restrict DHCP addresses?

Joseph Hartman jlhartman at gmail.com
Sat Mar 20 01:02:05 GMT 2010


Hi all, I've got the new lab up and running, 30 P4 w/ 512 MB RAM on an 8
core Xeon server w/ 6 GB RAM running Karmic, works like a charm. Got all the
clients shutting down at 7, server shuts down at 7:30, I even got iTalc up
and running on the server, a little slow with the demo mode, craps out from
time to time, but the "lock screen" works great and impressed the pants off
the faculty after our meeting on Wednesday. Couldn't have done it without
y'all, so thanks very much.

So here's my question:

Is there a way to restrict the number of IP addresses the server assigns to
match the number of clients? For example, if I have 6 clients, can I tell
the server to assign just 192.168.0.1 - 192.168.0.6? And can I then use
those IP addresses in my lts.conf to set up autologin or guestlogin?

Right now I've got all the clients in my lts.conf under their MAC addresses
and "LDM_GUESTLOGIN = True" and this works perfectly. The kids just click
the button, and they are logged in. No problems.

Now that I'm setting up classroom servers though, I would prefer to just
create an image of a server and clone it out to the rest, but I can't do
that if I have to find the MAC addresses of all the clients in each person's
room. It would be easier to just set up guest logins for a few different IP
addresses, if possible.

Thanks in advance for any advice. Best Regards, -Joe
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