Chapter 20: Using Nginx Proxy Manager with a Network Load Balancer

If you’re behind a Network Load Balancer (NLB) and want to manage SSL certificates and reverse proxying with ease, Nginx Proxy Manager (NPM) is a powerful web-based tool that simplifies the process. In this chapter, you’ll learn how to:

1. Upload your SSL certificate manually.
2. Set up a Proxy Host for your website.

Step 1: Add the SSL Certificate (Custom)

1. Access Nginx Proxy Manager in your browser.
   Example: http://<your-npm-ip>:81
2. Log in with your admin credentials.
3. Go to SSL Certificates tab.
4. Click "Add SSL Certificate" → Select "Custom".
5. Fill in the fields:
   • Name: Something descriptive like hexacats.cloud
   • Certificate Key: Paste the contents of
     /etc/letsencrypt/live/hexacats.cloud/privkey.pem
   • Certificate: Paste the contents of
     /etc/letsencrypt/live/hexacats.cloud/fullchain.pem
6. Click Save.

This step allows NPM to use your own Let's Encrypt certificates securely.