How To Secure Nginx with Let's Encrypt on Ubuntu 18.04

How To Secure Nginx with Let's Encrypt on Ubuntu 18.04

How To Secure Nginx with Let's Encrypt on Ubuntu 18.04

If you're running a web server with Nginx on Ubuntu 18.04, it's important to secure your website with an SSL certificate. Let's Encrypt is a free, automated, and open certificate authority that allows you to obtain SSL certificates for your website.

Step 1: Install Certbot

The first step is to install Certbot, the tool that we'll use to obtain our SSL certificate from Let's Encrypt.

sudo apt-get update
sudo apt-get install certbot python3-certbot-nginx

Step 2: Configure Nginx Server Blocks

Next, we need to configure Nginx server blocks to tell Certbot which domain names we want to obtain certificates for.

sudo nano /etc/nginx/sites-available/default

Replace the server_name line with your domain name:

server_name example.com www.example.com;

Step 3: Obtain SSL Certificate

Now we're ready to obtain our SSL certificate from Let's Encrypt using Certbot.

sudo certbot --nginx -d example.com -d www.example.com

Step 4: Verify SSL Certificate Renewal

Finally, we want to make sure that our SSL certificate will automatically renew before it expires.

sudo certbot renew --dry-run

That's it! Your Nginx web server is now secured with a Let's Encrypt SSL certificate.

Keywords: Nginx, Let's Encrypt, SSL certificate, Ubuntu 18.04, web server, security, Certbot, domain names, server blocks, automatic renewal.

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