[Kamailio-Users] [OpenSER-Users] Firewall

Henning Westerholt henning.westerholt at 1und1.de
Mon Jul 28 14:58:22 CEST 2008


On Thursday 24 July 2008, CSB wrote:
> I have an error which is driving me crazy:
>
> Jul 24 16:58:34 beta /sbin/openser[5446]: ERROR:core:udp_send:
> sendto(sock,0x81aaed8,825,0,0xb61216f0,16): Operation not permitted(1)
> 
> If I turn the firewall off, start a call and then turn the firewall on the
> call continues successfully. However the next call is not successful. We
> use Mediaproxy and I suspect that is trying to do some communication that
> is being blocked by the firewall but that is only a suspicion. The dialogue
> for this call is shown at the bottom.

Hi CSB,

how about debugging your firewall rules step by step and test each rule? This 
way you should be able to isolate the problematic one.

Cheers,

Henning




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