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root default assignment in /etc/group

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tekknokrat
Apprentice

Joined: 17 Apr 2005
Posts: 278
Location: Magdeburg

Posted: Thu Jun 10, 2010 9:49 am Post subject: root default assignment in /etc/group

Hi,

when I compare the /etc/group file of gentoo with the one of Ubuntu I stumble about the fact that root is assigned by default to several groups:

Code:

root::0:root
bin::1:root,bin,daemon
daemon::2:root,bin,daemon
sys::3:root,bin,adm
adm::4:root,adm,daemon
disk::6:root,adm
wheel::10:root
floppy::11:root
dialout::20:root
tape::26:root
video::27:root

Is there are deep reason behind that apart of keeping that file consistent? What me concerns is especially the wheel group. Why is it necessary to put root in wheel. I mean when do I need to perform "su -" when I am already root? Just curious...
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