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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