How to add local configuration to the dnsmasq in 12.04?

[Marius Gedminas]

On Tue, Oct 09, 2012 at 09:44:57AM +0100, Chris Green wrote:
> Ubuntu 12.04 now uses dnsmasq as a local DNS, it gets run by Network
> Manager. 
> 
> Up to 12.04 I had my own dnsmasq installation for managing my LAN, it
> provides local name services and DHCP.
> 
> How can I merge my dnsmasq configuration into the Network Manager one so
> that it is kept through upgrades etc.?  Is there a 'proper' way to do
> this? 
> 
> I know I can simply disable the Network Manager dnsmasq and run my own
> but that seems a decidedly clumsy way to to it.

I did that for a while, and it worked reasonably well.  Merely
installing a system-wide dnsmasq makes NetworkManager stop trying to
spawn its own (or maybe it tries and fails and gives up, but no
user-visible errors ever appeared to me).

The only thing I had to do in addition to the default system-wide
dnsmasq config was to add the option to flush dnsmasq caches when the
network connection went down, because some of my .lan names differed in
different wireless networks:

  sudo -s
  echo clear-on-reload > /etc/dnsmasq.d/clear-cache-on-network-switch
  service dnsmasq restart

Marius Gedminas
-- 
Committee, n.:
        A group of men who individually can do nothing but as a group
        decide that nothing can be done.
                -- Fred Allen
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 190 bytes
Desc: Digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20121009/3efdd6a6/attachment.sig>