that's very helpful Michael, thank you, works perfectly for my scenario
(and no I don't care about CNAMEs, As are ok).

thanks again,

Spike

On Thu, Aug 17, 2017 at 10:25 AM Michael <mich...@kmaclub.com> wrote:

> On 08/14/2017 03:27 PM, Spike wrote:
> > Dear all,
> >
> > two things I'm trying to figure out:
> >
> > #CNames
> > how can I implement cnames in dnsmasq? I have static per mac
> > assignments in my hosts file and I'd like to add one or more cnames
> > per host. Is that possible, what's the syntax? I've seen some pages
> > discussing the topic, but none of the solutions worked for me and more
> > importantly none of them was specifying more than one cname.
> >
> > #DNS while host is down
> > As far as I can see dnsmasq will respond to a host request only if the
> > host is alive/got a dhcp. Is it possible to override this behavior? If
> > I have a host definition with an ip, I need that to resolve even if
> > the host is down.
> >
>
> I think they key is to realize dnsmasq is a tool with multiple jobs:
> 1) DNS
> 2) DHCP
> 3) tftp
> 4) etc
>
> These jobs can all be interconnected easily within dnsmasq.
>
> Static host for DNS - add to /etc/hosts or specify an alternate (or
> additional ) host file w/ addn-hosts=<file> directive.
>
> My host looks like:
>
> 192.168.1.10  hosta www aliasb aliasc
> 192.168.1.11  hostb
> 192.168.1.12  hostc
>
> These entries are permanent and have no dependency on these hosts having
> a dhcp lease.  www, aliasb, and aliasc are now "aliases" for hosta, but
> they are A records and not CNAMES.    Do you really require a CNAME or
> will A record suffice?
>
> you can then statically define DHCP clients if you choose such as:
>
> dhcp-host=00:90:a9:f1:b3:e7,hostf
>
> dnsmasq will now provide a dhcp lease to this host.    If hostf is in
> your hosts file, it will give it that static IP.   If it isnt', it will
> give you an IP from the dhcp range AND dynamically add hostf to DNS.
> Once DHCP lease is no longer valid, it will remove hostf from DNS.
>
> if you don't define the dhcp-host at all, it will give a DHCP ip and use
> the hostname the client passed up to add to DNS and will again remove it
> when the lease goes away.
>
> Does that help clarify?
>
> Michael
>
>
>
>
>
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