CloudFlare Issues?
John Von Essen
john at essenz.com
Sat Jul 18 00:46:58 UTC 2020
Did anyone see any collateral damage from this outside of Cloudflare? Specifically Azure?
I manage a very large site in Azure, and at the exact same time of the Cloudflare incident we saw a spike in traffic (like a DDoS or Bot), then followed by unusual hardware resource anomalies. We’re globally spread in Azure, but we only saw this in the US and Brazil.
Very coincidental, but possible.
-John
> On Jul 17, 2020, at 5:33 PM, Aaron C. de Bruyn via NANOG <nanog at nanog.org> wrote:
>
> More digging shows high latency to CloudFlare DNS servers from Comcast in Washington and Oregon as well as a few other providers (Charter, ToledoTel), etc...
>
> Sites that do resolve using other DNS servers but are hosted on CloudFlare aren't loading.
> Sites that use CloudFlare for their DNS aren't resolving either.
> traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 60 byte packets
>
> 1 _gateway (192.168.42.254) 0.185 ms 0.109 ms 0.117 ms
> 2 pppoe-gw-208-70-52.toledotel.com <http://pppoe-gw-208-70-52.toledotel.com/> (208.70.52.1) 1.896 ms 1.881 ms 1.903 ms
> 3 tuk-edge-13.inet.qwest.net <http://tuk-edge-13.inet.qwest.net/> (198.233.244.225) 4.158 ms 4.082 ms 4.071 ms
> 4 sea-brdr-03.inet.qwest.net <http://sea-brdr-03.inet.qwest.net/> (67.14.41.154) 8.976 ms 8.949 ms 8.903 ms
> 5 * * *
> 6 ae-1-51.ear2.Seattle1.Level3.net <http://ae-1-51.ear2.seattle1.level3.net/> (4.69.203.173) 4.494 ms 4.350 ms 4.311 ms
> 7 4.53.154.10 (4.53.154.10) 77.622 ms 103.323 ms 103.240 ms
> 8 * * *
> 9 * * *
> 10 * * *
> 11 * * *
> 12 * * *
> 13 one.one.one.one (1.1.1.1) 87.515 ms * *
>
> -A
>
> On Fri, Jul 17, 2020 at 2:18 PM Aaron C. de Bruyn <aaron at heyaaron.com <mailto:aaron at heyaaron.com>> wrote:
> Anyone seeing Cloudflare DNS outages or site issues?
>
> Affecting a bunch of sites in Washington and Oregon.
>
> -A
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