I try to enable tls on Issabel
tlsenable=yes
tcpenable=yes
tlsbindaddr=0.0.0.0
tlscertfile=/etc/asterisk/keys/asterisk.pem
tlscafile=/etc/asterisk/keys/ca.crt
tlscipher=ALL
tlsclientmethod=tlsv1
tlsdontverifyserver=no
and create cert asterisk.pem, ca.crt but error
ERROR[6560] tcptls.c: TLS/SSL error loading cert file. </etc/asterisk/keys/asterisk.pem>
permission asterisk:asterisk 664 on asterisk.pem, ca.crt
on Issabel i can't find command ./ast_tls_cert