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If you are using neutron with overlapping IPs, you will run into problems where tenants can modify another tenants address (overlapping IPs).  We are planning to use designate where tenants manage f/rDNS for floating IPs, and remain using dnsmasq in the tenants dhcp-agent’s network namespace.

When I was at AT&T we locally patched neutron to use the name passed to `nova boot`.  This is rather hackish.  I believe there are a few bugs open RE this/your issue.  Here is one such report [1].

[1] https://bugs.launchpad.net/neutron/+bug/1175211

John  


On Monday, March 24, 2014 at 6:00 AM, George Shuklin wrote:

> Right now designate is promoting to OS core (in icehouse).  
> But last time I run it (~month ago), it was bit messy. Hope they clean it up prior icehouse release.
>  
>  
> On 03/24/2014 02:56 PM, Alexandra Kisin wrote:
> > Do you have an experience with Designate installation and configuration on OpenStack ?  
> >  
> >    
> > Alexandra Kisin
> > Servers & Network group, IBM R&D Labs in Israel
> > Unix & Virtualization Team  
> >  
> >  
> >  
> > From:        George Shuklin <george.shuklin at gmail.com> (mailto:george.shuklin at gmail.com)  
> > To:        Alexandra Kisin/Haifa/IBM at IBMIL  
> > Date:        03/24/2014 02:47 PM  
> > Subject:        Re: [Openstack-operators] Neutron + dnsmasq setup  
> >  
> >  
> >  
> > I never hear about neutron to provide own DNS service. Without it resolving one hostname from other host is impossible.  
> > There is separate project for OS to manage DNS - designate.  
> > On Mar 24, 2014 1:53 PM, "Alexandra Kisin" <KISIN at il.ibm.com (mailto:KISIN at il.ibm.com)> wrote:  
> > I'm trying to ping from one VM to another using the hostnames which I've defined during the provisioning process.  
> > And these hostnames are not recognizable because they are not recorded by dnsmasq . By default the name of the VM which is recorded by dnsmasq is host-ip of the VM.  
> > It is located at /var/lib/neutron/dhcp/.../host file.  
> >  
> > Alexandra Kisin
> > Servers & Network group, IBM R&D Labs in Israel
> > Unix & Virtualization Team  
> >  
> >  
> >  
> > From:        George Shuklin <george.shuklin at gmail.com (mailto:george.shuklin at gmail.com)>  
> > To:        Alexandra Kisin/Haifa/IBM at IBMIL  
> > Date:        03/24/2014 01:43 PM  
> > Subject:        Re: [Openstack-operators] Neutron + dnsmasq setup  
> >  
> >  
> >  
> > How do you query DNS name?  
> > On Mar 23, 2014 6:18 PM, "Alexandra Kisin" <KISIN at il.ibm.com (mailto:KISIN at il.ibm.com)> wrote:  
> > Neutron DNS name does not match VM hostname  
> > On our Havana openstack running on redhat we're seeing a situation where VM hostname doesn't match the DNS name.  
> > The default hostname which is given by dns is "host-ip-address" and not the real hostname of the VM.  
> >  
> > Is there any fix that can resolve this problem ?  
> >  
> > Thank you.  
> >  
> > Alexandra Kisin
> > Servers & Network group, IBM R&D Labs in Israel
> > Unix & Virtualization Team
> > _______________________________________________
> > OpenStack-operators mailing list
> > OpenStack-operators at lists.openstack.org (mailto:OpenStack-operators at lists.openstack.org)
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
> >  
>  
> _______________________________________________
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>  


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