Ubuntu Server 23.04

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

To install Let's Encrypt SSL on Nginx in Ubuntu 23.04:

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

Step 2 : Update the system:

sudo apt update
sudo apt upgrade

Step 3 : Install Certbot and Python3-certbot-nginx:

sudo apt install certbot python3-certbot-nginx

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

sudo nano /etc/nginx/sites-available/example.devtutorial.io

Add the following basic Nginx configuration:

server {
    listen 80;
    server_name example.devtutorial.io;
    root /var/www/example.devtutorial.io;

    location / {
        try_files $uri $uri/ =404;
    }
}

Save the file.

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

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

Add some content to the index.html file.

<!DOCTYPE html>
<html>
<head>
    <title>Welcome to example.devtutorial.io</title>
</head>
<body>
    <h1>Success! example.devtutorial.io.</h1>
</body>
</html>

Save the file.

Step 6 : Enable the Nginx configuration:

sudo ln -s /etc/nginx/sites-available/example.devtutorial.io /etc/nginx/sites-enabled/

Step 7 : Test the Nginx configuration:

sudo nginx -t

Step 8 : Restart Nginx:

sudo service nginx restart

Step 9 : Obtain SSL certificate:

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

- Enter your email address.

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

- Share your email address for updates if you want by typing 'y'.

- You should receive a success message.

Step 10 : Test certificate renewal:

sudo certbot renew --dry-run

Step 11 : Visit your domain to check the results.

Congratulations, you have successfully installed Let's Encrypt SSL on Nginx in Ubuntu 23.04 for your domain example.devtutorial.io. Your website is now secured with SSL.