After I parked userdomain.tld to my Multi-user TC domain, I visited userdomain.tld, the browser successfully took me to this User’s blog, and userdomain.tld/xxx could also be accessed.
Is this setting (parked userdomain.tld to my Multi-user TC domain) correct?
And still have a problem now, when users login on "userdomain.tld/owner", the browser displays:
The page isn't redirecting properly
Firefox has detected that the server is redirecting the request for this address in a way that will never complete.