Investigating the Leopard firewall


Our friend [Rich Mogull] has been flipping the switches on Leopard’s new firewall and scanning it to see what’s actually going on. There is some good and some bad. The new application signing is a mixed bag. It breaks Skype and a commenter pointed out that automatically trusting Apple installed apps like NetCat isn’t a good idea either. You can roll your own firewall using user friendly tools like WaterRoof since ipfw is still included.

DIY Servo motor controller


[Jim Fong] sent in this demo of his version of the UHU servo motor controller. [Uli Huber] has actually shipped over 2500 controllers for the servo. He doesn’t charge much for the chips, and only asks for something like a token beer in return for his work. I used [Jim]s boards in my mini mill controller, so I know he does good work. This servo controller really is a big deal. It can handle high power, and servo motors are *the* way to build a fast milling/robotics setup.

If you’re into Cons, you might be interested that the first round of Shmoocon tickets went up for sale today – looks like they’re already out, so keep your eyes open if you want to go. It’s a decent con that takes place in DC. I know that I’m planning to be there.

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