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Old 04-01-2011, 12:09 PM   #1
newlinuxuser11
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Registered: Mar 2011
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Linux security question about ACL (Advanced Control List)


Hi,

I'm new to Linux, learning with unixacademy dvds and I have a question about ACL security feature. It isn't clear to me, when we use ACL with "setfacl" command to set new advanced permissions for the files, and then we list the files with "ls" command... Does it show that files have new, extended permissions? Is there an option for "ls" to do that?
Because, isn't it a security problem when the files have extended permissions but we don't know about it until we use "getfacl" (which, as I see it, we usually don't)?

Thanks!
 
Old 04-01-2011, 12:52 PM   #2
SL00b
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ACL actually stands for "access control list."

If you do an ls -l, you'll see something other than the standard rwx characters that lets you know there's an ACL there. For example:

Code:
-rw-r-----+ ... tux project3 ... mydir/myfile
The "+" character lets you know there's an ACL in play.

Here's a good guide on ACLs in general. I copied the example straight out of it. http://www.suse.de/~agruen/acl/chapter/fs_acl-en.pdf
 
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Old 04-21-2011, 12:26 PM   #3
newlinuxuser11
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Registered: Mar 2011
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Quote:
Originally Posted by SL00b View Post
ACL actually stands for "access control list."

If you do an ls -l, you'll see something other than the standard rwx characters that lets you know there's an ACL there. For example:

Code:
-rw-r-----+ ... tux project3 ... mydir/myfile
The "+" character lets you know there's an ACL in play.
Thanks! I missed "+", didn't pay attention, my mistake.
 
  


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