[Dnsmasq-discuss] Can I serve two different DHCP domains from a single dnsmasq server?

Thu Aug 5 17:15:56 BST 2010

Hi Santiago,

I've indeed tested it extensively before posting, at least as much as I can without disturbing the production environments around.

With the configuration below, and ensuring that there were no leases around to mess up anything, the machine in the bar domain would instead get a random ip in the foo domain, no hostname, and foo dns domain.

On Sunday, when production is stopped, I can swap the order of the domain lines to see if dnsmasq recognises only the first, and do other more dangerous tests.

Regards,

Alberto Cuesta-Canada
GaaS Team Lead
Excelian Ltd.
+44 (0) 7942633361

________________________________

From: santiago.j.zarate at gmail.com on behalf of Santiago Zarate
Sent: Thu 05/08/2010 15:56
To: Alberto Cuesta-Canada
Cc: dnsmasq-discuss at lists.thekelleys.org.uk
Subject: Re: [Dnsmasq-discuss] Can I serve two different DHCP domains from a single dnsmasq server?

if i'm not mistaken, this is possible... but its matter of begin testing...

2010/8/5 Alberto Cuesta-Canada <alberto.cuesta at excelian.com>:
> Hi all,
>
> does anyone know if it is possible to send via DHCP hostnames in two different domains from a single dnsmasq server?
>
> It should be something like:
>
> domain=foo,192.168.0.0/24
> domain=bar,192.168.1.0/24
>
> dhcp-range=foo-range,192.168.0.0,192.168.0.255,infinite
> dhcp-range=bar-range,192.168.1.0,192.168.1.255,infinite
>
> dhcp-host=02:00:0A:00:00:00,net:foo-range,host1,192.168.0.1,static
> dhcp-host=02:00:0A:00:10:00,net:bar-range,host2,192.168.1.1,static
>
> So what I would have is that host1 would get the fqdn host1.foo and the 192.168.0.1 address, while host2 would be host2.bar and get the 192.168.1.1 address.
>
> Many thanks,
>
> Alberto Cuesta-Canada
> GaaS Team Lead
> Excelian Ltd.
> +44 (0) 7942633361
>
> ________________________________
>
> Date: Wed, 04 Aug 2010 20:02:07 -0700
> From: Paul Chambers <dnsmasq at lists.bod.org>
> Subject: [Dnsmasq-discuss] wildcard subdomains for a DHCP-assigned
>        host
> To: Dnsmasq List <dnsmasq-discuss at lists.thekelleys.org.uk>
> Message-ID: <4C5A29AF.9050802 at lists.bod.org>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>  This may be a dumb question, but I'm no wiser after skimming the man
> page and experimenting a little...
>
> I have a development box I'm using to develop some virtual host stuff.
> I'd like to set up a wildcard subdomain for it. Essentially
> <anything>.dev.foo.bar would resolve to dev.foo.bar's IP address
> (assigned by DHCP). Its IP address does move on occasion, just often
> enough to be irritating/fragile to use an IP directly.
>
> For now, I've worked around it by adding 'address=/dev.foo.bar/<current
> IP addr>' to the config, but that's fragile and seems like a bad idea. I
> could give the box a static IP I suppose, but I much prefer keeping the
> number of static assignments to a minimum. Plus it's a laptop, so I'd
> keep it configured for DHCP and set up a static DHCP assignment based on
> MAC address. Somehow none of this feels very satisfying, just workarounds.
>
> Is there a better way I've missed? If not, is there a reason dnsmasq
> doesn't do this? would it be hard to add? (perhaps support wildcards for
> cname?)
>
> -- Paul
>
>
>
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Tel: +44 (0) 20 7336 9595
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