guessnet-ifupdown command not found

In this troubleshooting guide we learn how to fix guessnet-ifupdown command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

guessnet-ifupdown: command not found

or when using sudo you get the following error message

sudo: guessnet-ifupdown: command not found

Solutions to guessnet-ifupdown: command not found

How To Fix guessnet-ifupdown: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu guessnet-ifupdown is provided by guessnet package.

guessnet is:

Guessnet is a non-aggressive network detection tool to use when moving a machine among networks which don’t necessarily provide DHCP.

Guessnet takes in input a list of candidate network profiles, each of which includes a test description; then it runs all the tests in parallel and prints the name of the profile whose test was the first one to succeed.

Available tests are:

  • ARP probes to check for known hosts in the network
  • link beat check, to check if the interface is connected to anything
  • PPPOE check to see if there is a concentrator accessible via PPPOE
  • Checks provided by custom arbitrary scripts.

Guessnet can be used in either native mode or “ifupdown mode”. In the latter case guessnet integrates nicely with ifupdown as a “mapping script”.

To fix this problem, we can install more using the command below.

sudo apt-get -y install guessnet

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install guessnet.

sudo apt -y install guessnet

Or if you have aptitude installed you can use the following command.

sudo aptitude install guessnet

Summary

In this tutorial we learn how to fix guessnet-ifupdown command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.