How to Configure SSL for Nginx on Ubuntu 23.04

To configure SSL for Nginx on Ubuntu 23.04, follow these steps:

Step 1 : Update

Begin by updating your system using the following command:

sudo apt update && sudo apt upgrade

Step 2 : Install OpenSSL

If OpenSSL is not already installed, install it using the following command:

sudo apt install openssl

Step 3 : Generate SSL

Generate SSL certificates and private key using OpenSSL. Replace 'example.devtutorial.io' with your domain:

sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/example.devtutorial.io.key -out /etc/ssl/certs/example.devtutorial.io.crt

Step 4 : Configure Nginx for SSL

Create an Nginx configuration file for your domain. Open the file in a text editor, e.g., nano:

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

Add the SSL configuration:

server {
    listen 80;
    listen [::]:80;


    server_name example.devtutorial.io;


    # Redirect HTTP to HTTPS
    return 301 https://$host$request_uri;
}


server {
    listen 443 ssl;
    listen [::]:443 ssl;


    server_name example.devtutorial.io;


    # SSL Certificate
    ssl_certificate /etc/ssl/certs/example.devtutorial.io.crt;
    ssl_certificate_key /etc/ssl/private/example.devtutorial.io.key;


    # Additional SSL settings can be added here


    root /var/www/example.devtutorial.io;
    index index.html;


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

Step 5 : Enable Nginx Configuration

Create a symbolic link to enable the Nginx configuration:

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

Step 6 : Test Configuration

Test your Nginx configuration for any syntax errors:

sudo nginx -t

Step 7 : Restart Nginx

Restart Nginx to apply the changes:

sudo systemctl restart nginx

Step 8 : Visit the Domain

Access your domain (e.g., https://example.devtutorial.io) in a web browser. Ignore any security warnings.

Congratulations! You have successfully configured SSL for Nginx on Ubuntu 23.04. Your website is now secured with SSL encryption.