this post was submitted on 10 Jun 2023
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Hi,

My instance has been running for a day or so. In that time, three users have randomly shown up on my admin panel as Banned. There are no pending applications. What exactly are those users doing?

My first instinct was it was an issue with emails and signup as I didn't have email working properly at first, so I unbanned all three users. ๐Ÿคทโ€โ™‚๏ธ

Was that a mistake? What does it mean? What could be causing it?

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[โ€“] lemann@lemmy.one 3 points 1 year ago (1 children)

I remember reading somewhere that bans are federated, if you have a look in the instance modlog (bottom of every page?) you should find out who banned that user, why they were banned, and which instance they were banned from

I don't run a lemmy instance (yet?) so this is just based on looking at existing discussions

[โ€“] slashzero@hakbox.social 4 points 1 year ago

Interesting... I will go take a look now! Thanks for this information.

[โ€“] PriorProject@lemmy.world 2 points 1 year ago (1 children)

Check https://hakbox.social/modlog while logged in as admin. You ought to be able to see who is executing moderation actions there.

I don't know a lot about moderation/admin, but I believe mod actions federate around the network, at least by default. So probably an admin or community mod on an instance you federate with blocked those users and the ban federated to your instance.

[โ€“] slashzero@hakbox.social 2 points 1 year ago (2 children)

Yes, I see that now! Interesting, that is really cool actually that the ban action is federated! So, if a user is banned on one instance, they are banned everywhere?

I guess I should re-ban the 3 I unbanned?

[โ€“] alex@agora.nop.chat 4 points 1 year ago* (last edited 1 year ago) (1 children)

The ban will only federate out if they're banned from the instance they registered on - their home instance.

i.e. if badfaith@lemmy.ml is banned from beehaw.org, nothing would propogate out because they're just banned from that instance.

However, if badfaith@lemmy.ml was banned from lemmy.ml, they can't log in anymore - they've been banned from their home instance, so they can't interact with any communities. That ban will federate.

Unbanning them from your instance won't make a difference either way. Because they can't log in to their own instance, your unbanning will have no effect.

[โ€“] slashzero@hakbox.social 1 points 1 year ago

Perfect explanation. Thank you for that.

[โ€“] PriorProject@lemmy.world 2 points 1 year ago

Yeah, I'm not a mod or admin. There's probably some etiquette here but I have no insights.

[โ€“] pe1uca@lemmy.pe1uca.dev 0 points 1 year ago (1 children)

You can check the modlog (at the bottom of the UI you'll finde the link), most probably those were banned in another instance.
It is weird they show up in our own instances as banned, not sure what happens when you unban them.

[โ€“] slashzero@hakbox.social 2 points 1 year ago* (last edited 1 year ago) (1 children)

Yeah, I don't know either, but I "re-banned" them on my instance with a comment of why they were previously banned and by who.

I would think that even if the ban audit log shows up on our individual instances, we would not be able to unban them on the other instance as we aren't admins there. I also don't think the ban on one instance would carry over to other instances, but I don't know enough about lemmy to know for sure.

This feels like a display bug in the lemmy-ui, where it's showing the audit / ban log for all instances as if they were on your instance.

[โ€“] alex@agora.nop.chat 1 points 1 year ago (1 children)

https://github.com/LemmyNet/lemmy/issues/2961

There's an issue already in place for this, but the Devs are currently focussed on finishing up a big rework of how the UI is implemented to help with load issues, so I wouldn't expect it to change straight away.

[โ€“] slashzero@hakbox.social 1 points 1 year ago

That is good to hear, because the observed behavior does feel like a bug.

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