How to avoid to listen on specific interfaces

Sten Carlsen stenc at s-carlsen.dk
Thu Sep 6 13:06:47 UTC 2018



On 06/09/2018 14.33, He Zhe wrote:
>
> On 2018年09月06日 20:26, Sten Carlsen wrote:
>>
>> On 06/09/2018 12.36, He Zhe wrote:
>>> Hi,
>>>
>>> How can I config to let named NOT listen on specific interfaces? Any negation config in options like below? Currently it listens on all interfaces and compete with other DNS daemons in the same system.
>>>
>>> options {
>>> listen-on { ! 10.0.1.1; };
>>> };
>> You may try to let it specifically listen to all interfaces except the one you want excluded.
> Thanks for your hint.
>
> But the "all" here is hard for me to determine beforehand. Many potential different things would use named but some specific one just want to use their own DNS services. So I'm looking for the NOT operation.
I would assume that there is a limited and fairly fixed number of actual
NICs in the host.

example:
eth0 -> internal network 192.168.43.17
eth1 -> external network 123.45.6.7
eth0:7 -> VLAN for location 1  192.168.23.45

Listen_on { 192.168.43.17; 192.168.23.45; }  eth1 is missing and should
not be listened to.

>
> Zhe
>
>>> Thanks,
>>> Zhe
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>>
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