Graph modem utilisation with ploticus

How to graph your modem utilisation with ploticus

This install process describes how to generate a stair-step graph of you modem usage throughout the day, with the explicit goal of answering the question:

• Do I have enough modems?

It is a bit involved. However, one you are finished you will be able to generate graphs like these, which are viewable from any web-browser (even a Manager can use it!)

File:Modem usage from syslog.recv.png File:Modem usage from syslog.send.png

Overview

The basic approach is as follows:

• Direct your hylafax log to your web-server using syslog
• Use syslog-ng or logrotate to keep log files small (weekly works well for me)
• Run the perl script modem_usage_from_syslog.pl as a CGI program on your web-server

Installation

http://ploticus.sourceforge.net