My apologies, I now think I see your problem. I modified my version of ncdump to generate additional information. The problem is this. When ncdump is given a url such as http://webservices.ipsl.jussieu.fr/test_ferret/test_dncdump_remote.php it sends a request to the server for at least the following files: http://webservices.ipsl.jussieu.fr/test_ferret/test_dncdump_remote.php.dds and http://webservices.ipsl.jussieu.fr/test_ferret/test_dncdump_remote.php.das and if it needs the actual data, it also requests http://webservices.ipsl.jussieu.fr/test_ferret/test_dncdump_remote.php.dods This is consistent with the operation of all standard OPeNDAP servers and clients which assume the existence of three separate products: das,dds, and dods. From my debug version of ncdump, it is clear that the server is not recognizing, for example, http://webservices.ipsl.jussieu.fr/test_ferret/test_dncdump_remote.php.dds When I insert this url into a browser, I get the DDS (plus some other extraneous non-standard text at the top). What I do not understand is how the client is supposed to retrieve the DAS and the DODS information. Can you send me the corresponding urls for retrieving the DAS and DODS? =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: DOE-704686 Department: Support netCDF Priority: Normal Status: Open