Let's Encrypt not working

Hello, I am trying to create a website, but I can’t get Let’s Encrypt to work.

I am using the acme/autocert library from crypto. I also use Cloudflare for my domain and I get the SSL to work properly if I disable Cloudflare for the domain. So that the traffic goes directly to my server instead of going through Cloudflare.
But once I turn Cloudflare back on I get this error message:
2017/04/11 06:06:35 http: TLS handshake error from acme: identifier authorization failed

On Cloudflare I set the SSL to Full so that the encrypted traffic goes from the client to cloudflare and to the server, but it’s still not working.

Am I doing something wrong or doesn’t acme support cloudflare for some reason or something?

Here is my current code https://play.golang.org/p/iE4pqMTzVr

Cloudflare’s Full SSL works like this:

The connection between the visitor and Cloudflare is completely managed by Cloudflare. They deal with proper certificates, etc.

The connection between Cloudflare and your server (i.e., the origin server) is managed by you.

When you are using this setup, the ACME TLS verification will NOT work because Cloudflare is responding for the domain, not the origin server. Thus your error message.

Self-signed certificates on the origin server are sufficient for Cloudflare’s Full SSL setup. Visitors will not see the origin server’s certs, only Cloudflare’s.

1 Like

oh… So if I want to use Cloudflare, I shouldn’t use the Let’s Encrypt SSL?
And instead use their free TLS certificate?

I got it to work with Cloudflare’s free TLS :slight_smile:


This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.