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Ntop Excelente ferramenta gratís para análise de tráfego

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Excelente ferramenta gratís para análise de tráfego

What is ntop?

ntop is a network traffic probe that shows the network usage, similar to what the popular top Unix command does. ntop is based on libpcap and it has been written in a portable way in order to virtually run on every Unix platform and on Win32 as well.

ntop users can use a a web browser (e.g. netscape) to navigate through ntop (that acts as a web server) traffic information and get a dump of the network status. In the latter case, ntop can be seen as a simple RMON-like agent with an embedded web interface. The use of:

    * a web interface

    * limited configuration and administration via the web interface

    * reduced CPU and memory usage (they vary according to network size and traffic)


What ntop can do for me?

    * Sort network traffic according to many protocols

    * Show network traffic sorted according to various criteria

    * Display traffic statistics

    * Store on disk persistent traffic statistics in RRD format

    * Identify the indentity (e.g. email address) of computer users

    * Passively (i.e. withou sending probe packets) identify the host OS

    * Show IP traffic distribution among the various protocols

    * Analyse IP traffic and sort it according to the source/destination

    * Display IP Traffic Subnet matrix (who's talking to who?)

    * Report IP protocol usage sorted by protocol type

    * Act as a NetFlow/sFlow collector for flows generated by routers (e.g. Cisco and Juniper) or switches (e.g. Foundry Networks)

    * Produce RMON-like network traffic statistics



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