Every once in a while a hosting provider has to change an IP address for a single user or even an entire server on the fly. If you’ll try do this the usual way, by changing the IP address in
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Installing Let’s Encrypt SSL Certificates on NGINX server running on Centos7
In this guide we are assuming you are running as root. If not, remember adding sudo before all commands. We will be using the domain mysite.com as an example with it’s root directory being: /home/mysite/public_html. Remember to replace it with