How To Install Certbot on AlmaLinux 8

Install Certbot on AlmaLinux 8

In this tutorial, we will show you how to install Certbot on AlmaLinux 8. For those of you who didn’t know, Certbot is a client that fetches the SSL certificate from the Let’s Encrypt authority and automates its installation and configuration. This eliminates the pain and hustle of accomplishing the entire process manually.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you through the step-by-step installation of Certbot on an AlmaLinux 8. You can follow the same instructions for CentOS and Rocky Linux.

Install Certbot on AlmaLinux 8

Step 1. First, let’s start by ensuring your system is up-to-date.

sudo dnf update
sudo dnf install epel-release

Step 2. Installing Certbot on AlmaLinux 8.

  • Install Certbot for Apache.

Run the following command below to install Certbot for Apache:

sudodnf installcertbot python3-certbot-apache mod_ssl
  • Install Certbot for Nginx.

Run the following command below to install Certbot for Nginx:

sudodnf installcertbot python3-certbot-nginx

To verify the Certbot installation run:

certbot --version

Step 3. Installing an SSL Certificate on AlmaLinux.

Once successfully installed, use Certbot to get the SSL certificate. Specify --apache or --nginx depending on your web server. Other options are also available, but these are the two most common. We’ll use Apache in this example:

sudo certbot --apache

During installation, This will generate a set of prompts that you will need to answer. If all goes well, you should receive the following message:

Requesting a certificate for yourdomain.com
Performing the following challenges:
http-01 challenge for your-domain.com
Waiting for verification...
Cleaning up challenges
Subscribe to the EFF mailing list (email: [email protected]).

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/your-domain.com/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/your-domain.com/privkey.pem
   Your certificate will expire on 2021-08-25. To obtain a new or
   tweaked version of this certificate in the future, simply run
   certbot again. To non-interactively renew *all* of your
   certificates, run "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

Step 4. Configure Firewall.

Now add firewall rules to allow connections as well as HTTP (port 80) and HTTPS (port 443) traffic:

sudo firewall-cmd --permanent --add-port=80/tcp --zone=public
sudo firewall-cmd --permanent --add-port=443/tcp --zone=public
sudo firewall-cmd --reload

Congratulations! You have successfully installed Certbot. Thanks for using this tutorial for installing Certbot on your AlmaLinux 8 system. For additional help or useful information, we recommend you check the official Certbot website.

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