New tools for the web appear every day. In this issue, we round up some promising technologies, including Apache's Suexec module, the new WS-Addressing standard, the Helma application server, the Perlbal web server, and microformats.

For many admins, the security of a web application is more important than its performance. If you have a web server with multiple users, the Suexec module can help you avoid problems associated with globally writable directories.

The powerful Helma application server brings new powers to the JavaScript language. We'll show you how to use Helma to build a simple RSS reader.

Let the nimble Perlbal web server keep your traffic in balance.

Microformats are simple HTML tags that reveal information about web data. We'll show you how to take advantage of this handy technology.

You’ll find a virtualization solution for every Linux environment – from the desktop to the enterprise server. In this month's cover story, we investigate some promising virtualization tools for Linux users.

Running server systems in virtual environments is a popular approach, but the technology offers benefits to desktop users. In this article, we investigate some virtual desktop alternatives.

IBM has been in the virtualization business for decades. We’ll show you around the award-winning virtualization environment for IBM System p series servers.

Bochs, the granddaddy of all emulators, is alive and kicking; thanks to regular vitamin jabs, the lively old pretender can even handle Windows XP.

IEs4Linux lets web developers who work in Linux install Internet Explorer in just a couple of minutes to test their websites without booting Windows.

Using a headset and a webcam to make phone calls is easy, interactive, and even free, thanks to VoIP. In this month's cover story, we'll help you choose a VoIP softphone, and we'll show you how to configure your own Asterisk exchange server.

Looking for a softphone? We compare five Linux-ready VoIP clients.

If you want advanced features without the expense, try a VoIP phone system. We’ll show you how to configure your own Asterisk telephone exchange server.

Video telephony, calls to landlines, short messaging, and conferencing: the free Wengophone outpaces competitors in the VoIP field.

Save time and trouble with these expert techniques for building custom Python tools.

We’ll introduce you to Python, an easy-to-learn scripting language, and also help you get started creating your own practical Python scripts.

The trick to optimization is to save time in the right places.

The Stackless extension brings lightweight processes to Python, opening a new style of programming with dynamic heap access.

The user rules in Linux – if you know where you’re going. This month the trail leads deep into the Linux Bluetooth stack.

Is your address book open to the world? Is your mobile phone calling Russia? Many users don’t know how easy it is for an attacker to target Bluetooth.

You can even use Bluetooth as an alternative form of wireless networking. We’ll show you how.

We’ll show you how to set up support for a Bluetooth stereo headset.

Even if your printer vendor doesn’t advertise Linux Bluetooth support, there are a few tools that may help you set up your Linux system for Bluetooth printing.