private Server() {
try {
engine = new LoginEngine(this);
engine.start();
serverAcceptor = createListener(Config.LS_IP, Config.LS_PORT,
new LSConnectionHandler(engine));
frontendAcceptor = createListener(Config.QUERY_IP,
Config.QUERY_PORT, new FConnectionHandler(engine));
} catch (IOException e) {
Server.error(e);
}