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Re: [public-dns-discuss] Trouble resolving gtfs.translink.ca



This appears to be working now.
On Wed, Dec 5, 2018 at 1:51 PM <tim AT tim-smith.us> wrote:
>
> Hello!
>
> Since 11:06am PST on Dec 4, I've had trouble resolving gtfs.translink.ca from Google Public DNS from a Linux VPS located in Seattle (tds.xyz). I'm currently experiencing the same failure from my Macbook in Orlando. The problem appears intermittently; hitting the resolver several times sometimes produces an okay result before reverting to failure. Other resolvers (Cloudflare, Level3) do not return failures.
>
> From my browser, reload-spamming dns.google.com/resolve occasionally returns a failure like:
>
> {"Status": 2,"TC": false,"RD": true,"RA": true,"AD": false,"CD": false,"Question":[ {"name": "gtfs.translink.ca.","type": 1}],"Comment": "Resolution failure. Please check https://intodns.com/gtfs.translink.ca"}
>
> But usually returns the "correct" answer:
>
> {"Status": 0,"TC": false,"RD": true,"RA": true,"AD": false,"CD": false,"Question":[ {"name": "gtfs.translink.ca.","type": 1}],"Answer":[ {"name": "gtfs.translink.ca.","type": 5,"TTL": 21599,"data": "gtfs.cloudapp.net."},{"name": "gtfs.cloudapp.net.","type": 1,"TTL": 59,"data": "168.61.12.60"}],"Comment": "Response from 13.107.160.201."}
>
> A failure looks like:
>
> $ dig @8.8.8.8 gtfs.translink.ca
>
> ; <<>> DiG 9.10.6 <<>> @8.8.8.8 gtfs.translink.ca
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 47526
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 512
> ;; QUESTION SECTION:
> ;gtfs.translink.ca.        IN    A
>
> ;; Query time: 528 msec
> ;; SERVER: 8.8.8.8#53(8.8.8.8)
> ;; WHEN: Wed Dec 05 05:58:46 EST 2018
> ;; MSG SIZE  rcvd: 46
>
> And a success from Cloudflare's resolver looks like:
>
> $ dig @1.1.1.1 gtfs.translink.ca
>
> ; <<>> DiG 9.10.6 <<>> @1.1.1.1 gtfs.translink.ca
> ; (1 server found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41094
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
>
> ;; OPT PSEUDOSECTION:
> ; EDNS: version: 0, flags:; udp: 1452
> ;; QUESTION SECTION:
> ;gtfs.translink.ca.        IN    A
>
> ;; ANSWER SECTION:
> gtfs.translink.ca.    10798    IN    CNAME    gtfs.cloudapp.net.
> gtfs.cloudapp.net.    58    IN    A    168.61.12.60
>
> ;; Query time: 40 msec
> ;; SERVER: 1.1.1.1#53(1.1.1.1)
> ;; WHEN: Wed Dec 05 06:10:54 EST 2018
> ;; MSG SIZE  rcvd: 93
>
> Thanks,
> Tim
>
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