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[atlas] Is there a way to find the resolver used by the probe?
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pravicha
pravicha at masonlive.gmu.edu
Tue Jul 6 03:09:29 CEST 2021
Thank you for your response. the dest address key works for me. On Jun 28, 2021, at 10:26 PM, Cameron Steel <tugzrida at gmail.com<mailto:tugzrida at gmail.com>> wrote: To some extent, yes. In the JSON results download, the dst_addr key will provide the address that the probe sent its query to, however this will probably not be massively useful, as it’ll often be the address of a local router or other DNS cache. Finding out what resolver a given client is using at the level of "is this Cloudflare/Google/Local ISP/etc" is a little harder and requires using either an NSID query, which you can set on Atlas measurements but may not be supported by all resolvers, or a "whoami" style service like Akamai’s: https://developer.akamai.com/blog/2018/05/10/introducing-new-whoami-tool-dns-resolver-information. Hope that helps Cameron On 29 Jun 2021, at 11:12, pravicha <pravicha at masonlive.gmu.edu<mailto:pravicha at masonlive.gmu.edu>> wrote: Hello, I’ve been trying to get dns measurements for a couple of domains over different regions using atlas probes. Is there a way to find the resolver’s IP used by the probes when use_probe_resolver is set to true? Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: </ripe/mail/archives/ripe-atlas/attachments/20210706/3cdacdc5/attachment.html>
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