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LinuxPlanet: Linux Networking, Part 6: Securing Your NetworkNov 08, 2000, 14:40 (0 Talkback[s])
(Other stories by William Wong)
"The only sure way to lock down a PC is to disconnect it from any network and never load a program or a document file that supports macros. That is rather impractical especially when our goal is to connect the network to the Internet."
"There are a number of avenues and methods where security of a network can be breached. Attacks from the Internet through the firewall are the ones we look at here. Other threats include computer viruses."
"Attacks from the Internet can be divided into two types. The first are ones that try to gain access to the router/firewall or the network itself. These are the ones we will concentrate on. The second type attempts to prevent the connection to the Internet from being used. These types of attacks are made from computers on the Internet and flood the firewall. There is not much the typical user can do about the second type of attack without the help of their Internet service provider and some rather technical assistance. Luckily, this type of attack will not result in the loss of information or compromise the security of the network."
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