How to Install Let's Encrypt SSL on Nginx

Get a free SSL certificate from Let's Encrypt and configure auto-renewal on Nginx using Certbot.

Prerequisites

Root or sudo access to a Linux server, SSH access, and a domain name pointing to your server.

Step 1 — Update System

sudo apt update && sudo apt upgrade -y

Step 2 — Install Certbot

sudo apt install -y certbot python3-certbot-nginx

Step 3 — Obtain Certificate

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

Step 4 — Test Auto-Renewal

sudo certbot renew --dry-run

Step 5 — Verify SSL

Test your SSL at https://www.ssllabs.com/ssltest/ — aim for an A+ rating.

Conclusion

Your SSL certificate is now installed and will auto-renew. For complete Server Security Hardening contact our team.