TCP/IP Network Management.Overview

Until now, we have not played with the networking capabilities of Linux. Linux is one of the best existing operating systems in the world for networking features. Most Internet sites around the world already know this, and have used it for some time. Understanding your hardware network and all files related to it is very important if you want to have a full control of what happens on your server. Good knowledge of primary networking commands is vital. Network management covers a wide variety of topics. In general, it includes gathering statistical data and status of parts of your network, and taking action as necessary to deal with failures and other changes.
The most primitive technique for network monitoring is periodic “pinging” of critical hosts. More sophisticated network monitoring requires the ability to get specific status and statistical information from various devices on the network. These should include various sorts of data gram counts, as well as counts of errors of various kinds. For these reasons, in this chapter we will try to answer fundamental questions about networking devices, files related to networking functionality, and essential networking commands.