Hello:
I'm having trouble getting a website entry to call an SSH Tunnel entry, which itself uses an Azure Bastion SSH tunnel to connect.
It works great if I start the SSH Tunnel entry and then have the Website entry establish connection. 
However, when I tell the website entry to use SSH link of the existing/working SSH entry, I get this error when trying to start the website.
Can you provide some pointers how to resolve this issue?
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Hello
This is strange, I'm not sure why it's not working and I'd probably need to setup something similar on my side to test it. There must be something with the "nesting" of VPNs in this case that's not working correctly.
However I wonder if we couldn't do something better here. Azure Bastion does allow us to tunnel arbitrary ports; however I think there's an artificial restriction inside RDM that means it only works when linked with an RDP or an SSH entry. Is that the reason for your setup (Website > SSH Tunnel > Azure Bastion)? Would it be better if you could tunnel an arbitrary port through Azure Bastion and assign the VPN directly on the website entry?
Thanks and kind regards,
Richard Markievicz