I have a client - server application which works as following.

The server is hosted in a linux machine and the clients are up in citrix(XEN) virtual machines.

I have enable stunnel encry. in between this environments but i keep getting some connection issues from time to time.

To be more clear the client application starts a session for you from the virtual machine (xen) so the stunnel.exe running there in the server is meant to encrypt traffic of around 100 users(from win AD who have access to use that resource in the server)

, port configured in VM machine 1001 accept - linux.host:1002 connect with linux accept on 1002 - localhost:1000. the channel opened between the VM and Linux is used by many users simultaneous.