Here is a list of general privileges:
This gives access to Linuxconf, but not much more. The co-administration only has access through Linuxconf to information already available using a non-privileged shell account.
Nevertheless, this privilege is needed to get in. Other privileges are needed to do anything useful.
Whenever you quit Linuxconf or use the "Activate changes" button, it probes the system and lets you activate various changes. While this privilege does not let you configure anything, it allows you to make some changes effective.
This privilege allows you to shutdown/reboot the computer using the Linuxconf control panel, or the Linuxconf --shutdown command line.
Note that this is not supported on all distributions. This allows you to operate the "Switch network mode" of the Linuxconf control panel.
Allows you to view the various logs managed by Linuxconf.
This allows you to do absolutely everything inside Linuxconf. Anyone who has this privilege "owns" the machine. This privilege was created for home user, to simplify the security model a bit.