https://wiki.vasexperts.ru/ 2026-04-07T07:22:03+00:00 https://wiki.vasexperts.ru/ https://wiki.vasexperts.ru/lib/exe/fetch.php?media=wiki:favicon.ico text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_config&rev=1727364583&do=diff DPI configuration Please set the following parameters in configuration file /etc/dpi/fastdpi.conf. You can find more details in option's description "Statistics collection and analysis": netflow=3 netflow_dev=eth1 netflow_timeout=60 netflow_as_direction=3 netflow_collector=192.168.0.1:9997 netflow_as_collector=192.168.0.1:9998 #Turn on UDP detection only_tcp=0 text/html 2025-08-29T09:45:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_ext&rev=1756460755&do=diff Advanced Capabilities NFSEN is enhanced with capabilities for generating graphs and reports considering autonomous system names and protocol names. * Graph generation * Report generation * IP-based report generation Graph Generation Before generating a graph, ensure that at least one day's worth of statistics has been accumulated. text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_install&rev=1727364583&do=diff Installation DPIDPI * Install the exact time service yum install ntp -y ntpdate pool.ntp.org service ntpd start chkconfig ntpd on * Add the vasexperts repository rpm --import http://vasexperts.ru/centos/RPM-GPG-KEY-vasexperts.ru rpm -Uvh http://vasexperts.ru/centos/6/x86_64/vasexperts-repo-2-1.noarch.rpm text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_requirements&rev=1727364583&do=diff Hardware requirements DPI exports statistics on traffic volumes (considering protocols and directions or autonomous systems) in a standard format netflow5. Therefore you can use any netflow collector and any tools to analyse netflow. We suggest to install text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_src&rev=1727364583&do=diff Source code In case your OS is not CentOS or the default installation does not meet your requirements, you can download and install nfdump and nfsen from the sources. * Install the packets required to build and run nfsen: CentOS/RedHat/Oracle: yum install gcc-c++,rrdtool-devel,perl-rrdtool,flex,perl-Socket6,perl-MailTools,httpd,php Ubuntu: apt-get install build-essential flex librrd-dev byacc librrds-perl libmailtools-perl libsocket6-perl apt-get install apache2 php5 libapache2-mod-php… text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_troubleshoot&rev=1727364583&do=diff Troubleshouting * When receiving a netflow flow the following problem occurs : Oct 26 10:40:00 nfsen2-vasexperts nfcapd[10681]: Ident: 'full' Flows: 9821407, Packets: 317944403, Bytes: 267615491706, Sequence Errors: 116, Bad Packets: 0\\you have checked the network, no packet loss, CPU performance is enough, flow speed limitation doesn't take effect. text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_update&rev=1727364583&do=diff Update It's essential to update the module for browsing statistics and reports in order to ensure the correct displaying of new protocols yum update nfsen nfdump and restart of collectors will be required service nfsen restart text/html 2024-09-26T15:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.vasexperts.ru/doku.php?id=en:dpi:dpi_components:utilities:oldutility:nfsen:nfsen_use&rev=1727364583&do=diff Operational manual The manual is available on site NFSEN.