[root@localhost ~]mysql -uroot -p
mysql>use mysql
mysql>grant replication slave on *.* to 'testuser'@'192.168.1.102' identified by '12345678';
mysql>flush privileges #刷新权限

server-id=1 
log-bin=mysql-bin #启动MySQL二进制日志系统，
binlog-do-db=ourneeddb #需要同步的数据库
binlog-ignore-db=mysql #不同步mysql系统数据库，若还有其它不想同步的，继续添加
[root@localhost ~]/etc/init.d/mysqld restart #重启服务

mysql> show master status;
+------------------+----------+--------------+------------------+
| File      | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000012 |   120 | ourneeddb| mysql      |
+------------------+----------+--------------+------------------+

[root@localhost~ ]mysql -uroot -p
mysql>use mysql 
mysql>stop slave;
mysql>change master to
   master_host='192.168.1.101',
   master_user='testuser',
   master_password='12345678',
   master_log_file='mysql-bin.000012',
   master_log_pos=120; #log_file与log_pos是主服务器master状态下的File与Position
mysql>start slave;
mysql>show slave status\G;

*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.101
Master_User: testuser
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000012
Read_Master_Log_Pos: 120
Relay_Log_File: orange-2-relay-bin.000003
Relay_Log_Pos: 283
Relay_Master_Log_File: mysql-bin.000012
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: orange
Replicate_Ignore_DB: mysql,test,information_schema,performance_schema
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: 120
Relay_Log_Space: 1320
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
Master_UUID: 773d2987-6821-11e6-b9e0-00163f0004f9
Master_Info_File: /home/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0