fiaif software package provides easy to use, yet complex firewall, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fiaif
fiaif is installed in your system.
Make ensure the fiaif package were installed using the commands given below,
$ sudo dpkg-query -l | grep fiaif *
You will get with fiaif package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | fiaif |
| Version | 1.23.1-4 |
| Description | easy to use, yet complex firewall |
| Sub Section | Net |