You need to make sure that the nfsen package can read the m socket file.Ĭheck whether fprobe is working correctly or not by using tcpdump. Make sure that RRD.pm is installed correctly.Īfter some time, the graphs will be rebuilt.Īnother error you might encounter is – “ERROR: nfsend connect() error: Permission denied!” This is a permissions issue, as documented in –. For some reason, pre-built graphs could not be generated. Unable to create graph: No such file or directoryĮrror GenGraph: Profile: live, traffic-day: Legend set but no color: peer2 at libexec/NfSenRRD.pm line 337. # chmod 755 nfsen & chkconfig –add nfsen & chkconfig nfsen on Please refer to reference links for writing a daemon script. Make sure that /opt/data/nfsen directory is apache writable.i.e. Program as a standalone and capture the flows from softflowd/fprobe. So, there is no need to run nfcapd seperately as a daemon.īut, yes, if you would like to test it with tools like fprobe/softflowd, you can make use of nfcapd When you install nfsen, it will automatically configure nfcapd program as a daemon. Typical options in ‘nf’ configuration file look like: Just go through the README file of nfsen for installation and configuration instructions. # nfcapd -w -D -S 2 -B 1024000 -l /opt/nfcapd_test/ -p 9995ĭownload nfsen from SourceForge Site and install # You can check whether nfcapd can collect network data or not using configure –enable-nfprofile –enable-nftrack –enable-nfpcapd # /usr/local/sbin/fprobe -i eth0 -f”ip” -n7 127.0.0.1:9995Īnd make sure that the process is running using ‘ps aux’ command.ĭownload nfdump from SourceForge Site and install Now run fprobe using command – /usr/local/sbin/fprobe -i eth0 -f”ip” -n7 remote:port The following rpms and perl modules are required for installation and I used yum to install them:ĭownload fprobe from SourceForge Site and install The installation procedure for nfsen is described below: Nfsen( ) is amazing project that supports various netflow collectors and it allows you to investigate the netflows to your imagination!
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