Tutorial request

Sue, James, and crew, a request for the wpmu.org site or for here about using tunneling between a webserver box and another box used for mysql would be a plus. The one install we have uses a 10.* address so it can;t be seen from the net but I know others use multiple vpses and I;m sure that these are open to the net. We're discussing this elsewhere today....

thanks,
-drmike