mysql-在配置mySQL主从复制出现问题

如题 。在配置mySQL主从复制时，

配置 从数据库时
​
mysql> change master to aster_host='192.168.16.128',master_user='tb',master_password='q123456',master_log_file='mysql-bin.,000008',master_log_pos=107;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'aster_host='192.168.16.128',master_user='mysync',master_password='q123456',maste' at line 1