[gembud] 20190820: move of idd.unidata.ucar.edu

• To: ldm-users@xxxxxxxxxxxxxxxx, conduit@xxxxxxxxxxxxxxxx, gembud@xxxxxxxxxxxxxxxx, mcidas-x@xxxxxxxxxxxxxxxx, awips2-users@xxxxxxxxxxxxxxxx, data-service-announce@xxxxxxxxxxxxxxxx
• Subject: [gembud] 20190820: move of idd.unidata.ucar.edu
• From: Unidata User Support <support@xxxxxxxxxxxxxxxx>
• Date: Tue, 20 Aug 2019 13:01:22 -0600

Sites feeding from idd.unidata.ucar.edu:

Tomorrow, Wednesday, August 21, at 20 UTC we will be switching the DNS
for our primary top level IDD relay cluster, idd.unidata.ucar.edu -
128.117.140.3, from machines housed in UCAR computing facilities in
Boulder, CO to a new, more robust cluster that is housed in the NCAR
Wyoming Supercomputing Center (NWSC) in Cheyenne, Wy. The new cluster's
IP address will be 128.117.135.3.

Important Notes:

The switching of the DNS should _not_ affect existing feeds, so sites
currently receiving feeds from idd.unidata.ucar.edu should not experience
any interruption in service.

End users may need to work with campus/organization networking staff to
adjust local firewall settings to allow for feeds from the new cluster.

After the DNS change has propagated (a process that should occur after an
hour or so, but could take as long as a week), sites will need to restart
all LDM instances that are REQUESTing IDD feeds from idd.unidata.ucar.edu
to force their systems to disconnect from the old IP address, read the
new IP address, and connect to the new cluster.

Please confirm that the DNS change has occurred by verifying that
'nslookup idd.unidata.ucar.edu' returns the new IP address, 128.117.135.3,
before restarting your LDM(s).

Please contact Unidata IDD Support (support-idd@xxxxxxxxxxxxxxxx) with
any questions/comments/concerns.

Best regards,

Unidata User Support 
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