Ubuntu Server 23.04

How to Install Let's Encrypt SSL in Apache on Ubuntu 23.04

To install Let's Encrypt SSL on Apache in Ubuntu 23.04, follow these steps:

Step 1 : Ensure the domain is DNS configured for verification.

Step 2 : Update your system:

sudo apt update
sudo apt upgrade

Step 3 : Install Certbot and Python3-Certbot-Apache:

sudo apt install certbot python3-certbot-apache

Step 4 : Create a configuration file for your domain (e.g., example.devtutorial.io) and add the necessary configurations:

sudo nano /etc/apache2/sites-available/example.devtutorial.io.conf

Add the following content, adjusting paths and configurations accordingly:

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

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Step 5 : Create the directory for your domain and an index.html file:

sudo mkdir -p /var/www/example.devtutorial.io/public_html
sudo nano /var/www/example.devtutorial.io/public_html/index.html

Add some content to index.html and save the file.

Step 6 : Enable the site configuration:

sudo a2ensite example.devtutorial.io.conf

Step 7 : Test the Apache configuration for syntax errors:

sudo apache2ctl configtest

Step 8 : Restart Apache to apply changes:

sudo systemctl restart apache2

Step 9 : Run the Certbot command to obtain the SSL certificate for your domain:

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

- The Certbot tool will prompt you to enter your email address for renewal and security notices. Type your email address and press Enter.

- Agree to the terms of service by typing 'y' and pressing Enter.

- Certbot will ask if you want to share your email address with the Electronic Frontier Foundation (EFF). Choose 'y' or 'n' based on your preference.

- Certbot will then communicate with the Let's Encrypt server, perform the necessary validation, and automatically configure Apache with the obtained SSL certificate.

- Once the process completes successfully, Certbot will display a message confirming the SSL installation.

Step 10 : Test certificate renewal:

sudo certbot renew --dry-run

Step 11 : Visit your domain to verify the results.

Congratulations! You have successfully installed Let's Encrypt SSL on Apache in Ubuntu 23.04 for your domain example.devtutorial.io.