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Optimize MySQL Server Connection


I'm looking to make my site faster, and the first place I want to tackle is my MySQL server. I have no local or shell access to this server, so i'm not sure what I can do, essentially i have access via written code in PHP and phpMyAdmin.
Basically, the first thing i want to do is run a benchmark to see where the server is now, and what commands are slower then others, and the like... I found This. But it is if you run your own server.




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I am trying to connect to a server hosting a MySQL database called
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<?php

$user = "username";
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$link = mysql_connect("70.86.206.218", $user, $password);
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The string works with localhost, but not like this. It just times out
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I'm having a tough time figuring out the proper connection string to connect to my existing database.

Using:
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When executed with userid="sam" the error message that is returned is "Access denied for user: "sam@<mypc>.<corporatedomain>.com"

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phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in config.inc.php and make sure that they correspond to the information given by the administrator of the MySQL server. Code:

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PHPmyadmin :: Server Rejected The Connection
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Error

MySQL said: Documentation
#1045 - Access denied for user 'root'@'localhost' (using password: NO)

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ERROR 2013 (HY000): Lost connection to MySQL server during query

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Used server/os version
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Used Clients:
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QueryBrowser - gui client - v 1.1.20


To simplify my problem:
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More info is available on referenced posts:

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