fair software package provides high availability load balancer for TCP connections, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fair
fair is installed in your system.
Make ensure the fair package were installed using the commands given below,
$ sudo dpkg-query -l | grep fair *
You will get with fair package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Network |
| Package | fair |
| Version | 0.5.3-2 |
| Description | high availability load balancer for TCP connections |
| Sub Section | Net |