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1. Please connect vasexperts repository:

   rpm --import http://vasexperts.ru/centos/RPM-GPG-KEY-vasexperts.ru
   rpm -Uvh http://vasexperts.ru/centos/6/x86_64/vasexperts-repo-1-0.noarch.rpm

2. Install NFSEN (Apache WEB server is installed along with NFSEN):

   yum install nfsen

3. Check that the service can be started:

   service httpd start
   service nfsen start

4. Configure the service to start automatically on power on:

   chkconfig httpd on
   chkconfig nfsen on

5. Open firewall ports to access Apache and to get netflow:

   vi /etc/sysconfig/iptables
   -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
   -A INPUT -m state --state NEW -m udp -p udp --dport 9997 -j ACCEPT
   -A INPUT -m state --state NEW -m udp -p udp --dport 9998 -j ACCEPT

6. Switch off selinux ¹⁾

   setenforce 0
   vi /etc/selinux/config
   SELINUX=disabled

7. Open the page http://hostname/nfsen/nfsen.php in your browser. Here hostname - is the name or address of nfsen server. Check that everything works fine.