this post was submitted on 20 Jul 2023
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Lemmy Support

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Support / questions about Lemmy.

Matrix Space: #lemmy-space

founded 5 years ago
MODERATORS
 

There have appeared hundreds of communities on my instance I have never searched. Where do they come from? Is it some spam attack? How do I prevent this, and how do I get rid of them?

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

Do you guys think I should enable captcha?

[–] [email protected] 5 points 1 year ago* (last edited 1 year ago)

Unless you want the job of moderating your users you should close registration.

Barring that you should make sure email verification is enabled, captcha, and maybe even the questionnaire.

As an admin you can go to the applications icon, looks like a clipboard. Look at all, and see who's joined. If they're unwanted or bots, ban them.

[–] [email protected] 4 points 1 year ago (1 children)

Uh yes... There are instances (mine included) that'll automatically defederate you if you have too many users with too few interactions, so better enable captcha if you're worried about bots.

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

How do I configure mine to do so? I mean automatic defederation

[–] [email protected] 5 points 1 year ago (1 children)

I made an announcement post for my community here and it has a GitHub link. I think, the repository has a python script that'll do it.

[–] [email protected] 1 points 1 year ago

Thanks! I wonder if there's a script that purges communities that have 0 subscribers on instance