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RRD (as specified in http://ee-staff.ethz.ch/~oetiker/webtools/rrdtool/) is the Acronym for Round Robin Database. RRD is a system to store and display time-series data (i.e. network bandwidth, machine-room temperature, server load average).
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Ntop is know for providing information by means of the embedded web interface. Nevertheless ntop can also be used as a network probe that reports detailed information about network traffic. By means of the remote interface it is possible to grab data out of ntop and stored in a DB or trace it. RDD is the perfect tool for storing this kind of data and drawing graphs. That's why I've done this integration.
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Here you can find some scripts that allow you to grab some data out of ntop and draw charts. These scripts are here for the purpose of demonstrating how to integrate ntop with RRD.
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How to run this demo ?
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0) Make sure you installed RRD and all the Perl modules (e.g LWP) needed to run the enclosed files.
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1) Edit the files nwUsage.pl and protoUsage.pl. Change the values relative to ntop (host & port) and the network interface to monitor (iprb0 in the example).
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2) start in background both nwUsage.pl and protoUsage.pl
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3) configure your web server (e.g. Apache) or ntop so that it can find the file 'index.html' enclosed in this directory.
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The enclosed files are for demo purpose. Please write your own scripts and send them to me so that they can be enclosed in the distribution tree.
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Luca Deri <deri@ntop.org>