The ipw2200 device driver limited me to use only 11 channels for wireless LAN, even though I bought my notebook in Germany, where channels 1 to 13 may be used. Although other people on the net faced the same problem, nobody came up with a simple and permanent solution like writing the country code to the card’s EEPROM with just a few commands.

Netgear produced a wireless LAN router, which besides of its bad routing performance is quite a nice piece of hardware. If you want it to load a Linux Kernel via TFTP, you will have to modify its NVRAM settings. I wrote some small helper tools which can be used for that. wgt634u

Once I met Collin R. Mulliner at the university, he told me he was having fun exploring weak bluetooth stacks. I liked the idea, and some days later I bought a bluetooth dongle. It was quite a surprise to me that my phone, a Nokia 6310i, silently accepted AT modem commands on some RFCOMM channels without pairing. Later I discovered that some Ericsson phones had the same kind of vulnerability. This is the C code which I wrote while learning how to use the bluez stack and how to get data from a phone using AT commands.