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602 posts

Ultimate Geek
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Topic # 189125 17-Dec-2015 18:06
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Is anyone else seeing these problems or is it just me?

sh-3.2$ nslookup twitter.com
;; Got SERVFAIL reply from 121.98.0.1, trying next server
;; Got SERVFAIL reply from 121.98.0.1, trying next server
Server:        121.98.0.2
Address:    121.98.0.2#53

** server can't find twitter.com: SERVFAIL

sh-3.2$ nslookup geekzone.co.nz
Server:        121.98.0.1
Address:    121.98.0.1#53

Non-authoritative answer:
Name:    geekzone.co.nz
Address: 104.25.178.9
Name:    geekzone.co.nz
Address: 104.25.179.9

sh-3.2$


Looking here, it appear that I'm using the correct DNS server ip addresses.
The problem seems to affect just a few domains - at least twitter.com and perhaps others.

My mobile can find twitter.com using vodafone 3G/4G and I can find twitter.com on Orcon DSL if I change the dns server.

sh-3.2$ nslookup
> twitter.com
;; Got SERVFAIL reply from 121.98.0.1, trying next server
;; Got SERVFAIL reply from 121.98.0.1, trying next server
Server:        121.98.0.2
Address:    121.98.0.2#53

** server can't find twitter.com: SERVFAIL
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> twitter.com
Server:        8.8.8.8
Address:    8.8.8.8#53

Non-authoritative answer:
Name:    twitter.com
Address: 104.244.42.65
Name:    twitter.com
Address: 104.244.42.1
>

I'd expect that others will find the same problem for twitter.com, but it would be good to have it verified.

Edit: fixed a lot of typos.






#include <standard.disclaimer>

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1 post

Wannabe Geek
+1 received by user: 2


  Reply # 1452457 17-Dec-2015 18:30
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Yeah, same problem here. Was fine switching to google DNS servers, 8.8.8.8 / 8.8.4.4. Previously also unable to access github.

2 posts

Wannabe Geek


  Reply # 1452460 17-Dec-2015 18:33
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I'm having same problem

 
 
 
 




602 posts

Ultimate Geek
+1 received by user: 38


  Reply # 1452464 17-Dec-2015 18:41
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I reported it to Orcon using the web form just a couple of minutes ago.
Will update when/if I hear anything back.

Can confirm github.com is also not working with Orcon DNS servers, but o.k. with 8.8.8.8.




#include <standard.disclaimer>

407 posts

Ultimate Geek
+1 received by user: 99


  Reply # 1452477 17-Dec-2015 18:53
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alexx: I reported it to Orcon using the web form just a couple of minutes ago.
Will update when/if I hear anything back.

Can confirm github.com is also not working with Orcon DNS servers, but o.k. with 8.8.8.8.

 



yup same here....




 The views expressed by me are not necessarily those of my employer




602 posts

Ultimate Geek
+1 received by user: 38


  Reply # 1452595 17-Dec-2015 20:03
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The DNS issues appear to affect Spotify as well, as the Spotify client needs access to more than just spotify.com to authenticate and connect to content. A quick check with tcpdump finds that it also requires ap.spotify.com and apresolve.spotify.com and these are unavailable from Orcon DNS servers too.

sh-3.2$ nslookup
> spotify.com
Server:        121.98.0.1
Address:    121.98.0.1#53

Non-authoritative answer:
Name:    spotify.com
Address: 194.132.197.147
Name:    spotify.com
Address: 194.132.198.165
Name:    spotify.com
Address: 194.132.198.228
> ap.spotify.com
;; Got SERVFAIL reply from 121.98.0.1, trying next server
;; Got SERVFAIL reply from 121.98.0.1, trying next server
Server:        121.98.0.2
Address:    121.98.0.2#53

** server can't find ap.spotify.com: SERVFAIL
> apresolve.spotify.com
;; Got SERVFAIL reply from 121.98.0.1, trying next server
;; Got SERVFAIL reply from 121.98.0.1, trying next server
Server:        121.98.0.2
Address:    121.98.0.2#53

** server can't find apresolve.spotify.com: SERVFAIL




#include <standard.disclaimer>

2 posts

Wannabe Geek


  Reply # 1452602 17-Dec-2015 20:11
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There are probably hundreds or thousands of sites affected. First thing I did was close and re-open my browser, with several windows open. Almost all of the pages stalled on some or other tracker or ad-page, if not the main site. Includes gmail. Some sites stalled, then came up after a while.

I spent 20 mins on the phone with them (after a 15 minute wait). They're getting lots of calls and emails coming in (also about the dead phone lines people are getting, including me). So hopefully they're onto it.

In the meantime it's easy enough to temporarily change your dns server.

1 post

Wannabe Geek
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  Reply # 1452606 17-Dec-2015 20:14
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Orcon are saying it's a DoS attack. No ETR at the moment.

https://twitter.com/Orcon/status/677381078856810496 


 

 


36 posts

Geek
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Reply # 1452613 17-Dec-2015 20:28
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Same issue here. Switched to Google DNS and I'm back up.

1 post

Wannabe Geek
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Reply # 1452635 17-Dec-2015 20:51
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You guys are really great thanks.  Same problem with Orcon here and have been searching for a solution for hours.  Should have just tried here first!  Changed to google 8.8.8.8 8.8.8.4 and all good now.  Thanks a bunch

251 posts

Ultimate Geek
+1 received by user: 57

Trusted
Orcon

  Reply # 1452637 17-Dec-2015 20:55
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Hi all,

First up, sorry for the trouble this evening. Can confirm this is related to a DoS attack on our name servers. Our engineers are across it and should hopefully have it sorted soon - no ETR at this stage though.

Our network status page has been updated: https://www.orcon.net.nz/network_status.

Cheers,

Cam

5033 posts

Uber Geek
+1 received by user: 2316


  Reply # 1452644 17-Dec-2015 21:03
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Slingshot have the same issues.



602 posts

Ultimate Geek
+1 received by user: 38


  Reply # 1452728 17-Dec-2015 22:45
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I seem to be getting a response for my DNS requests for those queries using the Orcon DNS servers again. Perhaps it might be worth waiting for an update from Orcon before switching back, but at least my twitter and Spotify seem to be back again.






#include <standard.disclaimer>

251 posts

Ultimate Geek
+1 received by user: 57

Trusted
Orcon

  Reply # 1452849 18-Dec-2015 09:25
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Hi all,

I can confirm this was resolved late last night. Thanks very much for your patience!

If you're still experiencing issues please contact our Helpdesk on 0800 13 14 15.

Cheers,

Cam

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