How to Install Certbot on Ubuntu Linux

Install Certbot via Ubuntu repositories

Certbot pulls directly from Ubuntu’s official software sources using the apt package manager. Ubuntu repositories offer a reliable starting point, though the bundled version trails behind upstream releases. Open your terminal and run sudo apt install certbot to fetch the software through Ubuntu’s package manager.

If you prefer using the Ubuntu repositories, follow these steps. Keep in mind, the version installed here might not be the absolute latest.

sudo apt install certbot

Run the commands below to check the installed version or remove the package entirely.

certbot --version

To uninstall Certbot, run the commands below.

sudo apt purge certbot && sudo apt autoremove

Install Certbot via the Snap package manager

Installing Certbot with Snap on Ubuntu is a modern approach that bundles all necessary software. This makes installation and updates simpler, so you always get the latest version. To install Certbot using Snap, open your terminal and run the command: 'sudo snap install --classic certbot'.

Another method for installing Certbot is by using Snap.

Canonical's Snap (a universal package manager designed to bundle software and dependencies together) handles updates seamlessly across different Linux distributions.

To install Certbot via Snap, run the command below.

sudo snap install --classic certbot

After installing, create a symbolic link from the Certbot Snap location /snap/bin/certbot to /usr/bin/certbot. This makes running Certbot commands more convenient.

Run the command below to create that link:

sudo ln -s /snap/bin/certbot /usr/bin/certbot

Now, check the installed version.

certbot --version 

With Certbot installed, you can automatically create and renew certificates from the Let's Encrypt Certificate Authority.

First, start with a test certificate to ensure your web server configuration is correct before proceeding with an actual valid certificate.

To install a test certificate for a Nginx web server, run the command below.

sudo certbot --nginx --test-cert

Run the command below to get a valid certificate if the test succeeds.

sudo certbot --nginx

These posts should help you.

• Create a certificate using Certbot for the Apache web server
• Create a certificate using Certbot for the Nginx web server
• Create a wildcard certificate using Certbot
• Revoke and delete a certificate using Certbot

And that's how you install Certbot on Ubuntu.

Conclusion:

• Certbot is a valuable tool for automating SSL/TLS certificate management on Ubuntu Linux, providing a secure and seamless process.
• Users can choose between installing Certbot via Ubuntu repositories or the Snap package manager, allowing access to stable and more recent versions.
• After installation, users can verify the version, uninstall Certbot if necessary, and create symbolic links to streamline accessibility.
• The installation process also enables the automatic creation and renewal of certificates from the Let's Encrypt Certificate Authority, offering test and valid certificates for Nginx and Apache web servers.
• Useful resources for creating, revoking, and deleting certificates using Certbot are available for further assistance.
• Feedback and additional insights are welcome via the provided comments form.