IT学习者首页改版发布
PHP5装ZendOptimizer不生效的原因2007/08/22 15:00
Warning: mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client in /www/xxxx/lib.php on line 31
Connect to mysql failed:
Client does not support authentication protocol requested by server; consider upgrading MySQL client
查了一下，官方的说明：
引用
MySQL 5.0 uses an authentication protocol based on a password hashing algorithm that is incompatible with that used by older (pre-4.1) clients. If you upgrade the server from 4.0, attempts to connect to it with an older client may fail with the following message:
Client does not support authentication protocol requested
by server; consider upgrading MySQL client
解决方法是：
引用
Reset the password to pre-4.1 style for each user that needs to use a pre-4.1 client program. This can be done using the SET PASSWORD statement and the OLD_PASSWORD() function:
mysql> SET PASSWORD FOR 'some_user'@'some_host' = OLD_PASSWORD('newpwd');
Alternatively, use UPDATE and FLUSH PRIVILEGES:
mysql> UPDATE mysql.user SET Password = OLD_PASSWORD('newpwd') -> WHERE Host = 'some_host' AND User = 'some_user';mysql> FLUSH PRIVILEGES;
地址：http://dev.mysql.com/doc/refman/5.0/en/old-client.html
mysql> SET PASSWORD FOR 'some_user'@'some_host' = OLD_PASSWORD('newpwd');
Alternatively, use UPDATE and FLUSH PRIVILEGES:
mysql> UPDATE mysql.user SET Password = OLD_PASSWORD('newpwd') -> WHERE Host = 'some_host' AND User = 'some_user';mysql> FLUSH PRIVILEGES;
地址：http://dev.mysql.com/doc/refman/5.0/en/old-client.html
我建数据库用户时，使用了Grant All on db.* to hx identified by 'hxpass'，这样密码是新的加密方式，解决的办法就是将密码重置为旧的(用OLD_PASSWORD加密的)密码。
中文参考资料：http://www.itlearner.com/article/2007/3759.shtml
