[K12OSN] dhcpd failed

Almquist Burke balmquist at mindfirestudios.com
Thu May 29 02:29:52 UTC 2008

Hash: SHA1

On May 28, 2008, at 5:57 PM, Marc Fromm wrote:

> What does it mean to put the clients behind the ltsp server?
> If I do the 2 nic install how do the clients know to send their dhcp
> requests to the ltsp server?
> Can I convert my current setup to the 2 nic or is it better to
> reinstall?

A "Two NIC" setup is when your LTSP server is plugged into the  
school's network on one side (on eth0 for example) and on the other  
side is plugged into a switch that only goes to the thin clients  
(eth1 in this case). That way your thin client's DHCP requests never  
reach the school's DHCP server. Their traffic has to travel though  
the LTSP server. Here's an example.

                                     -----  LTSP server ---- Thin  
                                   /                  |
Internet --- Firewall --- Schools servers (DHCP, File,  
Authentication, Etc.)
                                   \                  |
                                      \ Other Desktop PCs

The thin clients are segmented on their own network, separate from  
the rest of the school. Only the LTSP server is plugged into the rest  
of the network on the other network card.

This works well if all the thin clients are in the same room as the  
server (like in a lab, or you have one "server" per classroom). If  
the clients are scattered about with only a couple in each location  
and have to be plugged into the school's network, then the alternate  
DHCP port is probably easier. 
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