[Vince]

Set up a separate account for the SA-MP server. Don't use root. Not even for testing. Root is reserved for administrative tasks. Also you will need a password regardless of which user is used otherwise the plugin simply won't work. Doesn't matter if it's something simple like '123' or 'admin' or 'password' because it's only for testing and it's easy to remember. Goes without saying that you choose a strong password when you put it into production.

http://www.random.org/passwords/