Fix Let's Encrypt certificate renewal

Last month I received an email from Let's Encrypt stating that my certificate would have expired in 20 days. I immediately thought it was weird because I set automatic renewal in a crontab job running every night with the following command (suggested by the official guide): certbot-auto renew --quiet --no-self-upgrade --pre-hook "service nginx stop" --post-hook "service nginx start" As a consequence, 30 days before the expiration, certificate is renewed and [Read More]