Windows NT Security Guide
An introduction to NT security for the desktop, network, and the Internet.
TABLE OF CONTENTS Windows NT Security Guide
Chapter 4: Developing a Secure Network Cabling System
NETWORK TOPOLOGY
Network topology is defined as the way that various nodes are interconnected. However, a bus topology refers to each node being connected in series to the next node. At either end of the bus, there needs to be a 50 ohm terminating resistor which prevents signals from reflecting back when traveling to the end of the wire.
One of the most common ways of tapping into your network is through your network cabling system. Devices can often be easily attached by anyone who has general access to your corporate facilities. These devices can compromise your security and eavesdrop on your unencrypted data transmission to each of your workstations. Therefore, by knowing more about your cable system, you can learn to protect yourself against a security breach that could compromise the integrity of your data.
COAXIAL CABLE
Coaxial cable contains two connectors that are electrically separated between a non-conducting sheath. The central portion of the wire is composed of one connector, while the other is sealed within a firm insulating material that is covered by a woven mesh tube that holds the second conductor. The whole structure is then sealed within a firm PVC of Teflon insulating sheath. The difference is that the Teflon version is required to meet certain fire regulations and can be fished through vents (see Figure 4.1).
The total size is just less than half an inch in diameter. When you talk about networking cable, it is often very difficult to install throughout an office...
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