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Security of running Headscale on a VPS (programming.dev)

submitted 1 year ago by McMonster@programming.dev to c/selfhosted@lemmy.world

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Did anyone paranoid like me research security implications of running Tailscale/Headscale or similiar?

Right now I'm self-hosting headscale controller in my LAN and expose it to public Internet. I'm thinking about moving it to a VPS, but I'm a little paranoid about exposing the software that controls connectivity between my and family machines to a third party, be it official Tailscale controller or VPS provider where I run Headscale.

Currently I think that even in the worst case of someone compromising my Headscale instance it should still be fine as long as all of the machines are properly firewalled and all of the exposed apps and services are behind authentication. I run everything behind Authentik and only keys for SSH access. I will certainly add some network monitoring to all of that.

Any opions and suggestions on this matter are welcome.

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[–] nick_99@sh.itjust.works 3 points 1 year ago

Headscale running as it's own user with tailscale ACLs. Tailscale calls home to headscale via HTTPS and gets the info. Assuming the person doesn't get root access it's should be fairly safe. With tailscale ACLs you set up whicu systems can reach where. Also don't forgot you can use UFW/iptables in each client that way it's still locked down.