升级MySQL到5.x后
使用：
GRANT ALL ON database.* TO some_user@'%' IDENTIFIED BY 'newpwd';
创建的用户。
使用旧的mysql clinet通过网络连接数据库总是提示
shell> mysql
Client does not support authentication protocol requested
by server; consider upgrading MySQL client
解决办法
mysql> SET PASSWORD FOR
-> 'some_user'@'some_host' = OLD_PASSWORD('newpwd');
or
mysql> UPDATE mysql.user SET Password = OLD_PASSWORD('newpwd')
-> WHERE Host = 'some_host' AND User = 'some_user';
mysql> FLUSH PRIVILEGES;
这样就OK了
