MS-MEMO

GRANT REPLICATION SLAVE ON *.* TO '${user}'@'${host}' IDENTIFIED BY '${password}';
FLUSH PRIVILEGES;

server-id	= ${id}
master-host=${host}
master-port=${port}
master-user=${user}
master-password=${password}
master-connect-retry=10
replicate-do-db=${database_name}

Need to config multi-master on Slave server

How???