SSH into the server
SSH into the server running your HTTP website as a user with sudo privileges.
Run these commands on the command line on the machine to install Certbot.
sudo mv certbot-auto /usr/local/bin/certbot-auto
sudo chown root /usr/local/bin/certbot-auto
sudo chmod 0755 /usr/local/bin/certbot-auto
Choose how you'd like to run Certbot
Either get and install your certificates...
Run this command to get a certificate and have Certbot edit your Apache configuration automatically to serve it, turning on HTTPS access in a single step.
sudo /usr/local/bin/certbot-auto --apache
Or, just get a certificate
If you're feeling more conservative and would like to make the changes to your Apache configuration by hand, run this command.
sudo /usr/local/bin/certbot-auto certonly --apache
Set up automatic renewal
We recommend running the following line, which will add a cron job to the default crontab.
echo "0 0,12 * * * root python -c 'import random; import time; time.sleep(random.random() * 3600)' && /usr/local/bin/certbot-auto renew -q" | sudo tee -a /etc/crontab > /dev/null
Confirm that Certbot worked
To confirm that your site is set up properly, visit https://yourwebsite.com/ in your browser and look for the lock icon in the URL bar. If you want to check that you have the top-of-the-line installation, you can head to https://www.ssllabs.com/ssltest/.