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

On Mon, 31 Oct 2011 16:36:01 +0100, Nicolas Kovacs wrote:

> 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

Is there a reason why you're using dhcp3?
If you really have to go with dhcp3 "dynamic dns" is the solution.
But for a home network it might be too complex.

I was at the same point as you some time ago. I gave up with dhcp3 and
dynamic dns and I went for dnsmasq [1].
It combines dns and dhcp and is MUCH easier to configure.


Cheers
Ramon


[1] http://thekelleys.org.uk/dnsmasq/doc.html


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

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




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

Le 31/10/2011 20:00, Ramon Hofer a écrit :

I was at the same point as you some time ago. I gave up with dhcp3 and
dynamic dns and I went for dnsmasq [1].


Well, the question was more for the client side, not for the server
side. But since you ask, yeah, I know dnsmasq, but I'm doing things with
Bind (locally) that dnsmasq is not designed for.


Anyone has a solution for my problem, besides the guy that suggested
static configuration on all the clients ? :o)


cheers,

Niki Kovacs

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