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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.

 
 

Mach Speed

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Mach Speed -- In a letter to developers last week, Apple's Chief Technology Officer Ellen Hancock announced that Apple has decided to use the Mach kernel as the foundation for Rhapsody, although no other details were given, including which version of Mach Apple plans to use. OpenStep is targeted at the Mach 3 kernel, whereas NeXTstep uses a variant of Mach 2.5. Presumably, Apple chose Mach in order to bring Rhapsody to market more quickly.

<http://devworld.apple.com/>

The Mach kernel was originally developed at Carnegie Mellon University, and is currently used by many environments, including IBM's AIX, Apple's MkLinux project, and Tenon Systems' MachTen Unix environment for the Mac. Though most operating systems using Mach have been based on Unix, that doesn't necessarily mean Rhapsody will have Unix at its heart. [GD]

<http://www.mklinux.apple.com/>
<http://www.tenon.com/>

 

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