IPTables rules for nprobe

First of all, let’s look at the current IPTables rules:

iptables -nvL

In order for nprobe to accept NetFlow data, open the port for it:

sudo iptables -A INPUT -p udp --dport 2055 -j ACCEPT

In order for nprobe to accept NetFlow data only from a particular network or IP:

sudo iptables -A INPUT -s 10.0.0.0/24 -p udp --dport 2055 -j ACCEPT

See also my articles:
Configuring IPTables
Install and configure nprobe

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