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Help with Port Forwarding (I think)
(lemmy.moorefam.net)
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this post was submitted on 20 Jul 2023
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Tl;dr: you can add millions of sites to a single IP if you want. Very common in commercial hosting as well.
I would advise against running millions of domains on a single IP, you will run into issues with a lack of ports that are not in use for the reverse proxy/backend connections unless you are dealing with websites that are basically never used.
Sure.. this was just said to simplify what is technically possible. Should you? No maybe not, for multiple reasons. Can you, technically? Yes absolutely. I don't know what's the limit but I know that if you have to ask here on lemmy, you might not be anywhere near that limit. Unless you are the go daddy.
I mean... if you're running millions of sites on one box, and that itself isn't an issue, I'd assume your port saturation/traffic is pretty low.