APACHE2 CERTBOT Invalid response / The client lacks sufficient authorization

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:
certbot --apache

It produced this output:
Failed authorization procedure. ridelink.com (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from https://ridelink.com/.well-known/acme-challenge/GSqjEkwj-BFuB2ukpMjxV5HTjnwjXt60wBooCeb2isA []: "\n\n404 Not Found\n\n

Not Found


My web server is (include version):
Server version: Apache/2.4.25 (Debian)
Server built: 2022-02-01T18:18:01

The operating system my web server runs on is (include version):
Debian GNU/Linux 9.13 (stretch)

My hosting provider, if applicable, is:
self hosted

I can login to a root shell on my machine (yes or no, or I don't know):

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
certbot 0.28.0

You have two web servers running:

  • nginx on port 80
  • Apache httpd on port 443

This is an unusual setup.

It might be helpful to think about whether this set up is intentional and what your end goal is. Do you want to have two web servers running like this?


Since nginx is on port 80, try:
certbot certonly --nginx

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