Network Flow Analysis

Blaming the network is easy. It’s traditional. And it’s (usually) wrong.

Servers have log files, performance monitors, and other tools to assess and record system and application behavior. Traditional network devices have one LED on each port, and if you’re lucky the LED blinks when somehing happens. Maybe you have tools to tell you how busy an interface is, but generally a network device is an unreadable black box. Network Flow Analysis opens the black box, demonstrating how to use the freely-available flow-tools software and the capabilities of your existing hardware to assess, analyze, and debug your network.

Author Web Site Discount: Order now! Use coupon code ILUVMICHAEL for a 30% discount! (Books will be shipped directly from No Starch Prss) Or order from Amazon in print or for Kindle.

Get a preview! Read Chapter 4.

A network administrator’s abilities are as good as his awareness of his network. Flow analysis is the industry-standard method of collecting and recording network traffic. Flow analysis lets you see what types of traffic passed between hosts, without having to reproduce the problem.

Flow export and analysis transforms network administration from a stomach-churning mix of guesswork, issue reproduction, and head-scratching to a fact-based science that lets you focus on resolving problems at their source.

Network administrators: When a problem is yours, own it. When a problem isn’t yours, prove it.

  • Stop asking your users to reproduce problems
  • Leverage the capabilities of your existing hardware
  • Identify network, server, router, and firewall problems before they become critical
  • Find defective and misconfigured software
  • Has anyone accessed that old server in the last day, month, or year? Find out.
  • Quickly find virus-spewing machines — even on a global network, even when the culprit is on a different continent
  • Is it a network problem, or is it a server problem that looks like a network problem?
  • Automatically produce graphs suited for your environment, and provide friendly Web-based interfaces to your customers

    Absence of evidence is not evidence of absence. Get the evidence. Read Network Flow Analysis today.

    Get the book today!


  • Amazon US,Amazon UK,
  • Kobo


  • Amazon US, Amazon UK,