[Dnsmasq-discuss] : Dns lookup failures if one of the upstream servers are down

Abhishek Patti abhishek.patti at gmail.com
Tue Mar 31 16:36:29 BST 2020


Hi

Thanks, I will do further testing and will check back if I still see the
issue.

On Tue, Mar 31, 2020 at 4:06 AM <
dnsmasq-discuss-request at lists.thekelleys.org.uk> wrote:

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>    1. Re: : Dns lookup failures if one of the upstream servers are
>       down (P Elaborate) (wkitty42 at gmail.com)
>    2. Re: Fwd: dnsmasq localise-queries + addn-hosts (Simon Kelley)
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> Message: 1
> Date: Mon, 30 Mar 2020 15:34:06 -0400
> From: wkitty42 at gmail.com
> To: dnsmasq-discuss at lists.thekelleys.org.uk
> Subject: Re: [Dnsmasq-discuss] : Dns lookup failures if one of the
>         upstream servers are down (P Elaborate)
> Message-ID: <d04ba494-ecbb-9da2-e763-537cb0524631 at gmail.com>
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> please quote relevant text and respond inline...
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> please also trim irrelevant text... especially when replying to digests ;)
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> ------------------------------
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> Message: 2
> Date: Mon, 30 Mar 2020 20:42:25 +0100
> From: Simon Kelley <simon at thekelleys.org.uk>
> To: dnsmasq-discuss at lists.thekelleys.org.uk
> Subject: Re: [Dnsmasq-discuss] Fwd: dnsmasq localise-queries +
>         addn-hosts
> Message-ID: <84b5c3db-55c4-4d06-a8da-a2774de1c699 at thekelleys.org.uk>
> Content-Type: text/plain; charset=utf-8
>
> On 28/03/2020 20:38, Jake Howard wrote:
> > Hi,
> >
> > My intention is to have 1 dnsmasq instance, accessible over 2 interfaces
> > (listening on all), and have the response to a query differ based on the
> > interface, and therefore its incoming IP. From what i've read, that's
> > exactly what localise-queries is meant to do, but it doesn't appear to
> > be unless I put the entries into /etc/hosts directly.
>
>
> OK, what you're expecting to happen and what I'm expecting to happen are
> the same. That's good.
>
> I just did a quick test, and it seems to work fine for me. The
> example.com addresses are in /tmp/hosts.
>
>
> srk at holly:~/dnsmasq/dnsmasq$ src/dnsmasq -d --log-queries
> --localise-queries -p 10000 --addn-hosts=/tmp/hosts
> dnsmasq: started, version 2.81rc4-5-gd162bee cachesize 150
> dnsmasq: compile time options: IPv6 GNU-getopt no-DBus no-UBus no-i18n
> no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack ipset auth no-DNSSEC
> loop-detect inotify dumpfile
> dnsmasq: reading /etc/resolv.conf
> dnsmasq: using nameserver 127.0.1.1#53
> dnsmasq: read /etc/hosts - 9 addresses
> dnsmasq: read /tmp/hosts - 2 addresses
> dnsmasq: query[A] example.com from 127.0.0.1
> dnsmasq: /tmp/hosts example.com is 192.168.151.43
> dnsmasq: /tmp/hosts example.com is 192.168.150.43
> dnsmasq: query[A] example.com from 192.168.150.49
> dnsmasq: /tmp/hosts example.com is 192.168.150.43
>
>
> If it's not working for you, that's a bug, but we need to find what it
> is about your setup that tickles the bug.
>
> Can you boil it down to the simplest configuration that displays the
> problem, and also specify which version of dnsmasq you're using?
>
>
> cheers,
>
> Simon.
>
>
> >
> > Thanks,
> > - Jake Howard
> >
> > On Sat, 28 Mar 2020, at 17:59, Simon Kelley wrote:
> >> On 19/03/2020 21:47, Jake Howard wrote:
> >> > Hello!
> >> >?
> >> > Is `localise-queries` meant to work against entries added via?
> >> > `addn-hosts`? Querying a record returns both IPs, but always in the
> >> same?
> >> > order. The order is correctly fixed when the records are put in?
> >> > `/etc/hosts` directly.
> >>
> >>
> >> Yes, localise-queries? works with entries added via addn-hosts, but it
> >> doesn't have anything to do with the order that records appear, so that
> >> doesn't address your problem. What are you trying to achieve?
> >>
> >>
> >> Simon.
> >>
> >>
> >> >?
> >> > Config:
> >> >?
> >> > ```
> >> > localise-queries
> >> > no-resolv
> >> > cache-size=10000
> >> > log-queries
> >> > log-facility=/var/log/pihole.log
> >> > local-ttl=2
> >> > log-async
> >> > server=8.8.8.8
> >> > server=8.8.4.4
> >> > server=1.1.1.1
> >> > server=1.0.0.1
> >> > interface=eth0
> >> > server=/use-application-dns.net/
> >> >?
> >> > addn-hosts=/etc/vpn-hosts.conf
> >> > localise-queries
> >> >?
> >> > ```
> >> >?
> >> > This is from pihole, but AFAIK that shouldn't make a difference if
> I'm?
> >> > modifying the config directly.
> >> >?
> >> > Would appreciate some input, or being told i'm wrong!
> >> >?
> >> > Thanks,
> >> >?
> >> > - Jake Howard
> >> >?
> >> >?
> >> >?
> >> >?
> >> > _______________________________________________
> >> > Dnsmasq-discuss mailing list
> >> > Dnsmasq-discuss at lists.thekelleys.org.uk
> >> > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
> >> >?
> >>
> >>
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-- 
abhishek
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