So, appears cambiumnetworks.com uses cloudflare for DNS alone. Cloudflare goes inaccessible, bye bye cambiumnetworks.com and I assume cnheat.
sas.cbrs.cambiumnetworks.com is the URL for the cnmaestro SAS URL. cloudflare DNS tell us to go ask AWS DNS for how to resolve *.cbrs.cambiumnetworks.com, but cloudflare tell us to only cache these NS records for 5 min.. so there’s our problem. 5 min of cloudflare being unresponsive and we’re toast for valid cnmaestro SAS URL resolution. > On Jul 17, 2020, at 4:59 PM, castarritt <castarr...@gmail.com> wrote: > > cnHeat was broken too. > > On Fri, Jul 17, 2020 at 5:34 PM Ken Hohhof <af...@kwisp.com > <mailto:af...@kwisp.com>> wrote: > I think it was actually cnMaestro that went away, or its IP address couldn’t > be looked up. > > > > > > From: AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> On Behalf > Of Cassidy B. Larson > Sent: Friday, July 17, 2020 5:14 PM > To: AnimalFarm Microwave Users Group <af@af.afmug.com > <mailto:af@af.afmug.com>> > Subject: Re: [AFMUG] Federated Wireless SAS outage? > > > > Our Google SAS also went offline. Whatcha wanna bet CNMaestro hard codes > requests to 1.1.1.1 to resolve SAS URLs? > > > > Gonna have to do some tcpdumps to verify. > > > > > On Jul 17, 2020, at 3:58 PM, Larry Smith <lesm...@ecsis.net > <mailto:lesm...@ecsis.net>> wrote: > > > > Cloudflare had a major issue lasting about 30 minutes > > -- > Larry Smith > lesm...@ecsis.net <mailto:lesm...@ecsis.net> > > On Fri July 17 2020 16:47, Joe Novak wrote: > > > whatever just blipped on the internet probably caused it, > authoritative servers at Cloudflare maybe? It's appears to be working again > here via Comcast and work. > > On Fri, Jul 17, 2020 at 4:44 PM Ken Hohhof <af...@kwisp.com > <mailto:af...@kwisp.com>> wrote: > > > TTL on DNS record is 1 minute. Serial number is 1 which seems strange. > > > > *From:* AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> *On > Behalf Of *Nate Burke > *Sent:* Friday, July 17, 2020 4:37 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com > <mailto:af@af.afmug.com>> > *Subject:* Re: [AFMUG] Federated Wireless SAS outage? > > > > Cloud.cambiumnetworks.com <http://cloud.cambiumnetworks.com/> is working fine > for me. I'm resolving to > us-east-1-rtr-1-578252723.us-east-1.elb.amazonaws.com > <http://us-east-1-rtr-1-578252723.us-east-1.elb.amazonaws.com/> > [18.213.196.79] > > On 7/17/2020 4:36 PM, Ken Hohhof wrote: > > Actually, I can’t get DNS resolution for cloud.cambiumnetworks.com > <http://cloud.cambiumnetworks.com/>. Even > at my home which is not on my network. > > > > *From:* AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> > <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> *On Behalf > Of *Ken Hohhof via AF > *Sent:* Friday, July 17, 2020 4:32 PM > *To:* 'AnimalFarm Microwave Users Group' <af@af.afmug.com > <mailto:af@af.afmug.com>> > <af@af.afmug.com <mailto:af@af.afmug.com>> > *Cc:* Ken Hohhof <af...@kwisp.com <mailto:af...@kwisp.com>> <af...@kwisp.com > <mailto:af...@kwisp.com>> > *Subject:* [AFMUG] Federated Wireless SAS outage? > > > > Anyone else experiencing SAS not reachable errors? > > > > Cambium CBRS with Federated Wireless SAS. > > > > > -- > AF mailing list > AF@af.afmug.com <mailto:AF@af.afmug.com> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > > -- > AF mailing list > AF@af.afmug.com <mailto:AF@af.afmug.com> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > > > -- > AF mailing list > AF@af.afmug.com <mailto:AF@af.afmug.com> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > <http://af.afmug.com/mailman/listinfo/af_af.afmug.com> > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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