Hi,

First of all, carefully read the logs you get as they provide *a lot* of useful hints.

The key log is "SSL3_GET_CLIENT_CERTIFICATE:no certificate returned" - that means the other party did not presented a SSL ceritificate, while your TLS setup for that domain do require one (see the require_certificate option).

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 05/14/2018 11:45 PM, Govindaraj, Rajesh wrote:

Hi folks,

Please provide any pointers if you might have.

Thanks,

*From:* Govindaraj, Rajesh
*Sent:* Friday, May 11, 2018 5:37 PM
*To:* [email protected]
*Subject:* Opensips error

Hi,

In a production environment, the below error is seen. The TLS handshake is fine and messages are being exchanged as seen from pcap and when one of the TCP message is read,

2018-05-11T11:24:05.000-04:00 [local2] [err] ffd-alpha-zone1-ccm1.ipc.com /usr/sbin/opensipsInternal[10325]: ERROR:core:_tls_read: TLS connection to 10.204.34.62:52094 read failed

2018-05-11T11:24:05.000-04:00 [local2] [err] ffd-alpha-zone1-ccm1.ipc.com /usr/sbin/opensipsInternal[10325]: ERROR:core:_tls_read: TLS read error: 1

2018-05-11T11:24:05.000-04:00 [local2] [err] ffd-alpha-zone1-ccm1.ipc.com /usr/sbin/opensipsInternal[10325]: ERROR:core:tls_print_errstack: TLS errstack: error:140890B2:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:no certificate returned

This error is seen. TLS read error: 1 indicates SSL_ERROR_SSL. Checking the pcap for success and failure case, they are no abnormalities. It fails for only one user randomly. Today in our test it failed twice with the same error when reading a TLS packet. TLS session establishment is fine. Any pointers would really help.

Thanks,

*Rajeshkumar Govindaraj*

Software Engineer
777 Commerce Drive,
Fairfield, CT-06825
*T*+1 201 253 7803 |*M* +1 475 439 9918 |*E* [email protected] <mailto:[email protected]>

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