Here's the thing though. I am planning a HUGE migration from
Microsoft to Linux in a K-12 school system. This includes servers
AND workstations. Now, trust me, I'm not fan of Microsoft, I
downright despise them. However, would any kid in the network get
his hand on a workstation and be able to start changing the root
password?
Not _any_ kid. He would at least have to know how to boot into single user
mode, it's not like it's entered automatically or anything.
What type of security other than with the bootloader is
there? Is there a way to turn off Single User Mode? If so, what
are the implications of doing this?
Hmmm. Probably not. However, there are only two ways of entering single
user mode, as far as I know:
1. Via the bootloader
2. Using the "init" command.
Now, to run init, you will have to be logged in as superuser, i.e. you can
do it only if you know the root password already, so if you also set a
bootloader password, you should be pretty safe. At least as far as single
user mode entry is concerned. As someone else pointed out, it is also
possible to get unrestricted access to the filesystem by booting from the
installer CD or another hard drive...
- Toralf
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