AlmaLinux 9

How to Install Let's Encrypt SSL in Apache on AlmaLinux 9

To install Let's Encrypt SSL on Apache on AlmaLinux 9, follow these steps:

Step 1 : Before starting, ensure that your domain is properly configured with DNS records that point to your server. This will allow Let's Encrypt to verify your domain.

Step 2 : Update your system to make sure you have the latest security patches and packages.

sudo dnf update -y

Step 3 : Install Certbot and the Apache plugin for Certbot by running:

sudo dnf install certbot python3-certbot-apache -y

Step 4 : Restart Apache

sudo systemctl restart httpd

Step 5 : Now, create the necessary directory for your domain:

sudo mkdir -p /var/www/example.devtutorial.io

Create a simple index.html to test the server:

echo "Welcome to example.devtutorial.io" | sudo tee /var/www/example.devtutorial.io/index.html

Step 6 : Create a configuration file for your domain (replace example.devtutorial.io with your domain):

sudo nano /etc/httpd/conf.d/example.devtutorial.io.conf

Add the following configuration (adjust paths as necessary):

<VirtualHost *:80>
    ServerAdmin webmaster@devtutorial.io
    DocumentRoot /var/www/example.devtutorial.io
    ServerName example.devtutorial.io

    ErrorLog /var/log/httpd/example.devtutorial.io_error.log
    CustomLog /var/log/httpd/example.devtutorial.io_access.log combined

    <Directory /var/www/html/example.devtutorial.io>
        AllowOverride All
    </Directory>

</VirtualHost>

Step 7 : Test your Apache configuration to make sure everything is set up correctly:

sudo apachectl configtest

If everything is okay, you'll see Syntax OK. Restart Apache to apply the new configuration:

sudo systemctl restart httpd

Step 8 : To obtain an SSL certificate from Let's Encrypt, run the following command:

sudo certbot --apache -d example.devtutorial.io

- Enter your email address when prompted.

- Agree to the terms of service by typing y.

- Agree to share your email address with the Electronic Frontier Foundation (EFF) by typing y.

- You will receive a success message once the SSL certificate is installed.

Step 9 : Test the automatic renewal process by running:

sudo certbot renew --dry-run

Step 10 : Open your browser and go to https://example.devtutorial.io. You should see your site served with an HTTPS connection, and the padlock icon will indicate that the SSL certificate is active.

Congratulations! You have successfully installed Let's Encrypt SSL on Apache on AlmaLinux 9.