[LetsEncrypt](https://letsencrypt.org/getting-started/) is an easy, free way to have X.509 (SSL) Certificates on a web server. Rather than install the certificate files manually, they provide a handy utility that will download a cert, configure Apache, and install the certificate on an ongoing basis.

1. Install Certbot.

Run this command on the command line on the machine to install Certbot.

`sudo zypper install certbot python-certbot-apache`

2. 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 certbot --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 certbot certonly --apache`

3. 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)' && certbot renew" | sudo tee -a /etc/crontab > /dev/null`

4. 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/.

In case of emergency, and the SSL cert doesn't work when pasted below:

1. SSH as root to the Web server

2. Enter: `cd /usr/share/canit/certs`

3. Enter: `rm -f canit-appliance.???`

4. Enter: `cp -a dummy-selfsigned-cert.crt canit-appliance.crt`

5. Enter: `cp -a dummy-selfsigned-cert.key canit-appliance.key`

6. Enter: `/etc/init.d/apache2 restart`