Traffic monitoring on SUSE 10.1/Nagios

5 pts.
Tags:
DataCenter
Development
Firewalls
Nagios
Network security
Servers
SUSE Linux Enterprise Server
I would like to monitor the bandwidth usage per IP address going through my firewall. I'm running SUSE 10.1 with Nagios installed. Anyone have an idea of how someone would go about doing that?

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You can set up flow monitoring. <a href=”http://www.ntop.org”>NTOP </a>would be a good open source choice.

It will give you monthly/daily/hourly/etc reports of all the traffic coming through it. You can see what protocols, what destinations and what source ip addresses are involved.
NTOP consists of two parts. There’s a collector and a sensor. The collector has to be on the gateway. If you’re using a cisco device, they come with nflow, open source and other sensors are usually going to be sflow. NTOP can collect both. Here’s an nflow/sflow <a href=”http://www.pmacct.net/”>sensor </a>if you don’t like ntops that works on SUSe. For different types of sensors just google (sflow|net-flow).

Hope this helps.

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