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

How to manage Linux password expiry with the chage command Your email has been sent When you need to enforce password changes for users on Linux machines, the chage ...

User passwords on Linux systems can be configured to be permanent or can be set to expire so that individuals must reset them periodically. Periodic password changing is generally considered good ...

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 ...