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Old 07-12-2011, 01:04 PM   #1
mattgeorge
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File Permissions


I was checking the file permissions by using the ls -l command. It seems some files have permission as :


-rwsr-xr-x 1 root root 35864 Jan 20 2009 ping*
-rwxr-xr-x 1 root root 345764 Jan 21 2009 tcsh*
-rwsr-xr-x 1 root root 38936 Jan 21 2009 umount*
-rwsr-xr-x 1 root root 58324 Jan 21 2009 mount*

here, for the files ping,umount and mount the execute privilege for the user is set as "s".. i am un familiar with "s" in access privilileges.

Thanks in advance for the help.
 
Old 07-12-2011, 01:12 PM   #2
Tinkster
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setuid
 
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Old 07-12-2011, 01:12 PM   #3
alfredo10
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Hi!
Please see here:
http://en.wikipedia.org/wiki/Filesystem_permissions
alfredo
 
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Old 07-12-2011, 01:13 PM   #4
colucix
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It is the setuid access right, to run the executable with the permissions of the owner of the executable (in this case root).
 
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Old 07-12-2011, 01:15 PM   #5
catkin
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The s is showing that setuid is set.
 
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