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Comment by Flimm | Hacker News Reader

NTFS actually does support permissions, it's Windows that doesn't. NTFS also supports symbolic links and hard links.

Not contradicting just genuinely wondering, what do you mean by windows doesn't? I have different permissions setup for various users on different folders on ntfs volumes in regular windows 10 installs. Or do you mean another sort of permissions?

In this context they are talking about the POSIX permissions related to running Linux on the drive which NTFS supports but Windows does not use. Instead Windows uses another attribute for their security descriptor model which is also used by other non-file objects throughout the OS.

A lot of this stuff is actually legacy from when NT hosted POSIX and Windows subsystems simultaneously on the same kernel.

Sadly that stuff is long since dead but they have in part revived some of the ideas with their SQL Server for Linux port and WSL of course.

Not sure why I'm getting downvoted here. When POSIX subsystem of the NT kernel they added support for many POSIX style features. Namely POSIX ACL support, hard links and case-sensitivity.

I guess the reality of this is lost to history and folks like me that remember NT for what it was before it was relegated to just hosting Win32.

Does it support suid?

Doesn't WSL support Linux permissions via EAs? Couldn't they use the same model?

Um, I've had plenty of times I got a UAC (~windows sudo) prompt trying to access files I didn't have permissions to.

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