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Re:What is NMAP and how to use it? by commandersaki on Friday April 14, 2023 @08:59PM (#35576680)
> It's conceptually similar to going to an apartment building and knocking on every door to see who's home and who's not.

Yet it's fine for solicitors?

Re:What is NMAP and how to use it? by JohnFen on Monday April 17, 2023 @10:57AM (#35601759)
Solicitors aren't generally welcome, either, but at least they aren't (usually) casing the place. And lots of people consider the practice of door-to-door solicitation to be abusive, too.