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Operating Systems Linux Red Hat Showing all users in 'users' and 'top' commands Post 302596203 by shoaibjameel123 on Monday 6th of February 2012 11:25:44 PM
Old 02-07-2012
Showing all users in 'users' and 'top' commands

Hi All,

I work in a multi user environment where my school uses Red Hat Linux server. When I issue commands such as "top" or "users", I get to see what others are doing and what kinds of applications they are running (even ps -aux will give such information). "users" will let me know who else is currently logged in. I use Linux at my school not as a superuser.

My question is "Is it not a flaw in the design of the Operating System that I cannot have my privacy in the multi user environment?" The fact is "Why should others see what I am doing on a particular machine?" Only Administrator should have that right.

I am sure there are plenty of talented minds who design the OS but why is this not incorporated in OS? At least there should be an option to disable or enable this. Or is there any specific reason why OS designers have not incorporated this feature in the kernel or even in commands such as top, ps or users?

Last edited by shoaibjameel123; 02-07-2012 at 02:26 AM..
 

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BOS_LISTUSERS(8)					       AFS Command Reference						  BOS_LISTUSERS(8)

NAME
bos_listusers - Lists the privileged users from the UserList file SYNOPSIS
bos listusers -server <machine name> [-cell <cell name>] [-noauth] [-localauth] [-help] bos listu -s <machine name> [-c <cell name>] [-n] [-l] [-h] DESCRIPTION
The bos listusers command lists the user names from the /etc/openafs/server/UserList file on the file server machine named by the -server argument. The users are authorized to issue privileged bos and vos commands. To edit the list of users, use the bos adduser and bos removeuser commands. OPTIONS
-server <machine name> Indicates the server machine from which to display the UserList file. Identify the machine by IP address or its host name (either fully-qualified or abbreviated unambiguously). For details, see bos(8). For consistent performance in the cell, the output must be the same on every server machine. The bos adduser reference page explains how to keep the machines synchronized. -cell <cell name> Names the cell in which to run the command. Do not combine this argument with the -localauth flag. For more details, see bos(8). -noauth Assigns the unprivileged identity "anonymous" to the issuer. Do not combine this flag with the -localauth flag. For more details, see bos(8). -localauth Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. The bos command interpreter presents the ticket to the BOS Server during mutual authentication. Do not combine this flag with the -cell or -noauth options. For more details, see bos(8). -help Prints the online help for this command. All other valid options are ignored. OUTPUT
The output lists the user name of each user entitled to issue privileged bos and vos commands. EXAMPLES
The following example lists the users from UserList file on the machine "fs4.abc.com". % bos listusers fs4.abc.com SUsers are: pat smith jones terry PRIVILEGE REQUIRED
None SEE ALSO
KeyFile(5), UserList(5), bos(8), bos_adduser(8), bos_removeuser(8) 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 BOS_LISTUSERS(8)
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