TLS certificate verification: Error, self signed certificate
TLS trace: SSL3 alert write:fatal:unknown CA
TLS trace: SSL_connect:error in SSLv3 read server certificate B
TLS trace: SSL_connect:error in SSLv3 read server certificate B
TLS: can't connect.
ldap_perror
ldap_start_tls: Connect error (-11)
        additional info: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed