[SR-Users] TLS issue

Dear All, Thank you in advance . Facing issue is setting up tls with kamailio 5.5.4 on ec2 Amazon linux server. Getting this error. Aug 18 20:36:33 abc.domain /usr/local/mykamailio/sbin/kamailio[10772]: ERROR: tls [tls_server.c:1329]: tls_h_read_f(): protocol level error Aug 18 20:36:33 abc.domain /usr/local/mykamailio/sbin/kamailio[10772]: ERROR: tls [tls_util.h:42]: tls_err_ret(): TLS accept:error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca Aug 18 20:36:33 abc.domain /usr/local/mykamailio/sbin/kamailio[10772]: ERROR: tls [tls_server.c:1333]: tls_h_read_f(): src addr: 143.198.11.1:62033 ///client ip Aug 18 20:36:33 abc.domain /usr/local/mykamailio/sbin/kamailio[10772]: ERROR: tls [tls_server.c:1336]: tls_h_read_f(): dst addr: 172.36.53.1:5061 ///ec2 local ip Aug 18 20:36:33 abc.domain /usr/local/mykamailio/sbin/kamailio[10772]: ERROR: <core> [core/tcp_read.c:1481]: tcp_read_req(): ERROR: tcp_read_req: error reading - c: 0xffff80d78a10 r: 0xffff80d78b38 (-1) TLS Config [server:default] method = TLSv1+ verify_certificate = no require_certificate = nocertificate=/usr/local/ssl/certs/cert.pem private_key=/usr/local/ssl/certs/fullkey.pem server_name = abc.domain Also tried this conf [server:default] method = TLSv1+ ///tries all version options verify_certificate = no require_certificate = no certificate=/usr/local/ssl/certs/ abc.domain.crt private_key=/usr/local/ssl/certs/ abc.domain.key server_name = abc.domain.link openssl version OpenSSL 1.0.2k-fips 26 Jan 2017 please guide. -- Regards Arqum