I have a Cloudflare Dedicated certificate cert on my parent domain (https://fearby.com) but I want to use it on a sub domain (separate Server with Nextcloud) as https://stuff.fearby.com. DNS is setup and replicated.
I tried setting up the cert on the sub domain but I get HTTP handshake error and server is down. I use NGINX and have the same config (protocols and ciphers at the parent domain). I have Always use HTTPS turned on at Cloudflare and Secure headers to force https on the parent domain.
Q1) Is there a guide for how to setup a Dedicated certificate on a parent domain and a sub domain?
Q2) Do I need to replace my Dedicated certificate with a Dedicated SSL with Custom Host name and add the parent domain sub domain (I thought *.fearby.com was enough to cover sub domains)?
Replies may be blogged to help others (https://fearby.com/all/)
Thanks In Advance