[squid-users] can squid use dns server on random port(non-53)?

[Gordon Hsiao]

Date: Thu, 28 Jun 2018 07:06:14 +1200
> From: Amos Jeffries <squid3 at treenet.co.nz>
> To: squid-users at lists.squid-cache.org
> Subject: Re: [squid-users] can squid use dns server on random
>         port(non-53)?
> Message-ID: <4563f027-a210-deeb-df82-f5a238887410 at treenet.co.nz>
> Content-Type: text/plain; charset=utf-8
>
> On 27/06/18 16:29, Dieter Bloms wrote:
> > Hello,
> >
> > On Tue, Jun 26, Gordon Hsiao wrote:
> >
> >> checked the manual it seems I can only set dnsserver with a new IP, is
> it
> >> possible to make squid support non-standard DNS port, e.g. 5353?
>
> Squid only contains a minimal stub resolver. It requires a recursive
> resolver on port 53 (UDP *and* TCP) to do the actual DNS resolving and
> any fancy things like strange ports.
>
> So what Dieter said:
>
> >
> > maybe you can use a dns resolver like unbound, dnscache, dnsmasq, ....
> > which can be configure to listen on localhost port 53, so only squid can
> > access it via localhost and no other servers.
> > These dns resolvers can be configure to use a non standard port like
> > 5353 for the destination dns servers.
> >
> > But in the past I've never seen a dns server listening on port 5353, so
> > maybe the setup is a little broken.
> >
>
>
> Amos
>
>
> I agree it's a bit unusual, but adding a nameserver port option will be
nice if the changes are not intrusive.

Thanks,
Gordon
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