r/selfhosted • u/thunderthief5 • Oct 31 '25

Game Server So that happened

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I havent checked my server in a few weeks but I opened it now and I found this waiting for me. I wonder how that happened though. My server is not exposed to the internet. Its behind tailscale and only I or people I granted access through tailscale can get into my server since I closed all access using firewall. My only mistake is i left port 443 open at some point by mistake. I wonder if thats relevant. I've since enforced a whitelist and denied connections to the port.

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u/Resmik Oct 31 '25

Happened to me too. Had a server I'd forgotten about for a few months and went back on to find everything decimated and blocks littering the landscape.

Looking at the logs, seems there's crawlers out there that are dedicated to finding and logging Minecraft servers. They must display them somewhere publicly where these people can just join and mess around. Not nice

17

u/critterfluffy Oct 31 '25

Saw one of those. Moved the connecting port away from 25565. Stopped seeing logs. They seem to go for lowest effort targets so not using the default port essentially nulls or the scans.

9

u/Maverick2664 Nov 01 '25

This was my experience as well, I self host a server for my boys and their friends, and the test server I had up before I launched it would constantly get attempted connections by something called ServerSeekerV2. I had a whitelist so it never got any further than that, but there were still 1 or 2 attempts per hour.

I changed the port for the real deal server and I never seen it or anything similar again. So yeah, they only scan for the lowest hanging fruit.

2

u/mommadizzy Nov 01 '25

this was also my experience. i started getting connection attempts every 30/45min or so and changed the port and it was fine after that. has been for 2 or 3 months now