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  Visualizing Network Traffic with Netflow and FlowScan
Subject:   Some errors in flowscan log
Date:   2006-11-28 05:05:18
From:   Aladar
Since Im not perl programer, I cant work out following problem.
I have installed all required stuff for network monitoring as found in the articles. The only trouble was installing Cflow.pm. Manual install from flow-tools solve that problem (although the warning Note (probably harmless): No library found for -lnsl was displayed during manual install too. Flowdumper showed some statistics in spite of the warning)
So, everything seems working fine.
But, as I promised :) there is one problem (if it is ...). My flowscan.cf contains line: Verbose 1, so that all messages goes to var/log/flowscan.log.
Here I can see following warning:
Use of uninitialized value in numeric gt (>) at /usr/local/lib/perl5/site_perl/5.8.8/HTML/Table.pm line 1684. I cant recognized importance of this message. I will be delighted if someone can help.
Here are components versions:
OS: FreeBSD 6.1
flowscan_1.006_7 (FlowScan.pm 1.6 flowscan executable 1.20)
CUflow.pm 1.66
CUGrapher.pl 1.53

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