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[IDD #RKJ-657152]: Question from SJSU Meteorology

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  • Subject: [IDD #RKJ-657152]: Question from SJSU Meteorology
  • Date: Tue, 05 Jan 2021 12:28:33 -0700
Hi Mike,

Long time no hear!

re:
> Hi there and Happy New Year,
> It's possible, that as a result of planned SJSU internal network changes,
> our external IP addresses for the following machines will change later this
> week:
> 
> vulcan.science.sjsu.edu
> titan.met.sjsu.edu
> charney.met.sjsu.edu
> 
> I'd like to confirm my hypothesis that will not impact our ability to
> receive IDD feeds from any of the machines [idd|iddb|lead].unidata.ucar.edu,
> because ldmd.conf "ALLOW" entries at Unidata are done via FQDNs and not IP
> addresses.
> 
> True?

If there is forward and reverse DNS for the machines after the IP address
changes, and if the reverse DNS results in the translation of the IP address
into a name that is in the '.edu' domain, you will continue to be ALLOWed
to REQUEST feeds from our IDD relay machines.  If, on the other hand, 
reverse DNS is _not_ setup for the machine or the IP resolves to a name
that is not in the '.edu' domain, that your feed REQUEST(s) will stop
working.

re:
> Thanks!

No worries.

I hope you are doing well in these "interesting" times!!

Cheers,

Tom
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Ticket Details
===================
Ticket ID: RKJ-657152
Department: Support IDD
Priority: Normal
Status: Closed
===================
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