The consensus among new Unix and Linux users seems to be that sudo is more secure than using the root account, because it requires you type your password to perform potentially harmful actions. In reality, a compromised user account, which is no big deal normally, is instantly root in most setups.

Enforcing password security with a multiple-user system can be a hassle — users all too often use inadequate passwords. john-the-ripper (also available via most distros) is a password-cracking tool that enables the identification of vulnerable passwords before someone with nefarious intentions finds the weakness.

This is part 4 of a multi-part article. Part 1 discusses the importance of complex passwords and also discusses some ways to create them in Linux. Part 2 covers the KeepassX, a program with a very nice graphical user interface. In part 3, takes a look at the gpass program which is a nice graphical user interface for the gnome desktop (will work on others too), part 4 takes a look at the command line pwsafe. pwsafe is a unix commandline program that manages encrypted password databases.

We are very familiar with Linux and its relation with UNIX.But most us of dont actually know what are differnces between the two.
Linux is called Unix-like and is not a true Unix operating system.

Microsoft will no longer offer Linux or Unix versions of its enterprise search products after a wave of releases set to ship in the first half of this year, the company announced in an official blog post Thursday.

One of the ongoing battles I have with the folks at the Hospice I support (and my friends) is their choices of passwords. Lots just change their password by changing a number at the end (vacation1 becomes vacation2 becomes vacation3...etc.).

For the last 40 years, Unix operating systems have helped to power mission-critical IT operations around the globe. Now, as Unix enters middle age, its backers are busily developing the new specifications that they hope will carry the OS forward into the next age of computing

A beautifully constructed timeline of Unix which includes modern day Unix descendants such as Solaris and Mac OSX as well as Linux. This timeline is not very much unlike the mind map of Linux I had created a long time back. But this timeline also provides the year when the Unix/Linux flavor was born.

UNIX has hundreds if not thousands of commands, and it's impossible to remember every option and nuance. But, happily, you don't have to: man, UNIX's built-in, online reference system, is man's best friend. Take a look at this shortcut guide to the UNIX man pages system.