I got the error:

"Server configuration denies access to data source".

when moving a jdbc app (that uses "localhost" as its host name) from Windows to Linux (Redhat 6.2).

The solution was:

1. Create a new mysql user whose host is: localhots.localdomain 2. Reload the user privileges information, for example by restarting mysql. 3. Change the java connection code along the following lines: Conn = DriverManager.getConnection( "jdbc:mysql://localhost.localdomain/my_db?user=my_new_user&password=my_new_user_password");

4. Compile and run the new code.

Mike

PS It was Mark Mathew who suggested adding localhost.localdomain to the network permissions