There are numerous options for security and using your own certificates etc. The above configuration uses all the default settings for stunnel. Add Connection List entries for each SUT but pointing to the local address and port as in step 3.If you have installed stunnel using the installer, there will be various startup options in the Windows Start Menu to start it as a GUI using stunnel.exe or as a service. It will automatically load the nf in the same folder. If running from a command window, run “tstunnel.exe” on each machine.This assumes your VNC server is using the default port 5900. Edit the nf file on each SUT to add the lines:.The local port, 5801, can be any free local port. Replace MY_SUT_HOST1 with your SUT host or IP address. Edit the nf file on the Eggplant Functional PC and add the lines:.The installation folder will contain an example nf file. Also install or copy the stunnel files onto the SUT (or you can use a shared network folder). Run the installer or extract the files from into a folder using a tool such as 7zip on the Eggplant Functional system.The client stunnel can be configured so the client can connect to multiple servers. The VNC connection is then tunneled through the encrypted connection and results in a further local connection on the server between the server stunnel and the VNC server. This stunnel then creates an encrypted connection to stunnel running on the system under test. The VNC connection is configured so that instead of creating a direct unencrypted connection between the client and server, the client connects to a local stunnel instance. See the stunnel license page for details. Stunnel is free software released under the GNU GPL2 so there are no commercial restrictions for usage although there can be restrictions on the security algorithms for certain regions. For Linux, Unix, or Mac platforms, you can build from source although you may prefer to use SSH tunneling (see Tunneling Using SSH, below). Stunnel has binary installers or stand alone executables for Windows and has a text configuration file. To implement encrypted communication between Eggplant Functional and a system under test (SUT), we recommend using stunnel from Stunnel creates a Secure Socket Layer (SSL) encryption wrapper for the VNC connections that is transparent to both the client and server. You are here: Encrypted VNC Connections with Stunnel
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