Mailing List Archive: OpenStack: Dev

DHCP and DNS service with FlatDHCPManager networking

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jon at jonproulx

Jul 19, 2012, 10:11 AM

Post #1 of 3 (194 views)
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DHCP and DNS service with FlatDHCPManager networking

Hi All,

I'm running essex with FlatDHCPManager (in multi_host mode should that
matter) on Ubuntu 12.04

OpenStack is very happily running DNS and DHCP on the private network
side but I can't for the life of me figure out where these services
are running or how to configure them.

The things I'd like to do that made me look for these are
1) change the domain name of the internal network from the default
novalocal (there may well be a better way to do this)
2) try to enable PXE booting (preferably from an existing PXE server
on our public side)
3) add some name servers and search domains to the info returned but
the dhcp server

anyone have any pointers on these?

Thanks,
-Jon

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xavier.limodin at xavier-office

Jul 19, 2012, 12:23 PM

Post #2 of 3 (182 views)
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Re: DHCP and DNS service with FlatDHCPManager networking [In reply to]

Hi,

You can use your own Dnsmasq config file,
Install dnsmasq package,
update-rc.d dnsmasq disable to avoid conflicts

/etc/nova/nova.conf
--dnsmasq_config_file=/etc/dnsmasq.conf

2012/7/19 Jonathan Proulx <jon [at] jonproulx>

> Hi All,
>
> I'm running essex with FlatDHCPManager (in multi_host mode should that
> matter) on Ubuntu 12.04
>
> OpenStack is very happily running DNS and DHCP on the private network
> side but I can't for the life of me figure out where these services
> are running or how to configure them.
>
> The things I'd like to do that made me look for these are
> 1) change the domain name of the internal network from the default
> novalocal (there may well be a better way to do this)
> 2) try to enable PXE booting (preferably from an existing PXE server
> on our public side)
> 3) add some name servers and search domains to the info returned but
> the dhcp server
>
> anyone have any pointers on these?
>
> Thanks,
> -Jon
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to : openstack [at] lists
> Unsubscribe : https://launchpad.net/~openstack
> More help : https://help.launchpad.net/ListHelp
>

jon at jonproulx

Jul 19, 2012, 7:14 PM

Post #3 of 3 (190 views)
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Re: DHCP and DNS service with FlatDHCPManager networking [In reply to]

On Thu, Jul 19, 2012 at 3:23 PM, Xavier Limodin
<xavier.limodin [at] xavier-office> wrote:
> Hi,
>
> You can use your own Dnsmasq config file,
> Install dnsmasq package,
> update-rc.d dnsmasq disable to avoid conflicts
>
> /etc/nova/nova.conf
> --dnsmasq_config_file=/etc/dnsmasq.conf

Thanks for the pointer that got me what I need.

Since it only requires the config file it's probably best not to
install the package, but just write out a config from online
documentation and avoid even having a duplicate service someone could
try and start up in the future.

-Jon

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