Bind 8.2.3-T5B opens dial up when starting because of NS-query for ROOT-Servers

[Kevin Darcy]

There is no easy solution to this. named needs root-zone data when it starts
up, and if it is configured to use Internet root servers, it'll try to get
that data over the Internet. The only "solution" I've been able to think of,
on the DNS side, is to run an internal-root configuration when disconnected,
a regular Internet-root configuration when connected, and some way to
automatically restart the nameserver with a different configuration as part
of your connection and disconnection sequences. But I've never actually
implemented this personally.

Alternatively, is there some way to tune your dialup parameters such that
queries to port 53 don't bring up your Internet connection?


- Kevin

admin Windows_Systemverwalter wrote:

> Hello,
>
> I tried to fix the following problem via DNS-HowTo and the archive of
> the corresponding mailinglist to this newsgroup but couldn=B4t find a
> solution:
>
> When bind8 (8.2.3-T%B) starts, it does a NS query for ROOT (I found this
> with a protocol sniffer) and opens my dialup connection!.
> This doesn=B4 t hurd for an always on server, because it happens (at leas=
> t
> I hope that) only during start up.
>
> But for my dialup box I don=B4 t want this initial NS query for the root
> servers! =
>
> I tried several things but they didn=B4t do the job:
>
> - removing the zone-entry for .
> - removing the root.hint file
> - setting option dialup and heartbeat-interval 0;
>
> Now my question: How do I instruct bind8 to stop the initial NS-Query
> for ROOT when starting up?
>
> I would appreciate any answer, thanks in advance
>
> Yours
>
> Aribert Biel
>
> ----------------- named.conf ------------------------------
> options {
>         directory "/var/named";
>         check-names master warn;
>         pid-file "/var/run/named.pid";
>         datasize default;
>         stacksize default;
>         coresize default;
>         files unlimited;
>         recursion yes;
>         multiple-cnames no;  =
>
>         forwarders {
>                      130.83.22.60;
>                      130.83.23.63;
>                    };
>         forward only;
>  =
>
>         listen-on {
>                     192.168.1.254;
>                     192.168.2.254;
>                   };
> };                                                                       =
>                                     =
>
>  =
>
> zone "." IN {
>         type hint;
>         file "root.hint";
> };
>  =
>
> zone "localhost" IN {
>         type master;
>         file "localhost.zone";
>         check-names fail;
>         allow-update { none; };
> };
>  =
>
> zone "0.0.127.in-addr.arpa" IN {
>         type master;
>         file "127.0.0.zone";
>         check-names fail;
>         allow-update { none; };
> };
>  =
>
>  =
>
> zone "ppp.tu-darmstadt.de" {
>         type master;
>         file "/var/named/ppp.tu-darmstadt.de.hosts";
>         };
>  =
>
> zone "168.192.in-addr.arpa" {
>         type master;
>         file "/var/named/.rev";
> };