CentOS下设置MySQL的root密码

# /etc/init.d/mysqld stop  
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &  
# mysql -u root mysql   
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';   
mysql> FLUSH PRIVILEGES;   
mysql> quit  
# /etc/init.d/mysql restart  
# mysql -uroot -p   
Enter password: <输入新设的密码newpassword>   
mysql>  

# mysql -udebian-sys-maint -p   
Enter password: <输入[client]节的密码>   
mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';   
mysql> FLUSH PRIVILEGES;   
mysql> quit  
# mysql -uroot -p   
Enter password: <输入新设的密码newpassword>   

mysql>use mysql;
mysql>update user set host = '%' where user = 'root';   --%可以改成ip或者其他
mysql>select host, user from user;