8)、修改MySQL的root用戶的密碼：
# mysql -u root mysql
mysql>use mysql;
mysql>desc user;
mysql>GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root"; //爲root添加遠程連接的能力。
mysql>update user set Password = password('xxxxxx') where User='root';
mysql>select Host,User,Password from user where User='root';
mysql>flush privileges;
mysql>exit
重新登錄：mysql -u root -p
數據庫備份
mysqldump -h ip -u root -p TestDB > TestDB.sql
mysql -hlocalhost -uroot -p123456 TestDB < TestDB.sql
show databases;
TestDB;
create database TestDB;
source TestDB.sql;
use db2
show tables;
=============================================================
server-id=1
log-bin = /usr/local/mysql/logs/sql-bin
show master status;
change master to
-> master_host='192.168.1.254',
-> master_user='repl',
-> master_password='12345',
-> master_log_file='sql-bin.000001',
-> master_log_pos=120;
start slave;
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