You will need to install the client software for each SAS/access software by the sdw. You will also need to install the client software of each dbms system and configure that accordingly to other configuration settings. For Oracle and DB2 they exist at Unix. For ms - sql you have to move into a odbc approach as ms is not delivering any client for Unix. With the pcfiles server you are needing an additional windows machine as it runs only there.
Global environment var can be set at that local_env script. That is better than trying to force that at a global machine level by root.
Still having the disadvantage of possible in lunch on the metadatserver. You could also set the sas/access evironment settings at the sasapp local environment script. It is more fine grain control offering more isolation
---->-- ja karman --<-----