Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

 

 

Pick an apple! 
 
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.

 
 

FTP Snatching

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FTP Snatching -- In response to our FAQtoid that mentioned how spammers might capture your email address when you visit a Web page, Peter N Lewis <peter@stairways.com.au> noted a sneaky technique involving FTP:

Another way I've heard to snatch an email address when visiting a Web page is by coding an inline image with an FTP URL. The browser then automatically FTPs the file for you to show you the image - but when it anonymously FTPs the file, the browser typically uses your email address as the password (as anonymous FTP should - sending your email address is taken as a signature to abide by the usage guidelines). Thus an unscrupulous FTP server (or Web server using the anonymous FTP inline image) can capture your email address as well.

 

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