Updating the cert on a Synapse Matrix standalone server

As usual, logging this so I don’t lose track of it later: https://www.linode.com/community/questions/18963/certbot-error-problem-binding-to-port-80 And the original content in case it goes missing: This is a common CertBot error when using the Standalone plugin (–standalone flag) during the certificate renewal/creation process. In this case, CertBot will attempt to use port 80 to create a temporary web server. You have […]