IPTables Rule Generator

IPTables Rule Generator is a small tool which will help you generate simple iptables rules for your Linux server. If you are looking for a more advance systax, take a look at iptables documentation.

Source Address

Source Port

Destination Address

Destination Port

Rule Order

Examples

Expression	Meaning
iptables -L	List all rules in the selected chain
iptables -t nat -n -L	List all NAT rules
iptables -L -n --line-numbers	List all rules including their line number
iptables -F	Delete existing rules
iptables -D INPUT 2	Delete the second rule in the INPUT chain
iptables -t nat -D PREROUTING 2	Delete the second rule in the NAT table
iptables -A INPUT -s "<ip address>" -j DROP	Block a specific IP address
iptables -A INPUT -p tcp --dport 80 -m limit --limit 25/minute --limit-burst 100 -j ACCEPT	Limit connections to 25 per minute on port 80, after 100 connections have been reached
iptables -N MYCHAIN	Create a new chain called "MYCHAIN"