network visualization

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http://secviz.org/

SecViz | Security Visualization

Computer networks are dynamic, growing, and continually evolving.
This page is used for posting tips and tricks to use with the SiLK analysis suite . SiLK is a powerful set of composable command-line Unix applications. https://tools.netsa.cert.org/confluence/display/tt/Tooltips

Tooltips - wiki - NetSA Tools Wiki

http://raffy.ch/blog/

raffy

There are cases where you need fairly sophisticated logic to visualize data.
Renoir is a general-purpose desktop program for manipulating and visualizing networks, otherwise known as graphs.

Renoir: General Network Visualization and Manipulation Program - NSA/CSS

http://www.nsa.gov/research/tech_transfer/fact_sheets/renoir.shtml
June 7, 2010 First public release of Linux based version of FlowMatrix , (ver.0.9.82) as a Virtual Appliance is available for FREE downloads for commercial and non commercial use. The FlowMatrix Virtual Appliance is FULLY FUNCTIONAL FREE version of NetFlow based Network Anomaly Detection and NetFlow based Network Behavior Analysis tool. http://www.akmalabs.com/flowmatrix.php

FlowMatrix - NetFlow Network Anomaly Detection and NetFlow Network Behavior Analysis, NetSim - Network Delay Simulator

Sure, you’ve heard “plug-and-play” before, but we really mean it. http://www.untangle.com/

Multi-functional Firewall Software - Open Source Content Filter & Spam Filter | Untangle.com

http://www.qosient.com/argus/visualization.shtml

ARGUS- Auditing Network Activity - Visualization

There are a lot of topics to present here.
I got interested in designing visualization systems and found Tk an easy (albeit slow) interface to work with.

Chris Lee's projects

http://chrislee.dhs.org/projects/index.html