this post was submitted on 28 Nov 2023
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Most likely it's fine. Though it's not terribly difficult to set up some flavor of VPN so you're not exposing 22 at all outside your network. Personally I use Wireguard.
but you still have to expose something to connect to wireguard?
The benefit of wireguard^ is it runs over udp and won't respond unless a peer with the right key hits it. ie a port scan won't reveal anything because there's no tcp port open to handshake, and wireguard won't respond to junk data coming in.
^ Most VPNs run over udp. But i'm not sure say OpenVPN will respond to random crap, it probably won't but i don't want to state categorically that it won't.
thank you for the explanation.
Of course. But it's just another layer to the onion. Pfblockerng, Crowdsec, Fail2Ban, wireguard....layers.
but wouldn't you have to pay a performance penalty running ssh on top of wireguard.