Messages in this thread | | | From | Kyle Moffett <> | Subject | Re: Why Ext2/3 needs immutable attribute? | Date | Sat, 23 Apr 2005 14:49:59 -0400 |
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On Apr 23, 2005, at 12:50, dean gaudet wrote: > On Sun, 17 Apr 2005, Xin Zhao wrote: > >> Why not simply unset the write bit for all three groups of users? >> That seems to be enough to prevent file modification. > > another usage: if you "chattr +i /var" while /var is unmounted, then > root > is unlikely to accidentally create files/dirs in /var -- and when you > mount the real /var on top it works fine. i tend to protect all my > mount > points this way (especially those in /mnt) to avoid my own dumb > mistakes.
If you chmod 000 /var beforehand (While it's still unmounted, of course), then it's also blindingly obvious that it's not mounted in an ls -l :-D. I too have used this trick on many/most of my systems.
Cheers, Kyle Moffett
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