[Dnsmasq-discuss] can dnsmasq report DNS resolve time in ms?
Simon Kelley
simon at thekelleys.org.uk
Wed Sep 8 22:16:39 BST 2010
Adam Dingle wrote:
> Hello -
>
> I'm running dnsmasq on my Ubuntu machine, and I'd like to gather
> statistics about how quickly my ISP's DNS server handles all the DNS
> queries I throw at it. So I'd like dnsmasq to report how many
> milliseconds it takes the upstream DNS server to respond to queries. I
> tried logging to a file, but the timestamp on each line has a 1-second
> resolution, which is not good enough since I want a count in
> milliseconds. So I can't see any way to get this information from
> dnsmasq - is this correct? Would you accept a patch that caused dnsmasq
> to report elapsed milliseconds on each response from a DNS server
> (possibly enabled via yet another command-line option?)
>
I'd certainly consider a patch.
Another option might be to use syslog-ng, which can certainly add
sub-second timestamps. As dnsmasq logs the query and the answer in
different messages, that should be all you need.
Cheers,
Simon.
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