Protect against root password change
[Log in to get rid of this advertisement]
I have recently had to force a change of the root password on a linux box I was running. It was a test system which I had not used in a while, so I forgot the root password (not so smart).
Anyway, I found that it was amazingly easy to reset the root password. Here is a straight forward article on how to do it.
http://aplawrence.com/Linux/lostlinuxpassword.html
My question is: how can you protect against this? I see this as a security hole.
I understand that the user must have physical access to the computer, but if I want to lock the system down so you cannot easily enter single user mode or the root password cannot be changed.
