Hi guys, I am a beginner in kamailio technology. I want to use kamailio in secure mode with TLS. But when I try to connect via TLS, I get this error in terminal: Mar 08 12:29:36 KAMAILIO5 /usr/sbin/kamailio[1627]: ERROR: <core> [core/tcp_read.c:1512]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0x7f6d71a82800 r: 0x7f6d71a828e8 (-1) Mar 08 12:29:44 KAMAILIO5 /usr/sbin/kamailio[1629]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS accept:error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate unknown tls.cfg : [server:default] method = TLSv1.2+ verify_certificate = no require_certificate = no private_key = /etc/certs/kamailio/kamailio-key.pem certificate = /etc/certs/kamailio/kamailio-cert.pem ca_list = /etc/certs/demoCA/kamailio-cert.pem I followed this tutorial to generate the ssl keys:  http://www.kamailio.net/dokuwiki/doku.php/tls:create-certificates <http://www.kamailio.net/dokuwiki/doku.php/tls:create-certificates> Can someone please help me? _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users