For each user, the following parameters are available :

Username
  For this field, you may either enter a specific username, or choose the `Anonymous user` option in which case the permissions will apply to any user who is not in the `User Permissions` list.

Password
  The password required by this user when logging in. If `None`, then no password is needed.

Hosts
  The IP address or hostname of the host this user is allowed to login from. This field can also contain an SQL regular expression matching multiple hosts, like `192.168.1.%` or `%.foo.com`.

Permissions
  The MySQL operations this user is allowed to perform on any database.