submitted 6 months ago by Ponziani@sh.itjust.works to c/linux4noobs@programming.dev

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Hello I am wondering if there is increased network/packet security by connecting to a server over ssh through a VPN hosted by that same server as opposed to without first tunneling by VPN. I imagine with or without tunneling through a VPN there would be latency/speed differences too?

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[-] Ponziani@sh.itjust.works 2 points 6 months ago

This is the first that I have heard about setting the SSH port to only accept connections from the VPN, is there a term or something I can search about this online? Or is this basically just allowing port 22 open on a device and not forwarding the port on the router as when a different device tunnels into the same network through the VPN it can already talk to the first device?

[-] lurch@sh.itjust.works 1 points 6 months ago* (last edited 6 months ago)

You would either configure the Linux firewall of the router or server to drop everything on the SSH port not from the VPN IP/interface or change the ListenAdress in /etc/ssh/sshd , but be careful: Don't lock yourself out!

[-] Ponziani@sh.itjust.works 1 points 6 months ago

Thank you for the info! This is very helpful to me.

this post was submitted on 18 May 2024

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