[Ntop] using ntop to see flows report
Ggatten at waddell.com
Fri Sep 9 20:28:27 CEST 2011
I don't THINK the report you seek exists. First, ignore "Summary -> Network Flows". It has nothing to do with anything - see the FAQ.
Next, check to see if whatever version of ntop you're using is actually tracking flows; aka tcp/udp sessions. Select a busy host and scroll to the bottom of the report. If you don't see a bunch of active sessions, you're screwed. If they ARE there AND you have rrd configured, you MAY be able to get what you want with rrd queries, but I doubt it....
If you can tell me what problem you're trying to solve I can maybe recommend an alternative view / report. That said, ntop is TYPICALLY best at "real-time" reporting and not so good at reporting on historical stuff, especially detailed history such as flow/conversation info.
HOWEVER :) There are subsets of ntop that are exposed via Python, snmp, http, etc. - it's possible to create the reports you want - but I really don't think it's possible with shipping code.
From: ntop-bounces at listgateway.unipi.it [mailto:ntop-bounces at listgateway.unipi.it] On Behalf Of Ricky Charlet
Sent: Friday, September 09, 2011 12:44 PM
To: ntop at listgateway.unipi.it
Subject: [Ntop] using ntop to see flows report
I'm new to ntop (for about 20 hours so far). But I know my way around compiling/unixOS/networking very well.
I can't quite figure out how to find a report in ntop which shows a historic list of flows. I do have several nifty reports like Summary::Traffic, Summary::Hosts, Summary::NetworkLoad, AllProtocols::Traffic and more. But some of the reports are either missing or empty. In particular, I very much want to see a flows report (that is sort of the reason why I started experimenting with an ipfix probe/collector).
So, it turns out that bothSummary:NetworkFlows and Utils::Datadump::NetworkFlows are empty. Just judging by the name, I think those are the reports I'm interested in.
Note that I have already found my way into Pluggins::RDD::Configure and enabled DataToDump=(flows, subnets, hosts, interfaces).
I'm not sure if I'm chasing the 'right' reports and if so, if I have correct or incorrect config. Please help. For reasons beyond my control, I need a project answer here within a few hours :-(
I can post any config, log upon request.
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