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Improve Apple Services with AirPort Base Stations

You can make iChat file transfers, iDisk, and Back to My Mac work better by turning on a setting with Apple AirPort base stations released starting in 2003. Launch AirPort Utility, select your base station, click Manual Setup, choose the Internet view, and click the NAT tab. Check the Enable NAT Port Mapping Protocol (NAT-PMP) box, and click Update. NAT-PMP lets your Mac OS X computer give Apple information to connect back into a network that's otherwise unreachable from the rest of the Internet. This speeds updates and makes connections work better for services run by Apple.

 

 

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Why Xerox Copiers Were Mixing Up Their Numbers

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Over at the Economist, our own Glenn Fleishman has discovered why certain Xerox copiers were mixing up numbers on copies. The culprit turns out to be the JBIG2 compression algorithm, which is not enabled by default, and copiers display a clear warning if it is enabled. JBIG2 is a form of ultra-high compression that duplicates similar-looking areas. It’s popular among businesses with extreme bandwidth requirements, such as remote oil rigs, but should not be enabled unless absolutely necessary. Xerox is working on a patch that will allow system administrators to disable the feature entirely.favicon follow link