perfSONAR User Q&A and Other Discussion

[Andrew Lake <>]

Hi,

perfSONAR does not have a requirement of a reverse DNS lookup, but the lookup service registration client will try one. It will still register if the reverse lookup fails (see the long list of IP addresses with no hostname in the servicesDirectory). There should be no hard requirements anywhere else and if you are seeing issues it is likely some other cause.

Thanks,

Andy

On June 27, 2019 at 1:10:47 PM, () wrote:

Hello all,

Perfsonar has a requirement of inverse lookup for ipv4 address. I would like
to know in which scenarios perfsonar is trying to use inverse lookup. If our
ip cannot do that, what problems we will be hitting? I understand it as it
relates to the auto discovery service. So if no results from inverse lookup,
our nodes cannot be discovered from "http://stats.es.net/ServicesDirectory/"?
Any other parts using inverse lookup? Appreciate your response!


Regards,
Shawn Wang,
Northwestern University
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