Security guru Joanna Rutkowska says that Apple's and Microsoft's proprietary operating systems are "badly designed from a security standpoint"; her firm uses GNU/Linux to create Qubes OS

It is not an area of business where you'd normally think of Novell providing the infrastructure. But business and retail transaction security is becoming a burgeoning business for the company that helped create the PC network.

Buck-Security is a security scanner for Debian and Ubuntu Linux. It helps you to harden your system by running some important security checks. For example, it finds world-writable files and directories, setuid and setgid programs, superuser accounts, and installed attack tool packages.

Over the course of 11 months the base switched from using HP Superdome and Sun servers and a Windows environment which Babb (chief information technology systems architect) described as “unstable” to “the only vendor out there that had gone through National Security Agency security" which was Red Hat.

There are many new interesting alternative operating systems: Syllable, Haiku etc. They may promise speed, low system requirements and many good and promising features. But what about security? Is it discussed enough?

On the age of Internet can we even imagine a desktop operating system without a network connection? With networking comes the need for security.

Operating systems seem to have received more attention these days than they have ever before, and while there are numerous available discussion points, in relation to new versions of these operating systems, one of the biggest trends that has been fascinating to watch is how people are switching operating systems like crazy.

Two security researchers have demonstrated a new technique to stealthily intercept internet traffic on a scale previously presumed to be unavailable to anyone outside of intelligence agencies like the National Security Agency.

Over the years I have had to harden a great number of LAMP boxes, I have found some methods work for better than others. I will now share with you all my favorite 10 along with methods to implement them on Debian/Ubuntu.

Linux® has been described as one of the most secure operating systems available, but the National Security Agency (NSA) has taken Linux to the next level with the introduction of Security-Enhanced Linux (SELinux). SELinux takes the existing GNU/Linux operating system and extends it with kernel and user-space modifications to make it bullet-proof.