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* Random domain name resolution errors
@ 2020-02-07 13:23 Pierre Neidhardt
  2020-02-07 13:36 ` Jelle Licht
  0 siblings, 1 reply; 8+ messages in thread
From: Pierre Neidhardt @ 2020-02-07 13:23 UTC (permalink / raw)
  To: help-guix

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Hi!

A strange thing just happened to me: ever since I went to Belgium last
week (don't know if it's relevant) I keep getting domain name resolution
errors.

For instance right now duckduckgo.com fails but guix.gnu.org works.

I'm back home now and the issue persists.

Any clue how to investigate?

Cheers!

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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* Re: Random domain name resolution errors
  2020-02-07 13:23 Random domain name resolution errors Pierre Neidhardt
@ 2020-02-07 13:36 ` Jelle Licht
  2020-02-07 13:38   ` Pierre Neidhardt
  2020-02-07 13:42   ` Julien Lepiller
  0 siblings, 2 replies; 8+ messages in thread
From: Jelle Licht @ 2020-02-07 13:36 UTC (permalink / raw)
  To: Pierre Neidhardt, help-guix

Pierre Neidhardt <mail@ambrevar.xyz> writes:

> Hi!
>
> A strange thing just happened to me: ever since I went to Belgium last
> week (don't know if it's relevant) I keep getting domain name resolution
> errors.

>
> For instance right now duckduckgo.com fails but guix.gnu.org works.
>
> I'm back home now and the issue persists.
>
> Any clue how to investigate?

When I have *some* domain name resolution issues, it usually has
something to do with my nscd being a bit too eager caching negative
results. Assuming you are using Guix System, does `herd invalidate nscd
hosts' help?

  - Jelle

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: Random domain name resolution errors
  2020-02-07 13:36 ` Jelle Licht
@ 2020-02-07 13:38   ` Pierre Neidhardt
  2020-02-07 13:42   ` Julien Lepiller
  1 sibling, 0 replies; 8+ messages in thread
From: Pierre Neidhardt @ 2020-02-07 13:38 UTC (permalink / raw)
  To: Jelle Licht, help-guix

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Yes, on Guix system.
I just run your suggestion, I'll report tomorrow if it fixes the issue
for good.

Do you have to run this often?

Cheers!

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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* Re: Random domain name resolution errors
  2020-02-07 13:36 ` Jelle Licht
  2020-02-07 13:38   ` Pierre Neidhardt
@ 2020-02-07 13:42   ` Julien Lepiller
  2020-02-07 13:51     ` Pierre Neidhardt
  1 sibling, 1 reply; 8+ messages in thread
From: Julien Lepiller @ 2020-02-07 13:42 UTC (permalink / raw)
  To: help-guix, Jelle Licht, Pierre Neidhardt

Le 7 février 2020 08:36:54 GMT-05:00, Jelle Licht <jlicht@fsfe.org> a écrit :
>Pierre Neidhardt <mail@ambrevar.xyz> writes:
>
>> Hi!
>>
>> A strange thing just happened to me: ever since I went to Belgium
>last
>> week (don't know if it's relevant) I keep getting domain name
>resolution
>> errors.
>
>>
>> For instance right now duckduckgo.com fails but guix.gnu.org works.
>>
>> I'm back home now and the issue persists.
>>
>> Any clue how to investigate?
>
>When I have *some* domain name resolution issues, it usually has
>something to do with my nscd being a bit too eager caching negative
>results. Assuming you are using Guix System, does `herd invalidate nscd
>hosts' help?
>
>  - Jelle

Just had this issue yesterday on an unreliable network. Thanks for that command :)

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: Random domain name resolution errors
  2020-02-07 13:42   ` Julien Lepiller
@ 2020-02-07 13:51     ` Pierre Neidhardt
  2020-03-14 14:59       ` Pierre Neidhardt
  0 siblings, 1 reply; 8+ messages in thread
From: Pierre Neidhardt @ 2020-02-07 13:51 UTC (permalink / raw)
  To: Julien Lepiller, help-guix, Jelle Licht

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OK, the error just occurred.  I tried to run the command again but it
hung.
I restarted the service, see if that helps.

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: Random domain name resolution errors
  2020-02-07 13:51     ` Pierre Neidhardt
@ 2020-03-14 14:59       ` Pierre Neidhardt
  2020-03-14 17:22         ` Leo Famulari
  0 siblings, 1 reply; 8+ messages in thread
From: Pierre Neidhardt @ 2020-03-14 14:59 UTC (permalink / raw)
  To: Julien Lepiller, help-guix, Jelle Licht

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Sorry, forgot to follow up with this thread.  Jelle's trick did work for
me.

The issue happens most of the times when I travel.
Should we consider this a bug?  Can we do something to fix it?

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: Random domain name resolution errors
  2020-03-14 14:59       ` Pierre Neidhardt
@ 2020-03-14 17:22         ` Leo Famulari
  2020-03-14 18:26           ` Pierre Neidhardt
  0 siblings, 1 reply; 8+ messages in thread
From: Leo Famulari @ 2020-03-14 17:22 UTC (permalink / raw)
  To: Pierre Neidhardt; +Cc: help-guix

On Sat, Mar 14, 2020 at 03:59:26PM +0100, Pierre Neidhardt wrote:
> Sorry, forgot to follow up with this thread.  Jelle's trick did work for
> me.
> 
> The issue happens most of the times when I travel.
> Should we consider this a bug?  Can we do something to fix it?

I consider it a bug, please feel free to open a ticket.

^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: Random domain name resolution errors
  2020-03-14 17:22         ` Leo Famulari
@ 2020-03-14 18:26           ` Pierre Neidhardt
  0 siblings, 0 replies; 8+ messages in thread
From: Pierre Neidhardt @ 2020-03-14 18:26 UTC (permalink / raw)
  To: Leo Famulari; +Cc: help-guix

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Done, see 40062@debbugs.gnu.org.

Thanks!

-- 
Pierre Neidhardt
https://ambrevar.xyz/

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^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2020-03-14 18:27 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-02-07 13:23 Random domain name resolution errors Pierre Neidhardt
2020-02-07 13:36 ` Jelle Licht
2020-02-07 13:38   ` Pierre Neidhardt
2020-02-07 13:42   ` Julien Lepiller
2020-02-07 13:51     ` Pierre Neidhardt
2020-03-14 14:59       ` Pierre Neidhardt
2020-03-14 17:22         ` Leo Famulari
2020-03-14 18:26           ` Pierre Neidhardt

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