====== Netfilter usage ======

Nefilter configuration in my environment is managed via Ansible.  This page is a quick reference for command line usage and other tips.

===== Examples =====

<code>
# show active netfilter rules
nft list ruleset
</code>

===== Testing =====

You can easily validate your rules using nmap:

<code>
# testing DHCP service is accessible
sudo nmap --script broadcast-dhcp-discover
</code>