You don't need to reinstall your whole operating system just because you forgot your Linux login. It's actually pretty easy ...

If you’re a Unix admin, it helps to know how password aging is managed and how you can determine when a password was last changed or force a change in the near future. The key to understanding how ...

If you want an example of evolution in action, look at the GNU/Linux password system. Although it includes the basic UNIX password structure as a vestigial organ, natural selection in the form of ...

Not long ago, I received an announcement about a new book on constructing good passwords. My first reaction was an incredulous “An entire book on PASSWORDS?”. I have written columns on passwords, good ...

A firmware password secures a system against unauthorized changes at the ok prompt. If you don’t have a firmware password set, anyone with access to your system’s console can modify your OpenBoot ...

You’ve got a smooth running Windows network. Now some exec decides that a Unix/Linux application has to be brought in as a business-critical platform. Not that they know it’s a Unix/Linux app, just ...

As one of the original versions of Unix, BSD is an ancient operating system. So it shouldn’t come as a surprise that it used what are, by today’s standards, strange, even ridiculous security. For one, ...