fastforward command not found

Introduction

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

fastforward: command not found

or when using sudo you get the following error message

sudo: fastforward: command not found

Solutions to fastforward: command not found

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

In Ubuntu fastforward is provided by fastforward package.

fastforward is:

It can create forwarding databases from a sendmail-style /etc/aliases or from user-oriented virtual-domain tables.

fastforward supports external mailing lists, stored in a binary format for fast access. It has a tool to convert sendmail-style include files into binary lists.

fastforward is more reliable than sendmail. sendmail can’t deal with long aliases, or deeply nested aliases, or deeply nested include files; fastforward has no limits other than memory. sendmail can produce corrupted alias files if the system crashes; fastforward is crashproof.

fastforward’s database-building tools are much faster than sendmail’s newaliases. Even better, fastforward deliveries don’t pause while the database is being rebuilt.

fastforward does not support insecure sendmail-style program deliveries from include files; you can use qmail’s secure built-in mechanisms instead. fastforward does support program deliveries from /etc/aliases.

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

sudo apt-get -y install fastforward

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

You can also use apt command to install fastforward.

sudo apt -y install fastforward

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

sudo aptitude install fastforward

Summary

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