		10800;
		3600;
		604800;
		86400 );

	IN NS	pest
1	IN PTR	pest
2	IN PTR	computer1
3	IN PTR	computer2
4	IN PTR	computer3



/dev/rob0 <rob0 at gmx.co.uk> wrote in message news:<c9o5ou$5c6$1 at sf1.isc.org>...
> On Wednesday 02 June 2004 09:51, Arthur Penn wrote:
> > How can I fix this? (Conf files follow below)
> 
> Log output might have helped more. In your logs it probably says which 
> RR's dhcpd is trying to change and what errors result.
> 
> > 2) I set up a reverse lookup zone to try to resolve names of machines
> > on the local net. Since most of the local machines have their IP
> > addresses set by DHCP from the router, how can I get the entries for
> > these machine names to show up automatically in the zone file?
> 
> named.conf might have helped too. This router (running dhcpd) is also 
> the nameserver? Show your zone declarations for supergnat.org and 
> 71.168.192.in-addr.arpa. Did you "allow-update localhost;" in each?
> 
> > 3) I had changed /etc/resolv.conf before to remove the nameservers of
> > my ISP that DHCP placed there and use my local DNS, but sometime
> > today something overwrote /etc/resolv.conf and put the ISP's DNSes
> > back in there. How can I stop this?
> 
> Change your DHCP client such that it does not overwrite resolv.conf. If 
> you're using dhcpcd(8), it's the -R option. If you're using something 
> else you'll have to look it up. If none of that makes any sense to you 
> at all, ask this question on a Mandrake forum (and take all the advice 
> you receive with a grain of salt. :)
> 
> > [/var/named/192-168-71.zone]
> > NS pest.supergnat. ; naneserver address
> 
> Not "pest.supergnat.org."? Where's the "org."? Why no "A" records? Is 
> this supposed to be the forward zone or the reverse?
> 
> > [/var/named/named.local]
> > @ IN SOA pest.supergnat. root.supergnat. (
> 
> Again no "org."
> 
> > IN NS pest.supergnat.
> >
> > 1 IN PTR localhost.
> 
> This looks like a reverse zone. The name makes it sound like a forward 
> zone. Why do you want 192.168.71.1 to resolve to "localhost."? You're 
> giving out incorrect information. Say, if you're on 192.168.71.2, 
> assuming it's a different machine, then 1.71.168.192.in-addr.arpa. is 
> NOT "localhost".
> 
> Have you looked at the BIND 9 ARM? You have it in HTML, probably in
> /usr/share/doc/bind-$VERSION.