libfko2 software package provides FireWall KNock OPerator - shared library, 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 libfko2
libfko2 is installed in your system.
Make ensure the libfko2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libfko2 *
You will get with libfko2 package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Libraries |
| Package | libfko2 |
| Version | 2.6.0-2.2 |
| Description | FireWall KNock OPerator - shared library |
| Sub Section | Libs |