Host declaration for multiple hardware interfaces and multiple

[Rainer Stumbaum]

Hi,
thanks for the quick reply.

We want to use http://www.webmin.com to administer the dhcpd.conf - so dhcpd.conf is already like a database ;-)...
The inheritance from the filestructure is managed by webmin - and we require that inheritence to hand out different filename options to servers in the same subnet using groups...

Regarding the problem:
We do not mind to have multiple entries for one host with different host declarations - but we want to reduce the risk of typos. 

And that is why we are looking for a way to cut some part of the host declaration using dhcp-eval "scripting" to get the ddns-hostname right.

ddns-hostname = "host-decl-name, but only up to the first dot"

Best regards
Rainer



--- Simon Hobson <dhcp1 at thehobsons.co.uk> schrieb am Mi, 30.3.2011:

> Von: Simon Hobson <dhcp1 at thehobsons.co.uk>
> Betreff: Re: Host declaration for multiple hardware interfaces and multiple
> An: "Users of ISC DHCP" <dhcp-users at lists.isc.org>
> Datum: Mittwoch, 30. März, 2011 09:13 Uhr
> Rainer Stumbaum wrote:
> 
> > subnet a {
> >   ddns-domainname
> "access.example.org";
> >   ddns-hostname = host-decl-name;
> > ...
> >         host test01 {
> >        
>     hardware ethernet 00:50:56:8e:5e:c1;
> >        
>     fixed-address 10.20.30.21;
> >        
>     }
> > ...
> 
> You can forget anything like that - host declarations are
> global in scope irrespective of where you define them.
> However, they also have inheritance based on where they are
> defined which can lead to strange effects where a host gets
> (for example) the wrong routers !
> 
> I think we've only ever had one enquiry on here where that
> latter effect was desired, so just keep the host
> declarations global.
> 
> But going back to the original problem. If you keep the
> data in a database, then your can have your script generate
> the hostname declarations at the same time as the host
> declaration. Store the hostname you want used, and have your
> script tack on some subnet specific suffix for the host
> declaration.
> 
> -- Simon Hobson
> 
> Visit http://www.magpiesnestpublishing.co.uk/
> for books by acclaimed
> author Gladys Hobson. Novels - poetry - short stories -
> ideal as
> Christmas stocking fillers. Some available as e-books.
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