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How can I keep my forwarded port secure? (kbin.earth)

submitted 2 months ago by strawberry@kbin.earth to c/selfhosted@lemmy.world

69 comments fedilink hide all child comments

I just setup a minecraft server on an old laptop, but to make it acessible i needed to open up a port. Currently, these are the ufw rules i have. when my friends want to connect, i will have them find their public ip and ill whilelist only them. is this secure enough? thanks

`Status: active

To Action From

22/tcp ALLOW Anywhere Anywhere ALLOW my.pcs.local.ip`

also, minecraft is installed under a separate user, without root privlege

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[–] mark3748@sh.itjust.works 21 points 2 months ago (20 children)

Why is port 22 open? Is this on your router as well or just the server?

This is SSH, which you should pretty much never have open (to the internet! Local is fine) MC is by default 25565. You will have every bot on the internet probing that port.

[–] i_am_not_a_robot@discuss.tchncs.de 21 points 2 months ago (15 children)

Having SSH open to the internet is normal. Don't use password authentication with weak passwords.

[–] teawrecks@sopuli.xyz 7 points 2 months ago (7 children)

Normal for who? I wouldn't expose SSH on 22 to the internet unless you have someone whose full time job is monitoring it for security and keeping it up to date. There are a whole lotta downsides and virtually no upsides given that more secure alternatives have almost zero overhead.

[–] keyez@lemmy.world 3 points 2 months ago (1 children)

I had it open for a web server for 2.5 years because I was lazy and my IP changed a lot and I traveled and didn't have a VPN setup and never had any issues as far as I could tell. Disabled password and root auth but was also fine with wiping that server if there were issues. It's certainly not recommended but isn't immediately always going to be an issue

[–] atzanteol@sh.itjust.works 3 points 2 months ago

ssh is one of the most secure servers you can run. The tailscale propaganda is crazy in this community.

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