On Apr 17, 2005, at 12:12, Xin Zhao wrote:
Thanks for your reply.
Yes. I know, with immutable, even root cannot modify sensitive
files. What I am curious is if an intruder has root access, he may
have many ways to turn off the immutable protection and modify files.
So immutable is designed just to prevent a valid root from making
silly mistakes?
Xin
But without the proper capability, root _can't_ change the immutable
bit. Of course, that also applies to DAC checks too. Personally, I
find the immutable bit most useful at preventing accidents. I have
several scripts designed specifically to access the same file, and I
want to prevent one of my admins from accidentally editing that file
by hand. The best way is with a big comment in the file itself and
the immutable bit.
Cheers,
Kyle Moffett
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