[Dnsmasq-discuss] CNAMEs

[Ken Gillett]

Any help with the CNAME problem?


Ken  G i l l e t t

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> On 4 Feb 2022, at 20:46, Ken Gillett via Dnsmasq-discuss <dnsmasq-discuss at lists.thekelleys.org.uk> wrote:
> 
> I have several CNAMEs set up in DNSmasq on my Mac server that I thought were working. If I use the 'host' command to check a CNAME e.g :-
> 
> 	host thecname
> 
> it returns:-
> 
> 	thecname is an alias for thetarget.
> 	thetarget has address xx.xx.xx.xxx 
> 
> So looks good, but…
> 
> I now realise that all is not well. If I instead:-
> 
> 	ping thecname
> 
> it returns:-
> 
> 	ping: cannot resolve thecname: Unknown host
> 
> Which is apparent nonsense as it has just resolved that exact CNAME.
> The problem appears to be that the client Mac performing the query adds the domain name, so DNSmasq needs to resolve thecname.thedomain (which is not cofigured), as if I use:-
> 
> 	ping thecname.
> 
> It works.
> 
> Previously I used MacOS Server's DNS (BIND) and a CNAME is listed as:-
> 
> 	thecname IN  CNAME thetarget.thedomain.
> 
> Which works perfectly. However, if I try something similar in DNSmasq, it simply fails.
> 
> If instead I create the DNSmasq cname as:-
> 
> 	cname=thecname.thedomain,thetarget
> 
>  That seems to work. But
> 
> Apart from being the inverse of how BIND configures CNAMEs, how can I configure DNSmasq CNAMEs to work without having to add thedomain to every cname in every CNAME record in DNSmasq? I don't like to hard code things like that as it could change. Is there any way to make DNSmasq deal with this appropriately?
> 
> 
> 
> Ken  G i l l e t t
> 
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