Update First Certificate Request Method

[tomas-samot]

Due to a security issue, the way the certificate is requested for the first time needs to be changed.

https://certbot.eff.org/lets-encrypt/debianjessie-apache

https://community.letsencrypt.org/t/2018-01-11-update-regarding-acme-tls-sni-and-shared-hosting-infrastructure/50188

Certbot has a fairly solid beta-quality Apache plugin, which is supported on many platforms, and automates certificate installation.

Due to a security issue, Let's Encrypt has stopped offering the mechanism that the Apache plugin previously used to prove you control a domain. You can read more about this here.

We released a new version of Certbot to work around this, but it hasn't been packaged by your OS yet. If you have to obtain a certificate and cannot wait, you have a couple of options. If you're serving files for that domain out of a directory on that server, you can run the following command:

$ sudo certbot --authenticator webroot --installer apache