this post was submitted on 27 May 2024
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Hi!

I often read suggestions to use something like Tailscale to create a tunnel between a home server and a VPS because it is allegedly safer than opening a port for WireGuard (WG) or Nginx on my router and connecting to my home network that way.

However, if my VPS is compromised, wouldn't the attacker still be able to access my local network? How does using an extra layer (the VPS) make it safer?

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[–] lemmyvore@feddit.nl 1 points 5 months ago* (last edited 5 months ago)

I think you misunderstood the advice. If your goal is to open your services to the internet then any of the approaches can let in an attacker. It would depend on whether any of the things you expose to the internet has a remote exploitable vulnerability.

A long-standing software like SSH or WG that everybody relies on and everybody checks all the time will have fewer vulnerabilities than a service made by one person, that you expose over reverse proxy; but they're not 100% foolproof either.

The Tailscale advice is about connecting your devices privately, on a private mesh network that is never exposed to the internet.

If you're behind CGNAT and use a VPS to open up to the internet then any method you use to tunnel traffic from the VPS into your LAN will have the same risk because it's the service inside that's the most vulnerable not the tunnel itself.