add 2nd IP for websites

I tried to add a local IP address to serve a site as (e.g) but it doesn’t end up working.
Virtualmin let’s me specify the IP that the website runs at - and I thought this tutorial would let me create a listener to a local IP and it work:

But when I curl I get:

404 Not Found


Not Found

The resource requested could not be found on this server!

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