How To Install certbot on Debian 9
Introduction
In this tutorial we learn how to install certbot on Debian 9.
What is certbot
certbot is:
The objective of Certbot, Let’s Encrypt, and the ACME (Automated Certificate Management Environment) protocol is to make it possible to set up an HTTPS server and have it automatically obtain a browser-trusted certificate, without any human intervention. This is accomplished by running a certificate management agent on the web server.
This agent is used to:
- Automatically prove to the Let’s Encrypt CA that you control the website
- Obtain a browser-trusted certificate and set it up on your web server
- Keep track of when your certificate is going to expire, and renew it
- Help you revoke the certificate if that ever becomes necessary.
This package contains the main application, including the standalone and the manual authenticators.
There are three methods to install certbot on Debian 9. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install certbot Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install certbot using apt-get by running the following command:
sudo apt-get -y install certbot
Install certbot Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install certbot using apt by running the following command:
sudo apt -y install certbot
Install certbot 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 Debian. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install certbot using aptitude by running the following command:
sudo aptitude -y install certbot
How To Uninstall certbot on Debian 9
To uninstall only the certbot package we can use the following command:
sudo apt-get remove certbot
Uninstall certbot And Its Dependencies
To uninstall certbot and its dependencies that are no longer needed by Debian 9, we can use the command below:
sudo apt-get -y autoremove certbot
Remove certbot Configurations and Data
To remove certbot configuration and data from Debian 9 we can use the following command:
sudo apt-get -y purge certbot
Remove certbot configuration, data, and all of its dependencies
We can use the following command to remove certbot configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge certbot
Dependencies
certbot have the following dependencies:
References
Summary
In this tutorial we learn how to install certbot package on Debian 9 using different package management tools: apt, apt-get and aptitude.