nginx - Invalid Response From /.well-known/acme-challenge while implementing SSL

Question

I have a windows machine on which Nginx is used to serve node-red. I have two node-red servers set up running on different ports. I have mapped two domains for the same IP. On one domain certbot SSL is configured and is working fine. For the second domain, Certbot is showing an error. I have added the below lines in Nginx as well -

location ~ /.well-known {
        allow all;
}

I can't seem to figure out what is missing.

question from:https://stackoverflow.com/questions/65950211/invalid-response-from-well-known-acme-challenge-while-implementing-ssl

Answer 1

You should define a dedicated folder for ACME - and make sure it has the proper file permissions:

    location /.well-known/acme-challenge/ {
        root c:documents and settingsmyUserhtml_folderacme_challenges;
    }