It would be great if every MySQL database enjoyed perfect health 24 by 7, but unfortunately, trouble sometimes strikes. A logfile isn’t much help if you are investigating why a database is flooded with requests. Mtop to the rescue.

Worms, mail bombs, and users who send multiple megabyte Powerpoint files across the wire give Postfix administrators plenty of reasons to view their charges with a critical eye from time to time.

On vacation we may be happy just to check the position of the sun,but computers need a more accurate measure of time. Luckily, there are atomic clocks that can receive time signals by radio and off the Internet.