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LPIC-1/CompTIA Linux+™ Certification All-in-One Exam Guide by Robb Tracy

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Defending Against Network Attacks

It would be nice if we lived in a world where we could connect networks together and be able to trust others to respect our systems. Unfortunately, such a world doesn’t exist. If your Linux systems are connected to a network, then you need to be very concerned about network attacks. If your network is connected to a public network, such as the Internet, then you need to be extremely concerned about network attacks.

As with most of the topics discussed in this book, network security is a huge topic that can fill many volumes. We really don’t have time or space here to really do the topic justice. Instead, I’m going to discuss some basic things you can do to defend against network attacks. I’ll discuss the following: ...

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