Article 51E4R Why use nmap options -Pn or -sT

Why use nmap options -Pn or -sT

by
walterbyrd
from LinuxQuestions.org on (#51E4R)
I have looked up those options in the man pages, and in the manual. I know what they are supposed to do, but I don't understand what good they would do.

-Pn: Treat all hosts as online -- skip host discovery

Why treat an offline host as through it were online? In fact, how is that even possible?

-sT: Connect scan

I'm not even exactly sure what this does.latest?d=yIl2AUoC8zA latest?i=yo7lxPCcjZE:TP9nLbxtC0M:F7zBnMy latest?i=yo7lxPCcjZE:TP9nLbxtC0M:V_sGLiP latest?d=qj6IDK7rITs latest?i=yo7lxPCcjZE:TP9nLbxtC0M:gIN9vFwyo7lxPCcjZE
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