This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
> Hello. I'm trying use some of the Satallite, Radar, and Observations data > that comes with the IDV. I've tried connecting to a bunch of the servers, > but I keep getting a "Error opening connection: java.net.ConnectException: > Operation timed out" (adde.ucar.edu, idd.unl.edu, EUMETSAT all gave me this > issue). Is there something wrong with any of these servers? I'm guessing > this issue is on my end (some port is blocked or something) but I want to > confirm that these servers are working before I complain to the network > guys. > > Thanks, > Katie > > Katie, Foe the ADDE server you need to have the permission to port 112, and THREDDS data server you need 8080 port. If you don't have the user id and password, don't try to connect to the EUMETSAT. Here is the information on the IDV FAQ site: http://www.unidata.ucar.edu/software/idv/docs/userguide/Faq.html#firewall It also has other useful information you can reference in the future. Yuan Ticket Details =================== Ticket ID: RCW-122610 Department: Support IDV Priority: Normal Status: Open