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I believe the default configurations will conflict, but you can ensure
they behave by changing a few settings.

The nova launched dnsmasq(s) will bind to IP(s) in the configured fixed
range, while ISC DHCP/Bind9 will, by default, bind to all IPs.

If you configure both of those to bind to the servers "normal" IP rather
than 0.0.0.0, they should play nice.

Kiall Mac Innes
HP Cloud Services - DNSaaS

Mobile:   +353 86 345 9333
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On 24/03/13 17:19, Lorin Hochstein wrote:
> In my current setup, my cloud controller also runs cobbler. I have
> cobbler set up to use ISC's DHCP server and to use BIND9 for DNS
> (although I'm not actually use the DNS server for anything). Since I'm
> running with nova-network and not with multi-host, my controller node
> also runs nova-network, and consequently, dnsmasq.
> 
> Will the dnsmasq services that nova-network launches conflict with isc
> dhcp and bind9 that cobbler uses? Just to be safe, I've turned off the
> isc dhcp server and bind9 before running nova-network, but I was curious
> if they could actually coexist on the same node.
> 
> Lorin
> 
> -- 
> Lorin Hochstein
> Lead Architect - Cloud Services
> Nimbis Services, Inc.
> www.nimbisservices.com <http://www.nimbisservices.com>