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You can monitor your system's Web performance quite easily with graphical Linux tools.
You'll learn how to use several in this chapter, including MRTG, which is based on SNMP and monitors raw network traffic, and Webalizer, which tracks Web site hits.
OIDs are arranged in a structure of management information (SMI) tree defined by the SNMP standard.The OID path for enterprises is, therefore, 220.127.116.11.4.1.Management Information Bases (MIBs) are text definitions of each of the OID branches.The Read/Write or "set" community string is for not only viewing statistics and system parameters but also for updating the parameters. Remember their differences, because you will need to specify the version number when doing SNMP queries.Configuring SNMP on a server isn't hard, but it does require a number of detailed steps.