| For security reasons I would recommend accessing your MySQL database locally and from ONE server only. If you need to run querys by it or update it with data from another server this should be the job of an XML-RPC or SOAP type application interface, which could be written in PHP to run on a UH server.
For example, the external server wants a list of email addresses, instead of running SQL directly it will send a request via XML to a php script on the UH server, which in turn processes the SQL and returns the result via XML to the sending external server. |