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Full Discussion: setuid & sticky bit
Top Forums UNIX for Dummies Questions & Answers setuid & sticky bit Post 302578014 by Corona688 on Wednesday 30th of November 2011 01:46:48 PM
Old 11-30-2011
Quote:
Originally Posted by kkalyan
Can anyone explain me difference between setuid and sticky bit?
It's the same bit. It just has different meanings in different places.

I don't think it means anything for an ordinary file.

For an executable file, it runs the program as the file's owner -- it sets the UID with the setuid() call,, hence you sometimes hear it called "setuid bit". setuid doesn't work for shell scripts.

For a library file, it means 'remember the contents of this file in swap space', a performance tweak to keep busy libraries closer to memory. Many systems don't honor this anymore.

For directories, it means "only a file's owner is allowed to delete files in this directory". The usual behavior is that anyone with write-permissions can delete files.
Quote:
and also between setuid and chown?
setuid is a flag. chown is a program.
 

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LEARN ABOUT DEBIAN

fs_getcellstatus

FS_GETCELLSTATUS(1)					       AFS Command Reference					       FS_GETCELLSTATUS(1)

NAME

       fs_getcellstatus - Reports whether setuid programs are honored in a cell

SYNOPSIS

       fs getcellstatus -cell <cell name>+ [-help]

       fs getce -c <cell name>+ [-h]

DESCRIPTION

       The fs getcellstatus command reports whether the Cache Manager allows programs fetched from each specified cell to run with setuid
       permission. To set a cell's setuid status, use the fs setcell command; fs_setcell(1) fully describes how AFS treats setuid programs.

OPTIONS

       -cell <cell name>+
	   Names each cell for which to report setuid status. Provide the fully qualified domain name, or a shortened form that disambiguates it
	   from the other cells listed in the local /etc/openafs/CellServDB file.

       -help
	   Prints the online help for this command. All other valid options are ignored.

OUTPUT

       The output reports one of the following two values as appropriate:

	  Cell <cell> status: setuid allowed
	  Cell <cell> status: no setuid allowed

EXAMPLES

       The following example indicates that programs from the cell "abc.com" are not allowed to run with setuid permission.

	  % fs getcellstatus abc.com
	  Cell abc.com status: no setuid allowed

PRIVILEGE REQUIRED

       None

SEE ALSO

       CellServDB(5), fs_setcell(1)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26						       FS_GETCELLSTATUS(1)
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