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Daniel Nashed


Troubleshooting Domino Let’s Encrypt/ACME HTTP-01 challenges

Daniel Nashed  27 September 2021 07:39:20

CertMgr ACME challenges to confirm a web-server identity require an inbound HTTP connection on port 80 on a server pointing to the DNS entry of the server requesting a new certificate.
Surprisingly this causes a lot of issues. So I added a troubleshooting document to the GitHub project -->

You can store a test challenge in certstore.nsf which can be queried with a browser, curl and other tools for troubleshooting.

The document describes the requirements in detail and provides troubleshooting tips.

In case you are running into issues with ACME HTTP-01 challenges you should take a look into this document before calling HCL support or asking your local business partner!

-- Daniel



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