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  Monitoring Network Traffic with Netflow
Subject:   libnsl on FreeBSD
Date:   2005-09-20 05:11:36
From:   lukasz@bromirski.net
Response to: libnsl on FreeBSD

All I can say is that with the warning Michael Lucas is warning us, flowdumper won't show me nothing on three separate machines (4.x, 5.x and 6.x). With the nsl removed from Makefile it goes well and flowdumper works - I'm using it currently and plan to deploy more installations.

This is propably my error as Michael can't be wrong, but the fact is - flow-tools are real nightmare to succesfully set up and a typical case how to not write and maintain software (IMHO of course).

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  • libnsl on FreeBSD
    2005-09-20 05:25:32  agshekeloh [View]

    I can be very wrong. Extremely wrong. Utterly, thoroughly, completely wrong. It seems that the more certain I am that I'm right, the more likely that I am wrong.

    I can say that before I submitted this article, I sent it to two different people on two different networks to review and follow. It worked for them.

    Netflow setup is a complete nightmare. Perhaps it worked more smoothly back when these tools were new, I don't know. Getting cflow.pm working is the worst part by far. Flowdumper is just the simplest front end and test for cflow.pm.

    I know of people working on new flow capturing tools, but they're not ready yet. :-(