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Old 02-11-2005, 06:16 PM   #1
ppcthug
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can I shut down my comp without logging into root?


I can't seem to use the shutdown command without switching to root login, is there a way to allow other users to shutdown the computer?
 
Old 02-11-2005, 06:31 PM   #2
Mara
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Yes. Do you use a graphical login manager (do you log in using a graphical tool). Which one is it? KDM or GDM?
 
Old 02-11-2005, 06:41 PM   #3
ppcthug
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I'm useing gnome.

Last edited by ppcthug; 02-11-2005 at 08:52 PM.
 
Old 02-12-2005, 01:59 AM   #4
ppcthug
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and gnome = gdm right?
 
Old 02-12-2005, 02:47 AM   #5
Linux~Powered
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Use sudo. It's a program used to give underprivilaged users rights to use root's commands. It's probably installed on your box already, so just "man sudo".
 
Old 02-12-2005, 03:17 PM   #6
ppcthug
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no manual entry for sudo, nutbunnies.
 
Old 02-12-2005, 03:42 PM   #7
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http://www.aplawrence.com/Basics/sudo.html
 
Old 02-12-2005, 09:39 PM   #8
DaHammer
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Here's one way.

1) Created a new group named "pwroff"
Code:
	root@corvette:~# groupadd pwroff
2) Then find what groups you belong too & add yourself to the group:
Code:
	root@corvette:~# groups hammer
	hammer : users
	root@corvette:~# usermod users,pwroff hammer
3) Then edit /etc/sudoers, using visudo, to add the commands for the pwroff group.
Code:
root@corvette:~# visudo
Then add these 2 lines at the bottom:
NOTE: If you don't want to have to enter root's password to shutdown then set the NOPASSWD flag.
Code:
%pwroff corvette = NOPASSWD: /sbin/poweroff
%pwroff corvette = NOPASSWD: /sbin/reboot
4) Then add a couple 1 line scripts to your $PATH so you can just invoke the command "poweroff" & "reboot", without having to enter the whole thing. I choose /usr/bin for these scripts because it comes after /sbin in root's $PATH, meaning the actual reboot & poweroff commands would still be invoked by root instead of these 2 scripts. Anyway, make sure you don't overwrite the real poweroff & reboot programs, wherever they are.
Code:

cat > /usr/bin/reboot << "EOF"
#!/bin/sh

sudo /sbin/reboot
EOF
Code:

cat > /usr/bin/poweroff << "EOF"
#!/bin/sh

sudo /sbin/poweroff
EOF
5) Now change the group and permissions on these 2 scripts:
Code:
chgrp pwroff /usr/bin/poweroff
chgrp pwroff /usr/bin/reboot
chmod ug+x /usr/bin/poweroff
chmod ug+x /usr/bin/reboot
That's it, now anyone that is a member of the pwroff group can reboot & poweroff the PC without a password or without being root.

Last edited by DaHammer; 02-13-2005 at 12:22 AM.
 
Old 02-12-2005, 09:49 PM   #9
btmiller
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In some distros, you can also create afile called /etc/shutdown.allow containing a list of users allowed to shut down the system.
 
Old 02-13-2005, 06:19 AM   #10
nixcraft
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Quote:
Originally posted by DaHammer
Here's one way.

1) Created a new group named "pwroff"
Code:
	root@corvette:~# groupadd pwroff
2) Then find what groups you belong too & add yourself to the group:
Code:
	root@corvette:~# groups hammer
	hammer : users
	root@corvette:~# usermod users,pwroff hammer
3) Then edit /etc/sudoers, using visudo, to add the commands for the pwroff group.
Code:
root@corvette:~# visudo
Then add these 2 lines at the bottom:
NOTE: If you don't want to have to enter root's password to shutdown then set the NOPASSWD flag.
Code:
%pwroff corvette = NOPASSWD: /sbin/poweroff
%pwroff corvette = NOPASSWD: /sbin/reboot
4) Then add a couple 1 line scripts to your $PATH so you can just invoke the command "poweroff" & "reboot", without having to enter the whole thing. I choose /usr/bin for these scripts because it comes after /sbin in root's $PATH, meaning the actual reboot & poweroff commands would still be invoked by root instead of these 2 scripts. Anyway, make sure you don't overwrite the real poweroff & reboot programs, wherever they are.
Code:

cat > /usr/bin/reboot << "EOF"
#!/bin/sh

sudo /sbin/reboot
EOF
Code:

cat > /usr/bin/poweroff << "EOF"
#!/bin/sh

sudo /sbin/poweroff
EOF
5) Now change the group and permissions on these 2 scripts:
Code:
chgrp pwroff /usr/bin/poweroff
chgrp pwroff /usr/bin/reboot
chmod ug+x /usr/bin/poweroff
chmod ug+x /usr/bin/reboot
That's it, now anyone that is a member of the pwroff group can reboot & poweroff the PC without a password or without being root.
No need to setup group permission or other stuff on RH you can use shutdown account to do this http://www.cyberciti.biz/nixcraft/vi...own-linux.html
 
Old 02-13-2005, 07:40 AM   #11
johntramp
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thanks alot for that DaHammer, even if nobody else appreciates it I will definately use it.
 
  


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