DRDA ( Distributed Relational Data Access )
If You have a DB2 instance running ,
by a few proper customization You will be able to access relational databases almost everywhere in Your network!
Naturally more investigation will be necessary for the details, but the backbone is already built inside DB2!
When I tell somebody to RTFM or STFW I usually have the page open in another tab/window of my browser,
so that I am sure that the information requested can be reached with a very small effort