How to Setup Let's Encrypt SSL Certificate with Apache on AlmaLinux 10

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Let's Encrypt is a non-profit certificate authority run by the Internet Security Research Group that provides free SSL/TLS certificates. In this guide, we will install and configure Let's Encrypt SSL on AlmaLinux 10.

Pre-requisites

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• root user access to the server.
• Apache Web server installed and running.
• You may refer to our LAMP Stack Installation on AlmaLinux 10 if it's not already installed.

Install EPEL Repository and mod_ssl

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dnf install epel-release mod_ssl -y

Install Certbot

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dnf install certbot python3-certbot-apache -y

Configure Apache Virtual Host

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Example domain: blog.domainhere.info — replace this with your actual domain name.

Create a new Apache configuration file:

nano /etc/httpd/conf.d/blog.domainhere.info.conf

Add the following configuration:

<VirtualHost *:80>
    ServerName blog.domainhere.info
    ServerAlias blog.domainhere.info
    DocumentRoot /var/www/html

    <Directory /var/www/html/>
        Options -Indexes +FollowSymLinks
        AllowOverride All
    </Directory>

    ErrorLog /var/log/httpd/blog.domainhere.info-error.log
    CustomLog /var/log/httpd/blog.domainhere.info-access.log combined
</VirtualHost>

Save and exit.

Restart Apache and Check Status

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systemctl restart httpd
systemctl status httpd

Configure Firewall

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firewall-cmd --permanent --add-service=http
firewall-cmd --permanent --add-service=https
firewall-cmd --reload

Generate Let's Encrypt SSL Certificate

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certbot --apache

Follow the on-screen instructions. Example:

Saving debug log to /var/log/letsencrypt/letsencrypt.log

Which names would you like to activate HTTPS for?
1: blog.domainhere.info

Select the appropriate number: 1
Requesting a certificate for blog.domainhere.info

Successfully received certificate.
Certificate is saved at: /etc/letsencrypt/live/blog.domainhere.info/fullchain.pem
Key is saved at:         /etc/letsencrypt/live/blog.domainhere.info/privkey.pem

Certbot will also configure your Apache SSL automatically.

Verify SSL Installation

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Open your browser and visit:

https://blog.domainhere.info

You should see a lock icon, confirming that SSL is successfully installed and HTTPS is working.

Congratulations! You have successfully installed Let's Encrypt SSL Certificate with Apache on AlmaLinux 10.