Install certbot
sudo apt update
sudo apt install certbot python3-certbot-apache -y
SSL certificate
SSL certificate with certbot
Run Certbot for your domain
sudo certbot --apache -d example.com
Reload Apache
sudo systemctl reload apache2
Single certificate for multiple subdomains
sudo certbot --apache -d site1.example.com -d site2.example.com
Verify SSL
sudo certbot certificates
Renewal - Let’s Encrypt auto-renews certificates. Check manually:
sudo certbot renew --dry-run