I've been *attempting* to create a multisite network on a subdomain and so far, I've configured everything according to the codex (wildcard subdomain, network install, .htaccess, using subdomains rather than subfolders) and I've triple-checked everything. However, when I try to add a new site to the network, it lists it in the sites created but I am unable to reach it or login to its dashboard. Trying to access it like x.y.foo.com gives me a Default Website Page (which gives me the impression that the wildcard subdomain is working), but trying to log in to it like x.y.foo.com/wp-admin gives me a plain 404.
...and it said that a WP multisite install REQUIRES it to be in public_html.
Does that mean that this kind of operation is not possible? Another question: does that mean that if I'm on shared hosting, I need to get another hosting account specific to the new domain so that it will be located in public_html?? (in other words: I can't just install WP Multisite on an add-on domain?)
Thanks in advance!