On 11/15/11 11:58 AM, Bill Bogstad wrote:
What is the expected result of doing a `chmod u+s /path/to/dir`? I assume that,
as the SGID bit ensures the group ownership is inherited, you'd expect files
created in a SUID to inherit the user ownership of the directory?
I wouldn't expect it to do anything. I can't find the POSIX
documentation on this right now, but wikipedia says that the SUID bit
is ignored on directories for UNIX/Linux. Perhaps we misunderstood
each other. I only meant that SGID would force the group ownership of
a new file to be the same as the parent directory. Looking back at my
previous email, I can see that I wasn't clear enough.
OK, if u+s doesn't do anything I can probably live with that. I'd have
to think about it -- I am more in the "power user" rather than "sys
admin" category, so +s and +t are not things I use much at all. Sticky
group ownership is good, though.
Anyway, thanks for these ideas! I'm off to play with them now.
Ian
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