Downloaded software can be compromised in several ways. You need a software update system that handles various attacks and provides end-to-end signing of the data. TUF can help.

The Internet is a tough place to live – especially for publicly accessible computers. A small tool called Portspoof makes port scanning a real challenge for attackers.

Almost every wireless LAN has some potential security weaknesses. The Wifislax Slackware derivative helps detect and eliminate them.

Kurt provides some tips and recommends some tools to help you detect signs of network intrusion and data corruption.

Most operating systems claim to be secure; however, most fail terribly. Newcomer Qubes OS tries a different approach, relying on a microkernel and pervasive virtualization.

After several years of development work, version 2.0 of the SDL library was released in August 2013. Despite its many innovations, migrating to and getting started with SDL 2.0 is amazingly easy.

Kurt describes how to use Squid's ACLs and ICAP when you want to limit Internet access, for whatever reason.

The easy-to-use Pass offers password control at the command line. We show you how to set it up and use it.

The recent revelations about NSA spying have sparked renewed interest in data encryption. Encrypting at the file level is quick and easy, but if you're looking for an extra dose of protection, try encrypting the whole block device.