Hi,
I am puzzled by the behaviour of my opensips (3.1.3) server. It
'decided' to send requests from one of accounts via TLS even though not
configured to do that.
excerpt from my logs (anonymized):
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]: #528515: Forwarding
INVITE request to: <sip:[email protected];transport=udp>
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]: #528515: new branch at
sip:[email protected];transport=udp
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]:
ERROR:core:tcp_connect_blocking_timeout: poll error: flags 28 - 4 8 16 32
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]:
ERROR:core:tcp_connect_blocking_timeout: failed to retrieve SO_ERROR
[server=192.168.111.222:5061] (111) Connection refused
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]:
ERROR:proto_tls:tls_sync_connect: tcp_blocking_connect failed
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]:
ERROR:proto_tls:proto_tls_send: connect failed
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]: ERROR:tm:msg_send:
send() to 192.168.111.222:5061 for proto tls/3 failed
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]:
ERROR:tm:t_forward_nonack: sending request failed
Jul 12 14:48:35 sip1 /usr/sbin/opensips[28301]: ERROR:tm:w_t_relay:
t_forward_nonack failed
The routing is done by the drouting module. I have even forced
'transport=udp' and using the udp: socket in the dr_gateways table. And
opensips still attempts to send this via TLS, which fails.
The worst thing it that is only happening for a customer account on the
production server. I cannot enable debug logs there or do any other
invasive debugging. The same drouting gataway works properly for traffic
of other customers. The other gateways, that are supposed to use TLS,
also work as expected.
I have checked traffic dumps – there is no attempt to use anything other
than TLS there. And the original request looks 100% normal, with no
mention of 'tls' or 'sips:' there.
Any idea what might be going on there? Or how can I debug it?
Looks like some random details is triggering the problem.
Greets,
Jacek
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