arpon command not found

Introduction

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

arpon: command not found

or when using sudo you get the following error message

sudo: arpon: command not found

Solutions to arpon: command not found

How To Fix arpon: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu arpon is provided by arpon package.

arpon is:

ArpON can defend a host against some ARP attacks such as ARP spoofing, ARP cache poisoning and ARP poison routing. Attackers can use these techniques to redirect traffic in local networks and execute Man in the Middle (MITM) attacks.

ArpON runs as a daemon in user space. When enabled on an interface, it disables some aspects of Address Resolution Protocol (ARP) handling by the Linux kernel and instead handles ARP messages itself and maintains the ARP neighbor cache. It has three modes of operation to support different ways of assigning IPv4 addresses in the local network: statically, dynamically using DHCP or a combination of both.

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

sudo apt-get -y install arpon

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

You can also use apt command to install arpon.

sudo apt -y install arpon

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

sudo aptitude install arpon

Summary

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