Claudia, Yes, to create a tunnel you need to configure stunnel on both sides, except in those cases when one of the extremes already supports TLS. Looks like yours is not one of those cases. Regards, Jose -----Original Message----- From: "Claudia Porta" <claudia.porta@bancaakros.it> Sender: "stunnel-users" <stunnel-users-bounces@stunnel.org> Date: Wed, 15 Apr 2015 14:51:07 To: <stunnel-users@stunnel.org> Subject: [stunnel-users] Understanding communication _______________________________________________ stunnel-users mailing list stunnel-users@stunnel.org https://www.stunnel.org/cgi-bin/mailman/listinfo/stunnel-users