[Dnsmasq-discuss] 2.53rc2

[Matthias Andree]

clemens fischer wrote on 2010-05-25:

> I let dnsmasq forward dns queries to bind-9, which worked fine
> yesterday.  Today I get log lines like:
>
>     dnsmasq: failed to create listening socket: Address already in use
>
> and
>
>     dnsmasq: failed to bind server socket for : Address family not
>     supported by protocol

No idea about the former.

The latter looks like a mismatch between the PF_ used for the socket()  
call and the AF_ used for bind().

> I'd very much like dnsmasq to say what port/adress family makes trouble.

Assuming Linux or one of the supported BSDs, try:

strace -e trace=network dnsmasq -d [other dnsmasq options]

Other systems might provide truss or ktrace/kdump.

-- 
Matthias Andree