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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
Hi Brian, re: > I followed your instructions to switch my feed but notice in the logs that > the connection is being refused by both sites. Both of the upstream sites that I recommended should ALLOW your feed REQUEST **IF** there is both forward and reverse DNS for your machine. A quick check to see if this is the case shows that it is not: % nslookup ldm.oce.usda.gov Server: 128.117.140.62 Address: 128.117.140.62#53 ** server can't find ldm.oce.usda.gov: NXDOMAIN Since the machines at NSF have been turned off, I can't check to see if we "hardwired" an ALLOW for ldm.oce.usda.gov (meaning either adding an ALLOW by IP or creating an entry in /etc/hosts that sets a hostname for your IP address). Can you check with your network folks to see if they can setup full DNS for your machine? This would open up several possibilities for upstream feed sites. re: > Sorry it took so long for me to notice this. No worries. re: > Do you have any advice? As soon as there is both forward and reverse DNS for your machine, your LDM/IDD REQUEST(s) will be honored by either idd.meteo.psu.edu or idd.tamu.edu. If, for some reason, it is not possible to have full DNS setup, we will have to work with the upstream site(s) to create a hardwired exception that will ALLOW you to REQUEST data. We do not like doing this because this "solution" is brittle. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: TSO-178323 Department: Support IDD Priority: Normal Status: Closed