I didn't say that. I said one local client at a time. If you're running on one server then your webserver is the one local client. Usually you want to be able

I didn't say that. I said one local client at a time. If you're running on one server then your webserver is the one local client. Usually you want to be able to run multiple webservers against a single database though, since that's the first thing you'll usually need to scale.