TAILIEUCHUNG - Networking: A Beginner’s Guide Fifth Edition- P33

Networking: A Beginner’s Guide Fifth Edition- P33:I have run into many people over the years who have gained good even impressive working knowledge of PCs, operating systems, applications, and common problems and solutions. Many of these people are wizards with desktop computers. | 142 Networking A Beginner s Guide Most networking tasks are relatively straightforward. Do you want a new file and print server You install it and set it up and it either works or it doesn t. If it doesn t work you proceed to troubleshoot it fix any issues and ultimately complete the task. Network security on the other hand is a horse of a different color. You can never really finish the project of securing a network and you can never be certain that a network is completely secure. How much money you invest in securing a network how much time you devote to the job and how much fancy security hardware and software you install doesn t matter no network is ever completely secure. Having said that network security is one of the most important jobs facing any network administrator. Good network security helps prevent the following Company secrets such as proprietary designs or processes falling into the wrong hands both internally and externally Personal information about employees falling into the wrong hands Loss of important information and software Loss of use of the network itself or any part of the network Corruption or inappropriate modification of important data These are just some of the more important losses that network security can prevent. If you spend any time thinking about all the information that is stored on and that flows through networks with which you work and you should spend time thinking about this you ll probably come up with additional dangers to avoid. This chapter provides an overview of the subject of network security. Its aim is to familiarize you with important network security ideas and concepts as well as various technologies involved in network security. If you are responsible for a network s security you should pursue more detailed information and you should also seriously consider hiring a specialist on this subject to help you secure your network. Even if you don t have primary responsibility to keep your network secure the security

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