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submitted 7 months ago* (last edited 7 months ago) by PaX@hexbear.net to c/linux@lemmy.ml

can someone else use my machine as a router to forward traffic to anywhere else on the internet?

I'm not entirely sure what the security implications of that would even be if true but probably nothing good

I don't have any other routes in my routing table other than my "default" route and this machine is reachable via a globally routable IPv4 address. Also I think there are probably other machines on the same subnet (cloud VPS)

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[-] PaX@hexbear.net 3 points 7 months ago* (last edited 7 months ago)

Ohh that's true, I didn't think about that. It would be difficult to route anything through it unless you were connected directly to it with nothing in-between because no other router would forward packets destined for somewhere else to my machine (except maybe in the extremely unlikely case of source routing?). It seems obvious now lol, thank you!

I'll write some firewall rules just in case

this post was submitted on 19 Apr 2024
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