strange behavior of bind

john doe john_doe_rules at
Thu Oct 7 12:26:31 UTC 2004

Hi there,

i have a problem with my bind (9.2.3) I want to run bind in two
instances of one maschine(ext-DNS and int-DNS). I`ve already
configured bind. And it works fine for each config-file.
I bound the one DNS-instance on an Address the other
on If i start one or the other, all works fine. I can
querry local Addresses/Domains and non-local Addresses/Domains. But
when i start them both, they`re acting strange. I can querry local
Addresses/Domains on both of them, but only one of them answers
querries for non-local Addresses/Domains such as Both have
their forwarders. It is allways the second started instance of bind
that works fine. If i start and then
then works fine, the other one gets timeouts. If i
start at first and in second then works fine. If i stop one of them the other one works
If i make a netstat -ln ig goth the following lines:

tcp        0      0*              
tcp        0      0*              
udp        0      0*
udp        0      0*

which is Ok i guess, but i also get this line, which maybe causes the

udp        0      0    *

Why is the Port 53 bound to udp In the named-int.conf i
listen-on port 53 {; }; 
similar in the named-ext.conf:
listen-on port 53 {; }; 

I hope somebody can help me. And please forgive my poor english. 


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