DNS_PROBE_FINISHED_NXDOMAIN

NS for vodafone.co.uk is not being resolved only on 1.1.1.1.

35 Replies

DNS over Discord: NS records

vodafone.co.uk NS @9.9.9.9 +noall +answer

NAME           | TTL    | DATA                     
---------------+--------+--------------------------
vodafone.co.uk | 3,592s | ukxms1dn92.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxgl1dn92.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxms1dn91.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxgl1dn91.vodafone.co.uk

NAME           | TTL    | DATA                     
---------------+--------+--------------------------
vodafone.co.uk | 3,592s | ukxms1dn92.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxgl1dn92.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxms1dn91.vodafone.co.uk
vodafone.co.uk | 3,592s | ukxgl1dn91.vodafone.co.uk

diggy diggy hole

D JPOP•4mo ago

Anyone from @Cloudflare (Server Owner) available? As this is now a network wide issue

Peps•4mo ago

?pings

Flare•4mo ago

Please do not ping community members for non-moderation reasons. Doing so will not solve your issue faster and will make people less likely to want to help you.

D JPOP•4mo ago

@Idle @Peps apologies, im new to this server

Peps•4mo ago

seeing some kind of error in the query 4 ("..time limit exceeded")

D JPOP•4mo ago

D JPOP•4mo ago

when I retry i get this

1.1.1.1•4mo ago

DNS over Discord: A records

www.vodafone.co.uk A @1.1.1.1 +noall +answer An unexpected server failure [2 - ServFail] occurred when looking up the domain

diggy diggy hole

D JPOP•4mo ago

From google dns

D JPOP•4mo ago

It looks like cache purge via https://one.one.one.one/purge-cache/ didnt help either 🤔

1.1.1.1 — the Internet’s Fastest, Privacy-First DNS Resolver

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Peps•4mo ago

checking it out some more and will escalate it in a minute if needed

D JPOP•4mo ago

thank you

Peps•4mo ago

from what I can tell so far, it appears to be something on Vodafone's side https://dnsviz.net/d/vodafone.co.uk/dnssec/ https://dnssec-debugger.verisignlabs.com/vodafone.co.uk

Peps•4mo ago

https://www.whatsmydns.net/#A/vodafone.co.uk

DNS Propagation Checker - Global DNS Checker Tool

Instant DNS Propagation Check. Global DNS Propagation Checker - Check DNS records around the world.

D JPOP•4mo ago

that still doesnt make sense. DNSSec seems to have an issue but the servers are resolving fine https://dnsviz.net/d/vodafone.co.uk/servers/ THis is also the case for voxi.co.uk https://dnsviz.net/d/vodafone.co.uk/responses/ also there have been no DNS changes from our end

Peps•4mo ago

it seems like their nameservers are having issues

Peps•4mo ago

https://atlas.ripe.net/measurements/77111235 https://atlas.ripe.net/measurements/77111236 https://atlas.ripe.net/measurements/77111237 https://atlas.ripe.net/measurements/77111238

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

Peps•4mo ago

1000 probes trying their 4 nameservers all having mixed results only about 25% actually succeeds so far it really seems to be something on their side Are you from Vodafone?

D JPOP•4mo ago

yes

Peps•4mo ago

ah I see

D JPOP•4mo ago

anychance we can connect off this thread?

Peps•4mo ago

I'm just a community volunteer, so I won't be able to do much for you but looking at those RIPE Atlas reports I sent, its not something specific to 1.1.1.1 as even global probes are having issues connecting to your nameservers If you think it's still needed, I can try to get someone's attention at Cloudflare

D JPOP•4mo ago

I would have expected some sort of a cache to cause the other nameservers to respond back with a result however, cache busting 8.8.8.8 and retrying still seemed to help resolve

D JPOP•4mo ago

Peps•4mo ago

about 25% of the probes seem to be able to resolve successfully with the nameservers, so my guess would be that 8.8.8.8 is just one of those lucky few and immediately caches the result

D JPOP•4mo ago

Seems to resolve intermittently now

Peps•4mo ago

yep, looks like the nameservers are fixed ran another RIPE Atlas test, and they're pretty much all good https://atlas.ripe.net/measurements/77111506 https://atlas.ripe.net/measurements/77111507 https://atlas.ripe.net/measurements/77111508 https://atlas.ripe.net/measurements/77111509

D JPOP•4mo ago

can you run one for voxi.co.uk please?

Peps•4mo ago

sure, 1 sec

Peps•4mo ago

https://atlas.ripe.net/measurements/77111750 https://atlas.ripe.net/measurements/77111751 https://atlas.ripe.net/measurements/77111752 https://atlas.ripe.net/measurements/77111753

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

RIPE Atlas - RIPE Network Coordination Centre

RIPE Atlas is the RIPE NCC's main Internet data measurement system.

D JPOP•4mo ago

just trying to see if there is a log when cloudflare last refreshed caches There was no change done from our end Trying to get a RCA (if any of these sound rookie, it's cause it actually is - i'm sadly not from networks. Trying to personally understand what went wrong)

SebastiaanYN•4mo ago

It looks like we were unable to connect to the nameservers in the given timeframe Might be the result of network issues

D JPOP•4mo ago

Thanks all - you've been of massive help. Issue seems to have resolved globally now 😄

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DNS_PROBE_FINISHED_NXDOMAIN