Resolved Let'Encrypt SSL not issued

[Nicola Urbinati]

Server operating system version

Ubuntu 22.04.2 LTS

Plesk version and microupdate number

Version 18.0.52 Update #3

Hi,

I'm trying to (re)issue a certificate for a domain, and LE says:

Encountered issues while issuing the certificate for www.domain.com
Details
Invalid response from https://acme-v02.api.letsencrypt.org/acme/authz-v3/242299753857.
Details:
Type: urn:ietf:params:acme:error:unauthorized
Status: 403
Detail: 2606:4700:3031::6815:3843: Invalid response from https://www.domain.com/.well-known/acme-challenge/4jDhLSxIWYvzRfOoZ1H6mj26XMWEb4A59AF-D-B9kLQ: 526

How to fix it? Is it doing ACME and not DNS challenge?

 

[Monty]

This essentially means that the IPv6 address of your domain is not pointing to the IPv6 address of your Plesk server.

The IPv6 address in your error message belongs to Cloudflare, which indicates that you are using Cloudflare (at least) for IPv6.

So you'll either have to change the IPv6 address of your domain to the IPv6 address of your Plesk server (so that both IPv4 and IPv6 addresses are pointing to your Plesk server) or you'll have to point your IPv4 address to Cloudflare too and follow the steps outlined here: https://support.plesk.com/hc/en-us/...oudflare-s-Full-Strict-encryption-with-Plesk-

 

[Nicola Urbinati]

Hi,

Gone with Cloudflare's origin cert for the moment, waiting to enable ipv6 on the server.

Thank you very much.