Operating systems are the source of many holes in your network's security. Microkernel architecture aims to clean them up.

Packets leaving your network can be just as damaging as the malware and spyware coming in. Learn which traffic to watch especially closely.

Underneath the unassuming exterior, best-of-breed open source software helps Astaro's security appliances police your network.

You don't have to break the bank to provide members of your mobile workforce with more security while they're on the go. Here are ten low-cost ways to harden laptops on a shoestring.

With more and more mobile workers accessing your network from outside the perimeter it's time to consider Firefox and these seven add-ons to keep them safe.

We'll get you past the daunting configuration issues so you can use OpenVPN to provide no-cost, secure networking for your Windows, Mac or Unix/Linux systems.

Part One: OpenVPN provides open source, on-the-go security for users on Windows, Mac and Linux/Unix.

Protecting data in motion is only part of the security puzzle. What about data that's sitting on a hard drive or thumb drive? TrueCrypt brings strong encryption to data at rest.

It might not have all the affordances of a commercial solution, but for road warriors and remote workers, the combination of GNU Privacy Guard and Thunderbird helps provide very secure communications.

In the third part of our look at public key encryption, we take a look at PGP's gateway products, which provide the security of PKE without the hassle for end users.

Public key cryptography provides a lot of security, but establishing trust between PKI users takes some management. Learn how trust relationships are created between PKI users.

The Yoggie Gatekeeper looks like a USB memory stick but packs an ARM-based CPU, Linux-based OS and an arsenal of security software. Is it the answer to resource-hungry security software for your mobile fleet?

Best of ENP: If you're running Windows DNS on your network, here's what you need to know to secure it against some common threats. Grab the aspirin and pull up a seat.

Forefront represents Microsoft's run on the security market. Should you give it a look, or take a pass on the first generation?

By scanning the applications found on your network's Windows systems for known vulnerabilities, Secunia's Network Software Inspector gives you one less thing to keep up with.