There are 2 repositories under iptables-rules topic.
Iptables Essentials: Common Firewall Rules and Commands.
IP leak prevention for OpenVPN
A role to manage iptables rules which doesn't suck.
EPF is Easy Port Forwarder for Ubuntu and other distros.
Tor Iptables script is an anonymizer that sets up iptables and tor to route all services and traffic including DNS through the Tor network.
Public collection of firewall dumps.
An iptables script that allows your HTTP(80)/HTTPS(443) port to receive traffic from cloudflare only
Simple protection from bots and nmap scanning
A Puppet module to manage CSF / ConfigServer Firewall.
Dynamically save and restore iptables rules for some chain(s)
UniFi - guides on CLI syntax like rsync, iptables, firewall logs, manage Protect storage. Info about Content Filter, AdBlocking and more.
Script en Python para configurar Iptables fácilmente y mantener tu servidor seguro.
Configurar Ubuntu Server 20.04 como router linux
Convert a hosts file or a list of domain into iptables.
iptables 2 nftables
A python script to hide the active ports from being discovered in a scan or even in case of the attacker using port knocking techniques
A configurable iptables firewall script meant to make firewalls easier
Supporting Files for v1 of Using IPTables Lab Exercises
Advanced iptables and ip6tables persistent firewall configurations
Sort and color output of iptables -S
CentOS server installations and configurations
Configurable rule generator to prevent traffic leaking with easy enabling and disabling
bamboo firewall, firewall, iptables, firewall distributed, host base firewall
Shell Script - Firewall with Iptables
Force only qBittorrent over VPN