Observing Retransmissions with Wireshark (by Tony Fortunato)
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MRTG Quickstart (by Tony Fortunato)

Good old MRTG.  This is the quickest, most flexible network polling system that I have ever played with.

This software is priceless when troubleshooting or monitoring equipment after a build.  I have run this from old laptops with only 2 GB or RAM, 1 Ghz processor and 80 GB hard drive with no issue. You can graph any numeric value via SNMP or logs.

In this video, I show you how to get this up and running in just a few steps.

Enjoy

 

 

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