this post was submitted on 05 Mar 2024
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Fediverse
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You can already block federation with certain instances. And the only ones who can upload images are users that are locally registered to your instance.
I dont want to block full federation i want to block image federation from other servers so when the big ones are attacked with csam my server doesnt download it. If someone uploads an image to a community on my server does it not federate and get downloaded by my server?
Thumbnails from remote posts are stored on your server by default. However there is a setting to disable this.
https://github.com/LemmyNet/lemmy/blob/0.19.3/config/defaults.hjson#L54