I'm trying to connect to a mySQL database at http://bluesql.net, but when I try to connect, it gives this error:
Connect Error (2000) mysqlnd cannot connect to MySQL 4.1+ using old authentication
I've looked into this, and it has to do with some old password scheme used before MySQL 4.1. Newer versions have the option to use old passwords, which I've read may cause this problem.
I'm running php 5.3, and connecting with mySQLi (new mysqli(...)). I'm hoping I can do something in the code to connect to the DB at bluesql.net - clearly I don't control how their database is set up. Downgrading php versions isn't an option.
Anyone have any ideas?
If you do not have Administrator access to the MySQL Server configuration (i.e. you are using a hosting service), then there are 2 options to get this to work:
1) Request that the old_passwords option be set to false on the MySQL server
2) Downgrade PHP to 5.2.2 until option 1 occurs.
From what I've been able to find, the issue seems to be with how the MySQL account passwords are stored and if the 'old_passwords' setting is set to true. This causes a compatibility issue between MySQL and newer versions of PHP (5.3+) where PHP attempts to connect using a 41-character hash but the MySQL server is still storing account passwords using a 16-character hash.
This incompatibility was brought about by the changing of the hashing method used in MySQL 4.1 which allows for both short and long hash lengths (Scenario 2 on this page from the MySQL site: http://dev.mysql.com/doc/refman/5.5/en/password-hashing.html) and the inclusion of the MySQL Native Driver in PHP 5.3 (backwards compatibility issue documented on bullet 7 of this page from the PHP documentation: http://www.php.net/manual/en/migration53.incompatible.php).
Had the same issue, but executing the queries alone will not help. To fix this I did the following,
On OSX, I used MacPorts to address the same problem when connecting to my siteground database. Siteground appears to be using 5.0.77mm0.1-log, but creating a new user account didn't fix the problem. This is what did
This downgrades the mysql driver that php will use.
edit: This only applies if you are in control of the MySQL server... if you're not take a look at Mysql password hashing method old vs new
First check with the SQL query
(in the MySQL command line client, HeidiSQL or whatever front end you like) whether the server is set to use the old password schema by default. If this returns
old_passwords,Off
you just happen to have old password entries in theuser
table. The MySQL server will use the old authentication routine for these accounts. You can simply set a new password for the account and the new routine will be used.You can check which routine will be used by taking a look at the
mysql.user
table (with an account that has access to that table)This will return 16 for accounts with old passwords and 41 for accounts with new passwords (and 0 for accounts with no password at all, you might want to take care of those as well).
Either use the user management tools of the MySQL front end (if there are any) or
(replace
User
andHost
with the values you got from the previous query.) Then check the length of the password again. It should be 41 now and your client (e.g. mysqlnd) should be able to connect to the server.see also the MySQL documentation: * http://dev.mysql.com/doc/refman/5.0/en/old-client.html
* http://dev.mysql.com/doc/refman/5.0/en/password-hashing.html
* http://dev.mysql.com/doc/refman/5.0/en/set-password.html
you can do these line on your mysql query browser or something
note:your username and password
after that it should able to work. I just solved mine too
IF,
Then,
It is highly recommended that you install xampp 1.7.0 . Download Link
Note: This is not a solution to the above problem, but a FIX which would allow you to continue with your development.