[Dnsmasq-discuss] CNAMEs

[Ken Gillett]

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 (whcih 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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