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HomeDatabaseMysql Tutorial“MySQL Server Error(1251)“的解决方法_MySQL

bitsCN.com 虽然 MySQL 4.1.7 已经发布并成为官方推荐版本,但是 4.0.x 系列并没有停止更新和 bug 修复,其实现在服务器上的 MySQL 大多是 3.x 版本的,呵呵。

  在更新到 4.1.17 版本的 MySQL 后,发现需要使用 MySQLi 扩展方能正常使用数据库,否则会出现 1251 - Client does not support authentication protocol requested by server; consider upgrading MySQL client 的提示,这个很纳闷,我没有研究具体的问题,只是切换到 MySQLi 扩展,其实在给 root 加上密码前还是可以使用 MySQL 扩展的,可是给 root 加上密码后就出现了上述客户端版本太低的提示。

  目前已知解决方法:

先用root登录MYSQL服务器,执行

mysql>set password for user1@"localhost"=old_password(yourPassword);

  原因是因为你使用的mysql服务器版本中使用了新的密码验证机制,这需要客户端的版本要在4.0以上,原来的密码函数被改为old_password();,这样使用password()生成的密码在旧的版本上的客户端就不好使了,而PHP中的MYSQL客户端都是3.23的(当然,mysqli的扩展除外),问题就在这了。

  更新信息:ChangeLog

  下载:http://dev.mysql.com/downloads/mysql/4.0.html

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