We've had reports that this is another symptom of not having disabled selinux on the operating system you are setting up.
It's worth a try. There are instructions on disabling selinux at
http://webwork.maa.org/wiki/Installation_Manual_for_2.4_on_Fedora_11#Check_That_You_Have_Access_To_The_Internet_And_Continue_The_Installation
Hope this helps.
-- Mike
Installation
Remote MySQL database connection issues
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