nanog mailing list archives

Re: dns on fios/frontier


From: Robert Kisteleki <robert () ripe net>
Date: Mon, 20 Apr 2015 20:57:58 +0200


anyone on fios/frontier can please run a quickie and see if you can get
to http://psg.com/?  have a net friend who can not from multiple hosts
on their home lan and he has rebooted router.  called support and they
showed their sunday best "the web site is down."  sigh.
https://atlas.ripe.net/probes/13318/

two things.  

so how did you find it?  i was wondering if i could find a useful atlas
probe or nlring node, and how to find them.

https://atlas.ripe.net/docs/rest/#probe
or more specifically:
https://atlas.ripe.net/api/v1/probe/?tags=fios (it gives exactly one result
at the moment -- the above mentioned one. It's useful if people actually tag
their probes...)

About Ring: we're not authoritative -- I believe http://map.ring.nlnog.net/ is.

secondly, i gotta snark that the ui maximizes the eurocracy to do a
seemingly simple
    dig @probe psg.com. a
and
    ping psg.com
and it does not even serve coffee during the hour the dig and ping are
"running."  (quaint use of the gerund).

I'd like to draw attention to the "one-off measurement" feature, which
responds within 10-30 seconds or so.

Indeed, it serves no coffee :-(

i am not great at json, but looks to me as if it is a dns failure

[{"from":"74.106.249.162","fw":4680,"group_id":1964819,"lts":163,"msm_id":1964820,"msm_name":"Tdig","prb_id":13318,"resultset":[{"af":4,"dst_addr":"10.0.0.13","lts":163,"proto":"UDP","result":{"ANCOUNT":1,"ARCOUNT":3,"ID":61959,"NSCOUNT":3,"QDCOUNT":1,"abuf":"8geBgAABAAEAAwADA3BzZwNjb20AAAEAAcAMAAEAAQAADhAABJMcAD7ADAACAAEAAA4QAALADMAMAAIAAQAADhAAEgRubG5zB2dsb2JuaXgDbmV0AMAMAAIAAQAADhAABgNyaXDADMAMABwAAQAADhAAECABBBgAAQAAAAAAAAAAAGLAYQABAAEAApzNAASTHAAnwGEAHAABAAGYeQAQIAEEGAABAAAAAAAAAAAAOQ==","rt":175.454,"size":175},"src_addr":"10.0.1.100","subid":1,"submax":3,"time":1429553733},{"af":4,"dst_addr":"38.103.8.115","lts":164,"proto":"UDP","result":{"ANCOUNT":1,"ARCOUNT":3,"ID":10350,"NSCOUNT":3,"QDCOUNT":1,"abuf":"KG6BgAABAAEAAwADA3BzZwNjb20AAAEAAcAMAAEAAQAADhAABJMcAD7ADAACAAEAAA4QAAYDcmlwwAzADAACAAEAAA4QAALADMAMAAIAAQAADhAAEgRubG5zB2dsb2JuaXgDbmV0AMAMABwAAQAADhAAECABBBgAAQAAAAAAAAAAAGLANQABAAEAAMIIAASTHAAnwDUAHAABAADCCAAQIAEEGAABAAAAAAAAAAAAOQ==","rt":370.067,"size":175},"src_addr":
 "
1
 
0.0.1.100","subid":2,"submax":3,"time":1429553734},{"af":6,"dst_addr":"2001:550:102:301::13","lts":165,"proto":"UDP","result":{"ANCOUNT":1,"ARCOUNT":3,"ID":47682,"NSCOUNT":3,"QDCOUNT":1,"abuf":"ukKBgAABAAEAAwADA3BzZwNjb20AAAEAAcAMAAEAAQAADg4ABJMcAD7ADAACAAEAAA4OABIEbmxucwdnbG9ibml4A25ldADADAACAAEAAA4OAAYDcmlwwAzADAACAAEAAA4OAALADMAMABwAAQAADg4AECABBBgAAQAAAAAAAAAAAGLAUwABAAEAApzLAASTHAAnwFMAHAABAAGYdwAQIAEEGAABAAAAAAAAAAAAOQ==","rt":1.345,"size":175},"src_addr":"2001:550:102:301::1001","subid":3,"submax":3,"time":1429553735}],"timestamp":1429553733,"type":"dns"}]

No, it's ok, see https://atlas.ripe.net/measurements/1964820/#!map

looks pingable

[{"af":4,"avg":77.5353333333,"dst_addr":"147.28.0.62","dst_name":"147.28.0.62","dup":0,"from":"74.106.249.162","fw":4680,"group_id":1964819,"lts":166,"max":78.025,"min":77.132,"msm_id":1964819,"msm_name":"Ping","prb_id":13318,"proto":"ICMP","rcvd":3,"result":[{"rtt":78.025},{"rtt":77.449},{"rtt":77.132}],"sent":3,"size":48,"src_addr":"10.0.1.100","step":240,"timestamp":1429553736,"ttl":239,"type":"ping"}]

Yep.

Cheers,
Robert

http://dnsviz.net/d/psg.com/dnssec/ thinks the dnssec glorp is fine.

randy



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