The current fad in China for push-ups is not inspired by the approach of the Olympic Games; nor is it part of a campaign to improve physical fitness.

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Peer-to-peer software applications are a network administrator's nightmare.

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Depending on how you look at it, the Chinese government's attempt to rein in the Internet is crude and slapdash or ingenious and well crafted. When American technologists write about the control system, they tend to emphasize its limits.

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How to Protect Your Computer from the Internet

The Internet is a hostile place to be an undefended computer. Put a computer with a fresh install of WindowsXP on the net without patches or a firewall and it will be infected with virii and spyware within minutes without you even loading a web page.

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More than 1 million computers - possibly yours, too - are used by hackers as remote-controlled robots to crash online systems, accept spam and steal users' personal information.... The government has no way to track down all the computers, both in the U.S.

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Water pumps need firewalls too!

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With great computing power comes great responsibility. Unsecured computers hurt their owners by exposing them to identity theft and stolen passwords.

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Surf the web at work.... and other places.... and get arrested!

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