Proper DNS settings for subdomain

It’s important to note that just a CNAME might not be enough, because the Host header received will be the one with the subdomain of your site, but the discourse container will expect it to be from trydiscourse.org.

Furthermore the TLS certificate (that allows HTTPS) at trydiscourse.org expects that domain, not the one in your forum.

You may try the steps described at:

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