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.

Maybe you can't stop the NSA, but you can still take meaningful steps to protect your privacy.

The same way that "ease of use" usually equates to less flexibility, "convenience" is nearly always synonymous with less privacy, and YouTube nowadays is very, very convenient. If you just want to share a video, and not your personal data, or you want to avoid rude users from commenting on your kids' videos, MediaGoblin is what you need.

Worried about spies and criminals? Ubuntu Privacy Remix breaks down all the bridges to the Internet and converts the computer into an island of security. If you want to head back to civilization, you'll need a USB stick and plenty of patience.

Kurt explains how using security headers can provide extra protection from malicious content and web attacks.

OpenShift and other PaaS products can help take some of the work out of deploying and managing systems.