Failed authorization procedure

Posted January 12, 2022 46 views


  • The following errors were reported by the server:

Type: unauthorized
Detail: Invalid response from
[]: “<!doctype html><html lang="en"><head><meta
content="text/html;charset=utf-8"><meta name="viewport" con”

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1 answer

Hi there,

In order to be able to validate your domain name, Let’s Encrypt wants you to have the domain name pointed to the same server IP address that you are running the command from.

For more information on how to do that you can follow the steps here:

Let me know if you have any questions!

by Brian Boucheron
Let's Encrypt is a Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, Certbot, that attempts to automate most (if not all) of the required steps. In this tutorial, you will use Certbot to obtain a free SSL certificate for Nginx on Ubuntu 20.04, and set up your certificate to renew automatically.