Re: curious name resolution problems

In article <bb05br$1f56$1@xxxxxxxxxxx>,
Stevie Davies <stevie_davies@xxxxxxxxxxx> wrote:
>I have registered a domain, and have set up a 9.2.2 bind server. A
>resolver can do a forward or reverse name lookup, if it is configured to
>query my name server directly, however if it uses any other name server, then 
>the
>lookup fails.
>
>I have been banging my head against this for a while now, and have read
>Cricket's book cover to cover - to no avail!
>
>I believe the delegation is correct, as I see the remote server querying
>my name server, I see no errors on starting named, i see no errors when
>querying, nothing happens. My named.conf, zone files and log entries are
>below, when I ran named-checkconf against them, they reported OK. Much 
>appreciated if someone could shed some light on the matter, as I am stumped.

Since your log shows the queries arriving, my guess is that something (a
firewall or packet filter) is blocking the replies from getting back to
them.

....
>zone "doublezero.net"  {
>       type master;
>       file "zones/db.doublezero.net";
>};
>
>zone "76.2.81.in-addr.arpa" IN {
>       type master;
>       file "zones/db.76.2.81.in-addr";
>};

You have these files backwards.  The contents of db.doublezero.net should
be in db.76.2.81.in-addr.arpa, and vice versa.

However, since there are no warnings about this in your log, and local digs
work OK, I suspect the problem isn't in the actual files, but just a
cut-and-paste error in the post.

>zones/db.doublezero.net->
>
>$ttl 3h
>76.2.81.in-addr.arpa. IN SOA dns1.doublezero.net. dns.doublezero.net. ( 
>                 200305221 ; serial
>                 21600      ; refresh (6 hours)
>                 1800       ; retry (30 mins)
>                 2592000    ; expire (30 days)
>                 86400 )    ; minimum (1 day)
>
>;Nameserver
>
>76.2.81.in-addr.arpa.  IN  NS  dns1.doublezero.net.
>
>;Addresses
>
>162  IN  PTR dns1.doublezero.net.
>163  IN  PTR dns2.doublezero.net.
>164  IN  PTR beaver.doublezero.net.
>
>
>zones/zones/db.76.2.81.in-addr ->
>
>$TTL 86400
>@ IN SOA dns1.doublezero.net. dns.doublezero.net. (
>                200305241 ; serial
>                21600      ; refresh (6 hours)
>                1800       ; retry (30 mins)
>                1209600    ; expire (30 days)
>                86400 )    ; minimum (1 day)
>
>                    IN  NS  dns1.doublezero.net.
>
>localhost           IN  A  127.0.0.1
>gateway             IN  A  81.2.76.161
>dns1                IN  A  81.2.76.162
>dns2                IN  A  81.2.76.163
>beaver              IN  A  81.2.76.164
>
>
>squirrel            IN  CNAME dns1

-- 
Barry Margolin, barry.margolin@xxxxxxxxxx
Level(3), Woburn, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
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