I'm sure this is a fairly common scenario - our on-premise Tableau Server requires a VPN connection to reach the source data for a nightly refresh. Looking for some recommended approaches to either open the VPN connection as part of the scheduled extract refresh and then close upon completion or perhaps any other options? For context, our Tableau Server will be on the public domain with an SSL certificate and we need to effectively secure any pathway to the backend source data.
On Tableau's end there's not much you can do but you may want to look into workarounds for scripting VPN authentication to run before a tabcmd refresh of the extract. Also, implementing something like this may help: