I use cloudflare and cloudflare tunnel for public access to my jellyfin docker, but wanted to setup a local dns so my family doesn't need to remember ip and ports on our local network for docker access. I am using Nextcloud and immich as examples of dockers I want to make available locally.

 

I have the following set in PiHole:

 

and the following set in Nginx:

 

I did a nslookup in my unraid console and everything looked correct:

 

But when I navigate to http://nextcloud.unraidserver or http://immich.unraidserver it navigates to the unraid server's dashboard rather than the ports configured in nginx for each of the respective docker containers webUIs.

 

Can someone please help me figure out where I went wrong?

with all the wiped out infos in your screenshots there is no way to tell.

My GUESS is that you forgot to add the "." at the end of "unraidserver" in the CNAME entries, but, only you can check it.