Edubuntu networking problem

[Mathieu Trudel-Lapierre]

On Thu, Aug 4, 2011 at 4:57 PM, Ralph Pichie <thevillagegeek at gmail.com> wrote:
> New installation of Edubuntu 11.04 with LTSP on AMD Athlon
>
> The Ethernet connection works fine when running from DVD, but not
> after installation.
> Network Manager cannot create a working connection.
> To connect, the user must run dhclient with root privileges.

NetworkManager ignores interfaces which are configured in
/etc/network/interfaces, in other words, precisely what's below.

>
> Below is the current content of /etc/network/interfaces
>
> auto lo
> iface lo inet loopback
>
> auto eth0
> iface eth0 inet dhcp
>  address 192.168.0.254
>  netmask 255.255.255.0
>

If you remove the entries pertaining to eth0 from the file (so the
auto eth0 and iface eth0 lines above), NetworkManager will start
controlling that device again... but you'll need to reboot or restart
NetworkManager.

> Could the installation of Linux Terminal Server Project have caused
> this? During the installation, I opted to include LTSP and there was a
> list with the default option of eth0, the only network device I had
> then.

It could have, this might be in the list of things done in the installation.

>
> I presume that as a terminal server it would need a static address,
> but I'm not an expert in that - yet. If that is the problem, how do I
> correct it? Do I add another network card and make LTSP use that so
> the other can be set to use DHCP and start at boot? Or do I remove
> LTSP and hope that will solve the problem? Do I start yet another wipe
> and install, this time without LTSP?

Depends on network design. If your dhcp server on the network
consistently gives your server the same IP, it's not much of an issue
(nor is it if you use DNS, etc.). You don't need to reinstall though.

Regards,

Mathieu Trudel-Lapierre <mathieu.tl at gmail.com>
Freenode: cyphermox, Jabber: mathieu.tl at gmail.com
4096R/EE018C93 1967 8F7D 03A1 8F38 732E  FF82 C126 33E1 EE01 8C93