mysql master/slave 不能备份，请教！！

sxwang68

这段时间在做mysql双机备份，查了网上相关资料！！但是仍然不能备份！相关配置信如下：
在mysql 目录下面已经建立logs目录
master主机：
server-id=1
log-bin=D:/mysql/logs/sync
sql-bin-update-same
binlog-do-db=ScanSealDB
slave主机：
server-id=2
master-host=200.20.7.17
master-user=dbuser
master-password=dbuser
master-port=3306
master-connect-retry=60
replicate-do-db=ScanSealDB
log-slave-updates  

当插入数据后备机没有相应增加记录
报错信息如下：
070429 14:05:29  InnoDB: Started
MySql: ready for connections.
Version: '4.0.13-nt'  socket: ''  port: 3306
070429 14:05:30  Slave I/O thread: error connecting to master 'dbuser@200.20.7.18:3306': Error: 'Can't connect to MySQL server on '200.20.7.18' (10061)'  errno: 2003  retry-time: 60  retries: 86400
070429 14:07:32  Slave I/O thread: connected to master 'dbuser@200.20.7.18:3306',  replication started in log 'sync.001' at position 79
070429 14:11:36  Slave: received 0 length packet from server, apparent master shutdown:
070429 14:11:36  Slave I/O thread: Failed reading log event, reconnecting to retry, log 'sync.001' position 79
070429 14:11:37  Slave I/O thread: error reconnecting to master 'dbuser@200.20.7.18:3306': Error: 'Can't connect to MySQL server on '200.20.7.18' (10061)'  errno: 2003  retry-time: 60  retries: 86400

哪位有相关经验的啊，指示一下：

windychan

请看这里的精华贴吧!