Linux Administration: A Beginner's Guide, Eighth Edition, 8th Edition

CHAPTER
16	Network Security

In Chapter 15, you learned that exploit vectors are of two types: those in which the vulnerability is exploitable locally and those in which the vulnerability is exploitable over a network. The latter case is covered in this chapter.

Network security addresses the problem of attackers sending malicious network traffic to your system with the intent of either making your system unavailable (denial-of-service, or DoS, attack) or exploiting weaknesses in your system to gain access or control of the system or other related systems. Network security is not a substitute for the good local security practices discussed in the previous chapter. Both local and network best security practices are necessary to keep things ...