SMPP Server using SSL/TLS fails -- SSL_accept: Error 0

SMPP Server using SSL/TLS fails -- SSL_accept: Error 0 SearchSearch
Author Message
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 4880
Registered: 08-2008
Posted on Monday, May 05, 2014 - 03:02 pm:   

This issue was recently reported in a technical support incident.

A customer had enabled SSL/TLS for the SMPP server, but SMPP clients were unable to connect with SSL/TLS. The SMSDEBUG.LOG reported: ThreadProcessSSLSMPPConnection: SSL_accept: Error 0

The problem is resolved by restarting the NowSMS services.

SSL/TLS protocols can be used in client mode without a certificate. However, using SSL/TLS protocols in server mode requires a certificate. After generating a certificate, the NowSMS services will not actually use the certificate until the services are restarted. This is why the error occurs.

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Des
NowSMS Support