Server pre installation

Ubuntu

You need superuser permissions to perform installation

1. Install OS on your server;

2. Update/upgrade it's ports/packages collection:

sudo apt update

sudo apt upgrade -y

3. Install required software:

sudo apt install -y dialog ntpdate git perl cpanminus cpanoutdated postgresql libdbd-pg-perl libdatetime-perl

If you going install netflow-analyzer and/or netflow-web, you need also:

sudo apt install -y apache2 php8.1 php8.1-pgsql php8.1-snmp

4. Configure, initiate and start your local DB server:

echo "listen_addresses='*'" | sudo tee -a /etc/postgresql/14/main/postgresql.conf

echo "host netflow netflow 0.0.0.0/0 trust" | sudo tee -a /etc/postgresql/14/main/pg_hba.conf

sudo service postgresql restart

sudo -u postgres psql

ALTER USER postgres with password 'yourpassword';

exit

Note: It's better to replace 0.0.0.0/0 to your analyzer server ip in pg_hba.conf. For example "host netflow netflow 10.10.10.10/32 trust".

5. Update/Install Perl modules:

sudo cpanm App::cpanoutdated

sudo cpan-outdated -p | sudo cpanm

sudo cpanm Daemon::Daemonize

6. Synchronize your server clock with NTP time server:

sudo ntpdate <your.ntp.server.address>

7. Create user netflow and set it's password:

sudo adduser netflow

8. To be able to start collector and/or analyzer as daemon, you need to grant access rights for log and pid files:

sudo touch /var/log/netflow.log

sudo chown -R netflow:netflow /var/log/netflow.log

sudo mkdir /var/run/netflow

sudo chown -R netflow:netflow /var/run/netflow

echo "d /run/netflow 2775 netflow netflow - -" | sudo tee -a /usr/lib/tmpfiles.d/netflow-common.conf

FreeBSD

You need root permissions to perform installation

1. Install OS on your server;

2. Update/upgrade it's ports/packages collection:

pkg update

pkg upgrade

3. Install required software:

pkg install perl5 p5-App-cpanminus p5-App-cpanoutdated p5-JSON p5-DateTime p5-DBI p5-DBD-Pg postgresql13-server git

If you going install netflow-analyzer and/or netflow-web, you need also:

pkg install apache24 php81 php81-pgsql mod_php81 php81-extensions php81-snmp

4. Configure, initiate and start your local DB server:

echo postgresql_enable="YES" >> /etc/rc.conf

echo "listen_addresses = '*'" >> /var/db/postgres/data13/postgresql.conf

echo "host netflow netflow 0.0.0.0/0 trust" >> /var/db/postgres/data13/pg_hba.conf

/usr/local/etc/rc.d/postgresql initdb

/usr/local/etc/rc.d/postgresql start

Note: It's better to replace 0.0.0.0/0 to your analyzer server ip in pg_hba.conf. For example "host netflow netflow 10.10.10.10/32 trust".

5. Update/Install Perl modules:

cpanm App::cpanoutdated

cpan-outdated -p | cpanm

cpanm Daemon::Daemonize

6. Synchronize your server clock with NTP time server:

ntpdate <your.ntp.server.address>

7. Create user netflow and set it's password:

pw useradd -n netflow -d /home/netflow -m -s /bin/csh -c 'netflow user'

passwd netflow

8. To be able to start collector and/or analyzer as daemon, you need to grant access rights for log and pid files:

touch /var/log/netflow.log

chown -R netflow:netflow /var/log/netflow.log

mkdir /var/run/netflow

chown -R netflow:netflow /var/run/netflow

echo "d     /run/netflow    0755 netflow netflow - -" > /etc/tmpfiles.d/netflow.conf