On 18/12/13 09:30, ion.beguiristain wrote:
Hi everyone, I'm Ion a network admin who is having a bit of trouble with
dnsmasq. I'm running dnsmasq 2.59-4 on a x86_64 Ubuntu server 12.04.3 LTS.
It has been working fine for a long time but couple of days ago it
started intermitently failing to resolve queries. I have added
log-queries to the config, but I can't see a single failed query in the
logs. Although when you try to access any web it fails half of the time.
It gets specially bad when trying to resolve internal hostnames or
websites urls.
When it resolves something it takes over 10 seconds. Can this be a bug
in 2.59-4?

There are none known that would cause that problem. My immediate suspicion would be the external nameservers. Can you try configuring dnsmasq to forwward to Google DNS (8.8.8.8) and see if that fixes things?


Cheers,

Simon.


I also read about dnsmasq setting the DF bit (Don't fragment), but
tracepath revealed a 1500 bytes pmtu, so I don't think that is the
problem. I would appreciatte any clues as to how to troubleshoot or
solve further. Thanks alot for your time.

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