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Advanced NTOP Usage

Posted on 2009-02-18
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Last Modified: 2013-12-06
We have ntop installed on a Debian box currently.  It works great for the most part.  We just received a request last week wanted to find out what ip address was going to a specific website.  We have always used it as a bandwidth monitor, so it it's not "tanking' the network, it my not even be on the list, correct?  Also, my round robin db is setup for 72 hours, however I can never access the png graphs further than 24 hours, roughly.  How do I extend this?
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Question by:MainStaySolutions
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LVL 32

Expert Comment

by:Kamran Arshad
ID: 23673014
Hi,

You can use the NProbe;

http://www.ntop.org/nProbe.html
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Author Comment

by:MainStaySolutions
ID: 23673238
Preferably a free tool...after all this IS Linux.
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LVL 32

Expert Comment

by:Kamran Arshad
ID: 23677943
BTW why don't you setup a proxy server like Squid which will log all your FTP and Http traffic. You can apply ACLs to restrict URL access. You can also limit bandwidth on per IP basis.

www.squid-cache.org
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Author Comment

by:MainStaySolutions
ID: 23681256
Already using squid proxy on my box.  We are currenlty just using the url access restrictions to specific sites.  Thanks for the extra info.  I will look into it.  Back to ntop, it looks like nflow is built.  Will this work with out nprobe to sniff data and parse for me?
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LVL 32

Expert Comment

by:Kamran Arshad
ID: 23684302
Yes it should work with NProbe.
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Author Comment

by:MainStaySolutions
ID: 23685031
:D  Will it work WITHOUT using nprobe.
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Accepted Solution

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Kamran Arshad earned 1500 total points
ID: 23688900
Yes It can show you per-IP usage. But for deep inspection of packets you need a protocol analyzer like Wireshark.
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Author Closing Comment

by:MainStaySolutions
ID: 31548360
Thanks for the info.
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