default: server mode
default: /var/openssl/certs/stunnel.pem for server mode, none for client mode
level 1 - verify peer certificate if present level 2 - verify peer certificate level 3 - verify peer with locally installed certificate default: no verify
default: /var/openssl/certs/trusted
default: 300 s.
currenty supported: smtp
default: inetd mode
default: background in daemon mode
execute local inetd-type program
(ip defaults to INADDR_LOOPBACK)
stunnel -d 993 -l /usr/sbin/imapd -- imapd
stunnel -d 2020 -L /usr/sbin/pppd -- pppd local
-----BEGIN RSA PRIVATE KEY----- [encoded key] -----END RSA PRIVATE KEY----- [empty line] -----BEGIN CERTIFICATE----- [encoded certificate] -----END CERTIFICATE----- [empty line]