How To Install acmetool on Ubuntu 22.04

In this tutorial we learn how to install acmetool on Ubuntu 22.04. acmetool is automatic certificate acquisition tool for Lets Encrypt

Introduction

In this tutorial we learn how to install acmetool on Ubuntu 22.04.

What is acmetool

acmetool is:

acmetool is an easy-to-use command line tool for automatically acquiring TLS certificates from ACME (Automated Certificate Management Environment) servers such as Let’s Encrypt, designed to flexibly integrate into your webserver setup to enable automatic verification.

acmetool is designed to work like make: you specify what certificates you want, and acmetool obtains certificates as necessary to satisfy those requirements. If the requirements are already satisfied, acmetool doesn’t do anything when invoked. Thus, acmetool is ideally suited for use on a cron job; it will do nothing until certificates are near expiry, and then obtain new ones.

acmetool is designed to minimise the use of state and be transparent in the state that it does use. All state, including certificates, is stored in a single directory, by default /var/lib/acme. The schema for this directory is simple, comprehensible and documented.

There are three methods to install acmetool on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install acmetool Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install acmetool using apt-get by running the following command:

sudo apt-get -y install acmetool

Install acmetool Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install acmetool using apt by running the following command:

sudo apt -y install acmetool

Install acmetool Using aptitude

If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install acmetool using aptitude by running the following command:

sudo aptitude -y install acmetool

How To Uninstall acmetool on Ubuntu 22.04

To uninstall only the acmetool package we can use the following command:

sudo apt-get remove acmetool

Uninstall acmetool And Its Dependencies

To uninstall acmetool and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:

sudo apt-get -y autoremove acmetool

Remove acmetool Configurations and Data

To remove acmetool configuration and data from Ubuntu 22.04 we can use the following command:

sudo apt-get -y purge acmetool

Remove acmetool configuration, data, and all of its dependencies

We can use the following command to remove acmetool configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge acmetool

References

Summary

In this tutorial we learn how to install acmetool package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.