title: Lock user to more that one IP
body: <p>I have account on MySQL server, which I want to lock to more than one IP. It's because I log to MySQL direct from server and another time from home with diferent IP (not 'localhost').
  <br>I need somethink like: GRANT ALL PRIVILEGES ON database.* TO 'user'@'first_ip' AND GRANT ALL PRIVILEGES ON database.* TO 'user'@'second_ip'.</p>
  
  <p>Is there any way to have it without two accounts?</p>
  
  <p>Thanks</p>