change master to master_host='192.168.21.128',master_user='osyunweidbbak',master_password='123456',master_log_file='mysql-bin.000011' ,master_log_pos=107; #执行同步语句
slave start; #开启slave同步进程
SHOW SLAVE STATUS\G #查看slave同步信息，出现以下内容
mysql> SHOW SLAVE STATUS\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.21.128
Master_User: osyunweidbbak
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000011
Read_Master_Log_Pos: 107
Relay_Log_File: mysqlslave-relay-bin.000004
Relay_Log_Pos: 253
Relay_Master_Log_File: mysql-bin.000011
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: osyunweidb
Replicate_Ignore_DB: mysql
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 107
Relay_Log_Space: 560
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
1 row in set (0.00 sec)
mysql>
注意查看：
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
以上这两个参数的值为Yes，即说明配置成功！
测试篇
测试MySQL主从服务器是否正常运行
1、进入MySQL主服务器（192.168.21.128）
mysql -u root -p #进入MySQL控制台
use osyunweidb #进入数据库
CREATE TABLE test ( id int not null primary key,name char(20) ); #创建test表
2、进入MySQL从服务器
mysql -u root -p #进入MySQL控制台
use osyunweidb #进入数据库
show tables; #查看osyunweidb表结构，会看到有一个新建的表test，表示数据库同步成功
mysql> show tables;
+----------------------+
| Tables_in_osyunweidb |
+----------------------+
| test |
+----------------------+
1 row in set (0.00 sec)
至此，Linux下MySQL数据库主从同步配置完成！