DNS and forward - connections

[Mark.Andrews at iengines.com]

	Named needs to know the root servers and will ask for them when it
	starts up even in forward only mode.  BIND 8 does not support query
	restart, so without the root nameserver RRset there are times when
	it can't answer when it otherwise has the answer.

	Mark

> Hi to all bind - users,
> 
> I have the problem, that when the DNS starts, it always connects the
> forwarder - DNS and so starts the ISDN - connection -> so our telephone
> company becomes richer and richer.
> 
> The Linux Box itself resolves names only per hosts - file.
> The named.conf - file (RedHat 6.1) follows:
> 
> options
> {....
> forward only;
> forwarders {
> 194.35.35.35;
> };
> }
> 
> zone "." {
> type hint;
> file "root.cache";
> };
> 
> The file root.cache is empty -> only the forwarder should resolve the names.
> The Win - Clients (these are the clients for the bind - Server) are not
> active; also no other network programs like dhcpd, sendmail, httpd, and so
> on.
> 
> tcpdump says: 
> 
> ippp0 > 192.168.100.1.1024 > 194.35.35.35 > NS: 22765+ NS? .(17)
> 
> 192.168.100.1 = ippp0 - Device lokal
> 194.35.35.35 = Forward - Nameserver
> 
> Regards,
> Thomas
> 
--
Mark Andrews, Internet Engines Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at iengines.com