Unix is a multi-user operating system deep into the kernel level of its operations. Unix-like operating systems that are commonly used in the workplace include OS X and every variety of Linux, as well ...

Unix sysadmins sometimes use the command chage -d 0 to immediately expire a user’s password. While only one of a number of ways that you can use to disable accounts, it’s one that’s quick (it doesn’t ...

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 ...

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 ...

To change a password in Linux through a Bash script, he two scripts that are most important are 'Create Users' and 'Change Passwords Shell' scripts, for the system admin which regularly uses the mail ...

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 ...