Features

An Amateur Radio Survival Guide for Linux users  by Dan Smith

A getting-started guide for Linux users looking to venture into the world of Amateur Radio.

Xastir—Open-Source Client for the Automatic Packet Reporting System  by Curt E. Mills, Steve Stroh and Laura Shaffer Mills

Plotting Mars Rover locations on a detailed map, easily done with Linux? You bet!

Rolling Your Own with Digital Amateur Radio  by Gary L. Robinson

Amateur Radio and open source—a heavenly match.

Indepth

What's New in Firewall Builder 3.0  by Vadim Kurland

Get GUIed and forget about iptables and its brethren.

Implement Port-Knocking Security with knockd  by Federico Kereki

They can't get in if they can't find the door.

Simple Virtual Appliances with Linux and Xen  by Matthew Hoskins

Appliances, not just in the kitchen anymore.

Columns

Reuven M. Lerner's At the Forge   Cucumber  

Dave Taylor's Work the Shell   Listening to Your Twitter Stream  

Mick Bauer's Paranoid Penguin   Linux Security Challenges 2010  

Kyle Rankin's Hack and /   Dr hjkl Meets the Vimperator  

Dirk Elmendorf's Economy Size Geek   Who Goes There? Adventures in Amateur Security  

Kyle Rankin and Bill Childers' Point/Counterpoint   Education vs. Experience  

Doc Searls' EOF   Now Data Gets Personal  

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