firehol software package provides easy to use but powerful iptables stateful firewall (program), 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 firehol
firehol is installed in your system.
Make ensure the firehol package were installed using the commands given below,
$ sudo dpkg-query -l | grep firehol *
You will get with firehol package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Network |
| Package | firehol |
| Version | 2.0.3+ds-1 |
| Description | easy to use but powerful iptables stateful firewall (program) |
| Sub Section | Net |