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

 

 

Pick an apple! 
 
Syslogd Overwhelming Your Computer?

If your Leopard (Mac OS X 10.5) system is unexpectedly sluggish, logging might be the culprit. Run Activity Monitor (Applications/Utilities/ folder), and click the CPU column twice to get it to show most to least activity. If syslogd is at the top of the list, there's a fix. Syslogd tracks informational messages produced by software and writes them to the asl.db, a file in your Unix /var/log/ directory. It's a known problem that syslogd can run amok. There's a fix: deleting the asl.db file.

Launch Terminal (from the same Utilities folder), and enter these commands exactly as written, entering your administrative password when prompted:

sudo launchctl stop com.apple.syslogd

sudo rm /var/log/asl.db

sudo launchctl start com.apple.syslogd

Your system should settle down to normal. For more information, follow the link.

Visit Discussion of syslogd problem at Smarticus

 
 

Radio Netting

Send Article to a Friend

We at TidBITS have a fondness for interesting ways of connecting computers together, which accounts for a number of past articles on networking with radio waves and electric lines. Now it seems that even Apple is getting in on this. The Apple Complex Systems group is working on a program called MacKDT which can perform normal telecommunications actions over a radio-frequency modem made by Motorola. Motorola already has a line of hand-held wireless terminals that use the radio-frequency modem. The Motorola terminals and the Mac will communicate with other machines over the ARDIS (Advanced Radio Data Information Service) networkthe administrators of which requested that Apple develop MacKDT.

ARDIS will supposedly go online in early April, although we have heard nothing about it since then, and will operate at 4800 bits per second (bps) at first. Later, ARDIS plans to increase speeds up to 19200 bits per second (roughly equivalent to baud). Even 19200 bps isn't that fast considering that AppleTalk runs at about 230,000 bps, but 19200 bps is comparable in speed to standard modems.

The really interesting bit is that the article claims that Apple is investigating ways of incorporating the RF modem into the Macintosh hardware, particularly that of the Mac Portable. The only drawback would be that ARDIS may be the only provider of service, though it is imaginable that they could provide a gateway to standard telephone lines.

ARDIS -- 708/913-1215
Related articles:
Macworld -- Jun-90, pg. 107

 

CrashPlan is easy, secure backup that works everywhere. Back up
to your own drives, friends, and online with unlimited storage.
With 30 days free, backing up is one resolution you can keep.
Your life is digital; back it up! <http://tid.bl.it/code42-tb>