PHP5连接Mysql5的认证协议问题
发表于:2007-07-01来源:作者:点击数:
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MYSQL 4.1以后, 采用了一种新的用户认证协议, 对于老的客户端会出现不支持认证协议的错误, 以下是官方网站的解决方法﹔ 1Upgrade all client programs to use a 4.1.1 or newer client library. 更新客户端库,这需要更新 PHP 的扩展库,对于老的api PHP已经
MYSQL 4.1以后, 采用了一种新的用户认证协议, 对于老的客户端会出现不支持认证协议的错误, 以下是官方网站的解决方法﹔
1Upgrade all client programs to use a 4.1.1 or newer client library.
更新客户端库,这需要更新
PHP的扩展库,对于老的api PHP已经不提供了这样的扩展库了
2When connecting to the server with a pre-4.1 client program, use an a
clearcase/" target="_blank" >ccount that still has a pre-4.1-style password.
使用以前建立的账号连接,对于在新的认证协议下建立的账户就不行了
3Reset 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;
Substitute the password you want to use for ``newpwd@#@# in the preceding examples. MySQL cannot tell you what the original password
was, so you@#ll need to pick a new one.
这是一个不错的办法,新建立的账号采用老式的加密协议
4Tell the server to use the older password hashing algorithm:
Start mysqld with the --old-passwords option.
这样新认证协议的优点就没法使用了
5Assign an old-format password to each account that has had its password updated to the longer 4.1 format. You can identify these accounts with the following query: mysql> SELECT Host, User, Password FROM mysql.user
-> WHERE LENGTH(Password) > 16;
For each account record displayed by the query, use the Host and User values and assign a password using the OLD_PASSWORD() function and either SET PASSWORD or UPDATE, as described earlier.
恢复已经升级了口令到老样式。
原文转自:http://www.ltesting.net