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From:Michael Stassen Date:September 17 2005 9:12pm
Subject:Re: Connection Failure
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You are trying to connect to a 4.1 server with a 4.0 client.  This is 
explained in the manual <http://dev.mysql.com/doc/mysql/en/old-client.html>.

Michael

Darrell Cormier wrote:
> I am confused as to why I am unable to connect to my MySQL DB 4.1.13 via 
> DBI:DBD in PERL.
> 
> This is on SuSE Pro 9.1, perl-5.8.3-32, perl-DBI-1.41-28, 
> perl-DBD-mysql-2.9003-22.
> 
> I am getting the following error:
> 
> DBI connect('host=localhost;database=lts','dbmgr',...) failed: Client does not 
> support authentication protocol requested by server; consider upgrading MySQL 
> client at ./lts_connect_test.pl line 25
> Can't call method "disconnect" on an undefined value at ./lts_connect_test.pl 
> line 30.
> 
> 
> I have just created the user and granted all privileges with the following 
> sequence:
> 
> 
>>mysql -u root -p
> 
> Enter password:
> Welcome to the MySQL monitor.  Commands end with ; or \g.
> Your MySQL connection id is 7 to server version: 4.1.13-Max
> 
> Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
> 
> mysql> GRANT ALL PRIVILEGES ON lts.* TO 'dbmgr'@'localhost' IDENTIFIED BY 
> 'pwd';
> 
> 
> Then I run the following code:
> ---------------------------------
> #!/usr/bin/perl -w
> 
> use DBI;		
> use strict;		
> 
> my $lts_username='dbmgr';
> my $lts_password='pwd';
> my $lts_data_source;
> my $lts_dbh;
> 
> connect_lts();
> disconnect_lts();
> sub connect_lts  {
> 	my $lts_source='DBI:mysql:host=localhost;database=lts';
> 	$lts_dbh = DBI->connect($lts_source,$lts_username,$lts_password);
> }
> 
> sub disconnect_lts  {
> 	$lts_dbh->disconnect();
> }
> ---------------------------------
> 
> And get the error listed above.  I have also created a user that has only 
> SELECT privilege and it works fine with this slight modification to the above 
> code:
> 
> my $lts_username='wmdbread';
> my $lts_password='';
> 
> 
> I have also run FLUSH PRIVILEGES; in mysql as root and it did not change 
> anything.   I have also verified that the mysql.db table shows the users with 
> the proper db and privileges.
> 
> Has anyone experienced this?  Any ideas?
> 
> Thanks,
> Darrell Cormier

Thread
Connection FailureDarrell Cormier17 Sep
  • Re: Connection FailureMichael Stassen17 Sep
    • Re: Connection FailureDarrell Cormier18 Sep