Edubuntu and Wireless Internet Connection

[Steve Jackson]

I think I have seen something similar, a long delay caused by waiting for a
DNS time out. I'm assuming you have a wired network for the terminal(s), and
that the wireless interface you describe is for the server to connect to the
internet. Make sure /etc/hosts has correct 127.x.x.x entries for the server
itself, and that the server is using all static addresses, with the gateway
address specified in /etc/network/interfaces and the DNS address specified
in /etc/resolv.conf. It shouldn't have been necessary to disable DHCP on the
wireless router.

Upstream wireless on a LTSP server generally works better if the wireless
settings are managed using /etc/network/interfaces. I uninstall
network-manager from Edubuntu LTSP servers. I also find that it is necessary
to delay bringing the wireless interface up until late in the boot process,
by not including "auto wlan0" (or whatever your interface is called) in
/etc/network/interfaces, and adding "ifup wlan0" to /etc/rc.local, after
"sleep 30" in some cases. This may be because I use WPA on the wireless
network - I never investigated the reason, I just found that this delay
makes it work.

If this doesn't help, perhaps you could clarify your setup for us - post the
contents of /etc/network/interfaces, /etc/resolv.conf, and /etc/hosts for
starters, and the output from 'route'.
Steve

On 29/01/2008, Ola Engström <erik-o.engstrom at telia.com> wrote:
>
> I'm experimenting w. Edubuntu 7.10 using vintage Compaq Deskpros (1999).
> Installing up the server works fine. Booting the server into Gnome and
> also booting the thin and only client goes just fine.
> When I attach and after starting the Server configure the wireless card
> that connects to a wireless router that via an ADSL modem connects to
> the internet trouble starts. The DHCP server on the wireless router has
> been disabled.
> After reboot of the server - it's not possible to bring up the Gnome
> desktop. I get the "login beep" and then a light yellow-brown screen
> similar to the famous blue one. I've found workarounds of sorts but they
> are clumsy - to say the least:
> A1. When the yellow-brown screen appears. Log in to a console and bring
> down the wireless interface. When Gnome appears start a terminal window
> and A2. use ifdown to bring the interface down once again A3. use ifup
> to bring the interface up. And presto internet conncetions work.
> B1 Do A1 in rc.local instead and then do A2 and A3.
>
> Using ifconfig doesn't bring up the necessary routing table.
>
> Suggestions for a better solution will be appreciated - naturally.
> /ola
>
>
>
>
>
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