How to get hostnames via DHCP with a "classic" network configuration ?

[Eliezer Croitoru]

On 31/10/2011 17:36, Nicolas Kovacs wrote:
> Hi,
>
> I've just setup a small LAN consisting of a server running Ubuntu 10.04
> Server and a bunch of clients running Ubuntu 11.10.
>
> On the server I installed dhcp3-server, and here's the relevant
> configuration :
>
my question is.. why to use the hostname option?
just use the hostname file.. it's already a static host names.

Regrads
Eliezer

> --8<----- /etc/dhcp3/dhcpd.conf ----------------------------------
> # /etc/dhcp3/dhcpd.conf
> authoritative;
> default-lease-time 86400;
> max-lease-time 86400;
> option broadcast-address 192.168.2.255;
> option subnet-mask 255.255.255.0;
> option routers 192.168.2.1;
> option domain-name-servers 192.168.2.1;
> option domain-name "presbytere.montpezat";
>
> subnet 192.168.2.0 netmask 255.255.255.0 {
> range 192.168.2.100 192.168.2.200;
> }
>
> host alphamule {
> hardware ethernet 00:19:DB:44:C5:94;
> fixed-address 192.168.2.2;
> option host-name "alphamule";
> }
>
> host bernadette {
> hardware ethernet 00:0D:61:A6:E7:1E;
> fixed-address 192.168.2.3;
> option host-name "bernadette";
> }
>
> host raymonde {
> hardware ethernet 00:20:Ed:B8:E8:EC;
> fixed-address 192.168.2.4;
> option host-name "raymonde";
> }
>
> host balthazar {
> hardware ethernet 00:19:E0:83:3A:C1;
> fixed-address 192.168.2.5;
> option host-name "balthazar";
> }
>
> host lifebook {
> hardware ethernet 00:0B:5D:46:F2:10;
> fixed-address 192.168.2.6;
> option host-name "lifebook";
> }
>
> host bebette {
> hardware ethernet 00:27:19:F1:BC:3A;
> fixed-address 192.168.2.7;
> option host-name "bebette";
> }
> --8<--------------------------------------------------------------
>
> On a stock Ubuntu install on the client side, I simply remove any
> hardcoded hostname reference, e. g.:
>
> # rm /etc/hostname
>
> And then I edit /etc/hosts down to a one-liner that looks like this:
>
> 127.0.0.1 localhost.localdomain localhost
>
> This setup works very nice.
>
> Now until Ubuntu 10.04, I could easily remove NetworkManager and use the
> "classic" network configuration with /etc/network/interfaces, like this:
>
> # apt-get autoremove --purge network-manager*
> # rm -rf /var/lib/NetworkManager
>
> And then add an according stanza in /etc/network/interfaces:
>
> auto eth0
> iface eth0 inet dhcp
>
> And that was it. Clients would get their hostnames very well in this setup.
>
> Only starting from Ubuntu 10.10 (or 11.04?), things changed, and when I
> replace NetworkManager by a "classic" setup, I can't get client machines
> to get their hostnames from the server.
>
> This is quite annoying, since more often than not, I have to setup
> networks in schools or public libraries, where it's much better to
> manage everything centrally.
>
> Any idea how I could get this to work?
>
> Cheers from France,
>
> Niki Kovacs
>