使用phpmyadmin时报错：
client does not support authentication protocol requested
by server; consider upgrading mysql client
官方的说法是
mysql 4.1 and up uses an authentication protocol based on a password hashing algorithm that is incompatible with that used by older clients. .....
如果你升级mysql到4.1以上版本后遇到以上问题,请先确定你的mysql client 是4.1或者更高版本.(windows下有问题你就直接跳到下面看解决方法了,因为mysql 在windows是client和server一起装上了的)
请使用以下两种方法之一
其一:
mysql> set password for
-> 'some_user'@'some_host' = old_password('newpwd');
其二:
mysql> update mysql.user set password = old_password('newpwd')
-> where host = 'some_host' and user = 'some_user';
mysql> flush privileges;
（出处：viphot）
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