Knowledge Base

How to log traffic from IPTables

You can use the following commands to log incoming traffic on IPTables.

#!/usr/bin/env bash

iptables -X; iptables -F; iptables-save; iptables -L

### Block TCP Port coming from outside and take LOG record
iptables -A INPUT -p tcp --dport 22 -j LOG --log-prefix "Port 22 Blocked"
iptables -A INPUT -p tcp --dport 22 -j DROP