Colophon
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The image on the cover of Securing Windows NT/2000 Servers for the Internet is of a Roman ship shelter. The ancient Romans are known for making many contributions to modern society-one of the foremost being architecture. Using complex techniques, they constructed many of the world’s most famous buildings, such as the Pantheon and the Coliseum.
The Romans based their architectural style on three main structural elements: the arch, the vault, and the dome. The arch, which is comprised of single pieces (for example, blocks of concrete) raised together in an upward arc, was most often used for entrances, windows, and the like. It eventually became extremely important to building design, but by the 1800s, it had taken on a more decorative value, due to the rise of industry and the heightened inclusion of steel beams for framework support. A vault is basically a curved ceiling over a room. However, the Romans were able to form a sophisticated system, building perfectly immobile vaults that did not need buttresses for support. This enabled them to use vaults over large spaces. A dome is a circular roof that is situated over a square or circular area. The Romans were the originators of this configuration, which is now seen widely throughout ...
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