FreePPP 2.5v3 Patcher -- Steve Dagley and the FreePPP Group have released a 36K patcher program that updates the FreePPP 2.5v2 extension to 2.5v3. It fixes a nasty bug that has long been lurking in the original MacPPP code. In situations of heavy load, this bug could cause FreePPP to crash or hang. If you use FreePPP 2.5v2, you should update your copy. [ACE]
Smarter Parental Controls
If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.
To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.