DNS problems

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happyfunball

287 posts

Ultimate Geek

#150295 17-Jul-2014 15:26

I've noticed that wikipedia is suddenly not working. it appears to be a DNS issue.

My PC can't see it, and my phone on wifi can't see it either. When I turn off wifi on the phone, suddenly the site works fine.

I'm on Vodafone cable in Wellington. Anyone else see this? A problem URL is: http://www.wikipedia.org

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#1090821 17-Jul-2014 15:30

Same here.
Dont blame the DNS. I doubt it is...
Wikimedia doesnt work either. Nor does the IP directly.

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mattwnz

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#1090823 17-Jul-2014 15:31

No problems accessing it on telecom.

freitasm

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#1090826 17-Jul-2014 15:32

What DNS are you using?

nslookup to TCL servers return a valid IP for this domain.

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hio77

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#1090827 17-Jul-2014 15:33

alls fine on snap ;)

try a nslookup wikipedia.org and see if the dns is resolving at all.

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Coil

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#1090831 17-Jul-2014 15:35

hio77

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#1090834 17-Jul-2014 15:38

TimA:

well that looks all fine... that ipv6, so useful for you ;)

Wikipedia loads up over v6 for me, but looking at v4 its fine too.

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happyfunball

287 posts

Ultimate Geek

#1090838 17-Jul-2014 15:39

I assumed it was DNS, but it may be the cache. It can resolve wikipedia.org just fine, just not any of its subdomains, eg. www.

For example:

iMac:~> ping wikipedia.org
PING wikipedia.org (208.80.154.224): 56 data bytes
64 bytes from 208.80.154.224: icmp_seq=0 ttl=51 time=304.648 ms
64 bytes from 208.80.154.224: icmp_seq=1 ttl=51 time=295.239 ms
^C
--- wikipedia.org ping statistics ---
2 packets transmitted, 2 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 295.239/299.943/304.648/4.705 ms

iMac:~> ping www.wikipedia.org
ping: cannot resolve www.wikipedia.org: Unknown host
iMac:~>

The site works fine on the same devices using a different internet connection.

iphone on telecom -> works fine
iphone on wifi vodafone -> fails

Coil

6614 posts

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#1090841 17-Jul-2014 15:42

Well it aint DNS. Maybe cached by Telecom not by Vodafone, Or maybe Vodafone cache is in the way.

happyfunball

287 posts

Ultimate Geek

#1090845 17-Jul-2014 15:45

The problem is confined to subdomains (ie. www, en etc). The main domain resolves ok.

i.e.: wikipedia.org resolves to an IP.

www.wikipedia.org does NOT resolve.

Which leads me to believe its a DNS/cache issue.

Using a VPN, the problems magically disappear.

bagheera

459 posts

Ultimate Geek

#1090846 17-Jul-2014 15:45

also having issues on vodafone network, but fine on telecom / snap - but looks like people around the world are also so having trouble

http://www.isitdownrightnow.com/wikipedia.org.html

dylanp

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#1090851 17-Jul-2014 15:52

Hi everyone

Thanks for the heads up. We can't access wikipedia from our test bench too. I've passed it on to our team to look into. Hopefully we'll get it sorted soon.

Cheers

Dylan

Demeter

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One NZ

#1090852 17-Jul-2014 15:52

bagheera: also having issues on vodafone network, but fine on telecom / snap - but looks like people around the world are also so having trouble

http://www.isitdownrightnow.com/wikipedia.org.html

What you mean it's not Vodafone's cache? Imagine that.

freitasm

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#1090854 17-Jul-2014 15:55

Demeter:
bagheera: also having issues on vodafone network, but fine on telecom / snap - but looks like people around the world are also so having trouble

http://www.isitdownrightnow.com/wikipedia.org.html

What you mean it's not Vodafone's cache? Imagine that.

Exactly. Imagine that. Would be a first :)

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Sideface

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#1090857 17-Jul-2014 15:57

Resolves OK on VF cable (Wellington)

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Demeter

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#1090861 17-Jul-2014 16:01

freitasm:
Demeter:
bagheera: also having issues on vodafone network, but fine on telecom / snap - but looks like people around the world are also so having trouble

http://www.isitdownrightnow.com/wikipedia.org.html

What you mean it's not Vodafone's cache? Imagine that.

Exactly. Imagine that. Would be a first :)

Pfffft.

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