UPDATE (October 2026): the commands in step 3 and 4 below have been corrected. This guide was written in November 2016 against Ubuntu 16.04. The reverse-proxy configuration still works, but the certificate tooling was renamed shortly afterwards and the original commands will fail. apt-get install python-letsencrypt-apache → the package is now python3-certbot-apache letsencrypt –apache → … Continue reading Apache as reverse proxy for letsencrypt free https certificates