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Why do I need a different login for lemmy.one? (lemmy.world)

submitted 2 weeks ago* (last edited 1 week ago) by [email protected] to c/[email protected]

6 comments fedilink hide all child comments

Not sure how I got to lemmy.one but when it said I had to login to comment on something, my userid/pwd that works here didn't work and the registration link said user registration is closed. Aren't lemmy logins supposed to work across the whole federation? Or are there multiple federations and lemmy.one is entirely different? Maybe I misunderstand the whole scheme of lemmy.

edit: Okay, after a little experimentation I think I get it. On the domain lemmy.world, when logged in, if I look at a thread I see the comment box, but if I go to lemmy.one and find the same thread it says I must login to comment. With the explanations everybody gave here, this makes sense now. So thank you very much, I appreciate the help!

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[–] [email protected] 29 points 2 weeks ago

The logins aren't federated, the content is. Each instance receives a copy of everything, and normally you browse other instance's content from your home instance. In your case you'd access lemmy.one's content from your home instance, lemmy.world. If the logins were federated we wouldn't need those domains after our usernames!

The email analogy still works for this: if you're on Gmail, you don't go log in to Outlook to send an email to your friend: from gmail directly, you send an email to your friend and Gmail's server takes care of sending it out to Outlook.

There's browser extensions to help go back to your home instance, as the linking on Lemmy is sometimes a bit weird and you do end up on other instances every now and then.

[–] [email protected] 20 points 2 weeks ago (1 children)

Your account will only log you into your home instance. To interact with threads on other instances, you'd need to locate the post from within your own feed on your home instance.

[–] [email protected] 16 points 2 weeks ago (1 children)

Which usually you can just paste the URL in your home instance's search to get it

[–] [email protected] 4 points 2 weeks ago

Ah, I had no idea that worked! Good to know.

[–] [email protected] 11 points 2 weeks ago* (last edited 2 weeks ago)

Aren’t lemmy logins supposed to work across the whole federation?

No, they are not. Every instance is supposed to have it's own logins. Everything is working as intended.

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

No, this isn't how this works. Each instance manages its own users in its own database. All that is federated is the posts and comments. You should be able to post and comment to other instances' communities but if you want an account on another instance you have to create one.