Minecraft

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Offline Mode Server Security (feddit.org)

submitted 3 weeks ago by [email protected] to c/minecraft

2 comments fedilink hide all child comments

If I run a server with offline-mode=false, hide-online-players=true and white-list=true, how easy would it be for an attacker to find out which names are whitelisted to join with a whitelisted name? Is it brute-force hard or does the server leak that info somewhere? How to secure an offline mode server against this?

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[–] [email protected] 13 points 3 weeks ago (1 children)

I’d recommend a separate authentication plugin independent of Mojang accounts. For example this one (didn’t test it myself).

[–] [email protected] 2 points 3 weeks ago

Yes this is necessary for offline mode security. Most attacks come from the attacker joining as the operator and doing whatever, and a auth plugin can stop that. Additionally, make sure that you have a backup system set up, and confirm that the backups work.