Certification error for subdomain

My domain is: gpms.jp (instance 1) - (this works fine)

subdomain is : master.gpms.jp (instance 2)

I ran this command: certbot certonly --webroot -w /var/lib/redmine/public -d master.gpms.jp

It produced this output:

Failed authorization procedure. master.gpms.jp (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://master.gpms.jp/.well-known/acme-challenge/-hkcBmz31YR5neiBJZoLirQLqC_rIEkESBeG29BfSTw: "

401 Unauthorized



My web server is (include version): Apache: 2.4.6-80 (centOS)

The operating system my web server runs on is (include version): CentOS 7.5-1804

My hosting provider, if applicable, is: Conoha VPS

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

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

You have Basic Auth protecting your webroot.

This isn’t going to work, because Let’s Encrypt needs to be able to make a successful request to the /.well-known/acme-challenge/ tree within that webroot.

There’s a couple of things you can try.

Use the Apache plugin and hope it solves your problem:

certbot certonly -a apache -d master.gpms.jp


Exclude the path from your Basic Auth

Where you have

Require valid-user

add above it

Require expr %{REQUEST_URI} =~ m#^/.well-known/acme-challenge/.*#

One of those two approaches should hopefully help you.


Thank you very much, it did work. it was becasue of the basic auth.

Appriciate your help !!!

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