Disable rm -rf * or rm -rf / in Cent OS Post: 302830203

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Top Forums UNIX for Advanced & Expert Users Disable rm -rf * or rm -rf / in Cent OS Post 302830203 by gacanepa on Monday 8th of July 2013 09:23:29 AM

07-08-2013

Registered User

Quote:

Originally Posted by shiek.kaleem

Can some one suggest me the way to disable " rm -rf * " or " rm -rf / " command execution permanently from the server. Any suggestion will be very much helpful .

I assume you're concerned over this so that people can't mess up your system. Actually I don't believe it's possible to do what you want for 2 reasons:
1) rm -rf *: this command deletes all files / subdirectories that are located inside your current working directory. If the right permissions are set, a normal user will not be able to delete anything over which he doesn't have write permissions. On the other hand, I (as a normal user) should be allowed to delete the files and the directories that I own.
2) rm -rf /: this command deletes *everything*, beginning at the root directory down to the last file / directory in the filesystem tree. Again, if you're not root, you won't be allowed to do it. Now, if you're root and still do that, you are either suicidal or up for a good punch in the face Smilie

.

So, rest assured that with the right permissions policy (everything comes down to it) your system should be safe.

If you have any further questions, do not hesitate to let us know Smilie

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LEARN ABOUT SUSE

chkstat

CHKSTAT(8)					      Tool to check and set file permissions						CHKSTAT(8)

NAME

       chkstat - Tool to check and set file permissions

SYNOPSIS

       chkstat [--set|-set] [--noheader] [[--examine file ]...]  [[--files filelist ]...]  [[--root directory ]...]  permission-file ...

DESCRIPTION

       The program /usr/bin/chkstat is a tool to check and set file permissions.

       Multiple  permissions  files can be given on the commandline.  If the permission files contain multiple entries for a single file, the last
       entry found will be used.

   General Options
       --set, -set
	      This option enables setting the file permissions, the default is to check and warn only.

       --noheader
	      Omit printing the output header lines.

       --examine file
	      Check permissions for this file and not all files listed in the permissions files.

       --files filelist
	      Check permissions for the files listed in filelist and not for all files listed in the permissions files.

       --root directory
	      Prefix the files given in the permissions files by this directory.

EXAMPLE

       The command

	      chkstat -set /etc/permissions

       will parse the file /etc/permissions and set the access mode and the user- and group memberships each file listed. The format for the input
       file is

       FILEPATH OWNER:GROUP MODE

       and wildcards are not supported for the filepath. Lines starting with '#' and empty lines are treated as comments.

COPYRIGHT

       1996-2003 SuSE Linux AG, Nuernberg, Germany.

       2008 SUSE LINUX Products GmbH

AUTHORS

       Reinhold Sojer, Ruediger Oertel, Michael Schroeder

       Useful changes and additions by Tobias Burnus

3rd Berkeley Distribution					    2008-04-17								CHKSTAT(8)