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When I am on my Minecraft PC server a player has come on under my name and has had op and my rank. After I ban them they are able to change there names and come back I keep banning them and they keep coming back. Not really sure what to do.

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  • Were you using IP bans or username bans? Jan 16, 2021 at 3:21
  • Or UUID bans? IP bans are pretty much useless by themselves, you want a combination of an IP Ban + A UUID ban. It takes like 2-3 minutes to change ur IP
    – Penguin
    Jan 16, 2021 at 4:15

2 Answers 2

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You could try running your server with online mode (which means you might have to purchase a copy of Minecraft) so that players have to authenticate (proof that they're themself) themselves before they can join.

Otherwise a plugin like this (one that prevents play until you separately authenticate yourself after logging in) that prevents others from reusing a taken name also works.

Otherwise, what you'll have to live with it, and ban yourself (to stop others from using your name) and deop yourself whenever you log out.


To set your server to online mode, go to your server.properties file and edit:

online-mode=false

to:

online-mode=true

Either that or change your account's password and secure your email address.

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  • I own a Minecraft Premium account. How do I set my server to online mode? Feb 16, 2019 at 4:44
  • @SnoopyGames See update.
    – aytimothy
    Feb 16, 2019 at 5:32
  • @Snoopy There is nothing called a "premium account"! If you've bought it under that name, immediately call your bank to refund the payment, because you've been scammed! Only buy accounts directly from minecraft.net! Feb 16, 2019 at 14:38
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    @FabianRöling Minecraft Premium was the name of the paid Minecraft license back when they still offered a free version before 2015. see help.mojang.com/customer/en/portal/articles/… for more info.
    – Nzall
    Feb 16, 2019 at 15:32
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    @Baumi Um... Whitelists won't work if the user can be literally anyone on that list.
    – aytimothy
    Feb 19, 2019 at 23:42
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Instead of banning the username, try banning the IP that the player is logging onto your server through. You'll see it in the server log.

Unless they can somehow change their IP, which we hope is not the case, they should have a harder time getting onto your server.

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  • You can change your IP by unplugging and replugging in your router, which takes about 2 minutes to do.
    – Penguin
    Jan 16, 2021 at 4:57

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