Hi Bogdan,
If the conn with B is still alive (the one created by SUBSCRIBE
requests), it should be reused when OpenSIPS has to send the NOTIFY.
Have you enabled the tcp aliases ?
If still a problem, can you make a log (with debug 6) when the NOTIFY is
to be send + a listing from list_tcp_conns ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 28.08.2015 20:53, Bogdan Chifor wrote:
Hello,
I have a question regarding the following scenario:
1. I have two devices connected to the server via two-way TLS(TCP).
1.1 Device A is behind a NAT
1.2 Device B is directly connected to the server
2. Device B subscribes to the presence of device A.
3. Device A gets offline and the server generates a NOTIFY message to
be sent to device B.
4. The server does not find an existing tcp connection (from the
logs), even though the socket is visible if the "opensipsctl fifo
list_tcp_conns" or "netstat" commands are used.
5. Because the server does not find an existing connection it
initiates one (TLS). After that the proto tls module logs the
following error: "NOTICE:proto_tls:verify_callback: verify
error:num=26:unsupported certificate purpose".
6. This error is normal because device B does not have a certificate
with server authentication extended key usage, it has only the client
authentication extended key usage (as normal).
What is the reason behind the start of the new connection and how
should I handle this issue?
This is my proto_tls config:
*modparam("proto_tls", "verify_cert", "1")*
*modparam("proto_tls", "require_cert", "1")*
*modparam("proto_tls", "tls_method", "TLSv1")*
*modparam("proto_tls", "certificate", "...")*
*modparam("proto_tls", "private_key", "...")*
*modparam("proto_tls", "ca_list", "...")*
*modparam("proto_tls", "ca_dir", "...")*
Any help is appreciated.
Best regards,
Bogdan.
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