[Dnsmasq-discuss] multiple upstream servers

Geert Stappers stappers at stappers.nl
Thu Jul 30 17:36:09 BST 2020


On Thu, Jul 30, 2020 at 02:20:42PM +0000, Horn Bucking wrote:
> 
> On 7/30/20, wkitty42 at gmail.com wrote:
> 
> > On 7/29/20 7:59 PM, Dan Schaper wrote:
> > > You've told dnsmasq to send a lease with option 6 (DNS) set to
> > > 10.88.13.3. Where dnsmasq forwards the queries to is not relevant to
> > > your issue, you only have one upstream server configured.
> > 
> > are you saying that this
> > 
> > > > dhcp-option=tag:red,option:dns-server,10.88.13.3
> > > > dhcp-option=tag:green,option:dns-server,10.88.13.4
> > 
> > is not defining two upstream servers?
> If you'd expect dnsmasq's DNS server to switch its upstream DNS based on
> those options, that expectation would be entirely unjustified:
> Those lines configure DHCP, not DNS.
> 
> That first line instructs the DHCP server to hand out 10.88.13.3 as DNS
> server when a red DHCP client is requesting that DHCP information, e.g.
> during initial DHCP lease negotiation - likewise the second with 10.88.13.4
> for green clients.
> A client will then send its DNS queries to that respective DNS server.
> 
> S Irlapati, you did force your client to request a new DHCP lease to put
> those options into effect, didn't you?


Original Poster:  How can we, this mailinglist, make you less shy?


Regards
Geert Stappers
-- 
Silence is hard to parse



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