Here’s an article that should be mandatory reading for any Linux sysadmin. I know what you’re thinking I would never forget my root password. OK, that may or may not be true, but there are several other instances where you might need access to the root password and not have it. This is a resource for just such an occasion. In addition to all of the above, you are also provided with pointers on making your own Linux system a little more difficult to hack. The author reminds us of the foundation principle of security.
“Physical Access is Root Access. Meaning, if you give someone physical access to a system, then you are giving them a very good chance of getting root access on your box. This is true for Windows, Linux, or any other OS out there.”