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What's the real danger of opening ports? (feddit.it)

submitted 10 months ago by dontblink@feddit.it to c/selfhosted@lemmy.world

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Some services run really good behind a reverse proxy on 443, but some others can really become an hassle.. And sometimes just opening other ports would be easier than to try configuring everything to work through 443.

An example that comes to my mind is SSH, yeah you can use SSLH to forward requests coming from 443 to 22, but it's so much easier to just leave 22 open..

Now, for SSH, if you have certificate authentication or a strong password, I think you can feel quite safe, but what about other random ports? What risks I'm exposing my server to if I open some of them when needed for a service? Is the effort of trying to pass everything through 443/80 worth it?

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[–] lka1988@lemmy.dbzer0.com 2 points 10 months ago* (last edited 10 months ago)

The only ports I have open are 80 and 443, and 80 just redirects to 443.

I also have a BeamMP server that has to have a port open because that's just how it works, but that VM sits on its own DMZ'd VLAN, and I only open the port when I'm actively playing the game.