(Superseded) Redirect additional domain(s) to your Discourse instance

[pacharanero (Marcus Baw)]

@pfaffman

See Set up Let’s Encrypt with multiple domains / redirects which describes how to get multiple certificates. It worked when I last updated it.

I think this topic needs to be updated.

+1 for updating the OP here to include at least a link to the additional step required in order to avoid SSL errors. Once I had this set up using @pfaffman’s link to @brahn’s excellent post it worked perfectly. Thanks to both.

In short:

1. DNS: Set up A records for all subdomains that you want to redirect, each pointing to the same IP, of the Discourse instance.
2. NGINX rules set up as per this topic, to redirect the traffic.
3. LetsEncrypt rules as per Set up Let’s Encrypt with multiple domains / redirects so that there are no SSL errors.