Re: Adding openresolv to base

[Roy Marples <roy%marples.name@localhost>]

Michael van Elst wrote:
> On Wed, Mar 25, 2009 at 07:43:56AM +0000, Roy Marples wrote:
> > Michael van Elst wrote:
> > > roy%marples.name@localhost (Roy Marples) writes:
> > >
> > > > By adding another file you have increased complexity. If both files 
> > > > are present, which should be used? If both, in what order? What if I 
> > > > want my static config to appear somewhere in the middle? Should we 
> > > > have a third file to configure this?
> > > I can tell the ISC dhclient to produce the configuration I need,
> > > even making appear something somewhere 'in the middle'. I can
> > > also hook in a script that configures forwarders to my local
> > > caching nameserver instead of changing /etc/resolv.conf.
> > Can you do the same for PPP and VPN clients whilst dhclient is running?
>
> I don't know what arbitrary PPP and VPN clients can and can't do.

We can assume they supply DNS information to go in /etc/resolv.conf for 
the purposes of this discussion.

> > IF the stock dhclient supported DHCP on >1 interface could it still work?
>
> The stock dhclient supports multiple interfaces. Obviously it
> doesn't know how to handle multiple global configurations by
> itself. Like resolver addresses or, more important, default routes
> or any other option the DCHP server could send you.

This is then a failing of dhclient. But think of resolvconf as the 
interface to handling multiple global DNS configurations.

> Saying that... some software that handles resolver configuration
> for multiple 'configuration clients' is surely a nice thing,
> but it isn't even half a solution.

What then is the solution?

Thanks

Roy