Install uif by entering the following commands in the terminal:
sudo apt update sudo apt install uif
Description:
Advanced iptables-firewall script
Complete package to create and simplify iptables packetfilter rules using perl. It was developed for a diskless router system that can store its configurations in regular files or LDAP databases.
Homepage: https://github.com/cajus/uif
Version: 1.1.8-2
Section: universe/net