Hi Alex, You could install Wireshark on the server side and sniff the network packets to confirm whether they are in plaintext or not. Kind regards On 10 May 2018 at 06:56, Alex Birchall <A.Birchall@mdx.ac.uk> wrote:

Hello,

I have Stunnel installed on Windows Server 2008 R2, running as a service. I have it installed as a client on a Windows POS 2009 device.

This setup is working, in that the client is operating correctly and using Stunnel.

But how can I tell if communications between the Stunnel client and the Stunnel server are being encrypted, rather than Stunnel just doing port forwarding?

I did read the client needs to have access to the server's certificate, but at the moment it does not.

Alex

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