Archives for November, 2009

Sending data via cellular voice connections with Linux


“A5/1 [the encryption scheme used in most cellular voice calls] has operated unchanged for the last 21 years but it has now reached its cryptographic end-of-life, engulfed by the march of Moore’s Law. However, the operational end-of-life of A5/1 may still be decades away as there are approximately 2 billion GSM subscribers, commanding about 80% of [...]

Creating a local mirror of Ubuntu’s most popular packages


The problem You want to create local mirrors of the apt repositories that you use but you don’t have enough hard drive space to mirror every package. Or maybe you have a slow link and you don’t want to spend time downloading packages that you’re unlikely to need. The solution Only mirror packages whose popularity [...]

Downloading photos from Facebook with Linux


Tommy Murphy recently released photograbber, a simple Python/tkinter app that uses the Facebook API to… 1. Find all the photos that you’ve been tagged in and… 2. Download each photo to a chosen directory. It worked fine for me after I fixed a trivial tkinter bug. Right now I’m adapting photograbber to download entire albums [...]