How to implement a separate server for images?

Question

CDN

There are sites.organization.com. All this is spinning on WP Multisite.
I want to implement files.organization.com, which will be on our server (with large disk space) and connect it to the WP system so that pictures are automatically loaded from the files server.
How in principle to implement this?

Answer 1

Not quite an answer to your question, but you didn't think to use cdn as an alternative.
As an example, give a link.
https://blog.selectel.ru/wordpress-plugin-dlya-ra...