Re:Security by obscurity is underrated
by magicalhippo on Saturday September 12, 2020 @04:29AM
(#24450888)
Fair enough, guess I was restricting my view to my bubble. For a single server sure defense in depth should work, assuming you're not running the VPN on the same box.
With your configuration, all that needs to exist is an SSH 0 day to gain access to the server. With a VPN, they need that AND a 0 day for the VPN software to gain access to the server.
You can have a more complex setup with a VPN, but that isn't the discussion here - the discussion is securing SSH. If you want to provide VPN access to an array of other services, or as access to a corporate LAN or similar, then that's another conversation that has to involve the specifics of those services and that configuration. It's not what is being recommended here.