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Software Installation ubuntudebian beginner

Install Certbot (Let's Encrypt)

Install Certbot for free SSL certificates

Overview

Install Certbot for free SSL certificates

Commands

This will install Certbot, continue?

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

Use Cases

Enable HTTPS for websites, automate SSL certificate renewal.

Prerequisites

Nginx is installed; domain resolved to server IP; port 80 publicly accessible.

FAQ

  • Validation failed → check DNS resolution and firewall port 80
  • Renewal failed → add a cron job certbot renew --quiet
  • Install Nginx
  • Configure UFW Firewall