I downloaded the pre-compiled Windows version of Stunnel (stunnel-4.25-installer.exe). We need to deploy this on 2 machines A and B. The way it works is: - B connects to A - then A connects to B How should I configure Stunnel on machine A, since, in the first case A is the Server and in the 2nd scenario A becomes the Client. Questions on deploying Stunnel on machine A: - Can I run just 1 instance of Stunnel on machine A? It seems I cannot since I have to set the "client = yes" in the 2nd scenario - Do I need to run multiple instances, 1 running as the Server and the 2nd as the Client? Here is the config file I used on the machine A: **************************** cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [iPerfS] accept = 5010 connect = 127.0.0.1:5001 [iPerfS] accept = 5002 connect = 12.50.0.25:5020 **************************** Here is the config file I used on the machine B: **************************** cert = stunnel.pem socket = l:TCP_NODELAY=1 socket = r:TCP_NODELAY=1 [iPerfC] accept = 5001 connect = 12.50.0.26:5010 [iPerfS] accept = 5020 connect = 127.0.0.1:5002 **************************** Regards, Dippen