I have just logged in on my own Lemmy instance, and I see a list of banned users in the administrative area, from other instances. I have not banned anyone myself.
How does it work? If you’re banned from an instance, you’re banned from the whole federation?
Yes, instance bans propagate out to the federation. But if user@a.com gets banned, they can just go sign up as user@b.com.
Thank you, it appears to be this way.
Are those instances you federate with?
Yes, they all only from instances i federate with.
Same question.
My theory is:
When the instance admins ban one of the users off of their instance, the ban event gets transmitted to everyone that’s federated, so that other instances can stop seeing posts from that user too.That would imply that any instance admin, even those that created theirs for themself only, can just ban users on other instance. That would be a major attack vector and it kind of defeats the purpose of the autonomy each instance is supposed to have…
I assume it only gets shared when the admin of the instance where the user is registered bans them, but again, that’s only a guess.
Go to the modlog of your instance and you can see they were banned of the mod of the original instance.
I assume it only gets shared when the admin of the instance bans a user that’s registered on the other instance, but again, that’s only a guess.
And that would mean I can set up my own instance, ban e.g. you, and you’d get banned on other instances as well. That doesn’t sound like a well thought out design choice.
