How do I remove all the ufw chains from iptables?

Question

I've removed ufw and I want to get rid of all the chains it leaves behind. How can I do that easily?

Answer 1

This two liner run as root will quickly find all the names and run them through a for loop that runs iptables -F to flush references to the chain then iptables -X to delete them.

for ufw in `iptables -L |grep ufw|awk '{ print $2 }'`; do iptables -F $ufw; done
for ufw in `iptables -L |grep ufw|awk '{ print $2 }'`; do iptables -X $ufw; done