this post was submitted on 17 Sep 2023
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A trip to shodan should be enough to convince you that ipv4 space is small enough that it really doesn't buy you much to hide anything. Maybe a tiny bit of extra privacy by not associating an identity to an IP, but even that is pretty quickly blown away if you host anything identifiable. Which is the small web we'd benefit from restoring anyway.
The difference is a random IP is a random IP. You don't know who it's connected to. Once someone says "This is my IP" you now have it connected to a specific person, and other specific people may want to fuck with the original person.
Bots already scan all open IP addresses for vulnerabilities, but hackers live for people who give up information for free because fucking with someone who thinks they're safe from it all is fun to them apparently.
Right, that's the privacy aspect I mentioned. PII tied to your IP is now available, even if it's just a pseudoidentity. But hosting anything also likely throws that out the window in the same way. Unless you have more users on your hosted service, but even then it narrows things down.