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Alter the Security Group (firewall) protecting the original servers so that they don't accept HTTP from the Internet.


With certbot 0.34.0, the procedure is simple and easy (depending on your system, substitute certbot-auto for certbot): First, list your existing certificate and domains: sudo certbot certificates This will return your certificate name and the domains currently on the certificate, for example: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...


In case the HTTPS URL triggers a 301/302 redirection to an HTTP URL, the methods described above won't work since the browser immediately redirects to a non-secure page which doesn't include the padlock button (as pointed out by Alex in the comments). In this case, it's possible to work around this problem by disabling redirections for the website: Settings ...

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