Le dimanche 9 janvier 2011 15:38:11 Peter Scheie, vous avez écrit :
> Perhaps I should clarify. The setting is a classroom. The thin clients
> are all all plug into a switch to which the LTSP server is also connected.
> The clients are separated from the rest of our network by the server,
> i.e., the server acts as the gateway relative to the clients (yes, I know
> the applications run on the server) Stock setup. Sometimes people bring
> other computers into the classroom, e.g., a laptop running Windows. They
> get an IP, DNS, and GW from the LTSP server's DHCP. But any traffic from
> them has to go through the LTSP server obviously, which means some sort of
> forwarding or masquerading must be enabled on the server. This is the
> part that isn't working. So, it seems to me that something on the server
> needs to be changed so that it NATs/masquerades the traffic from those fat
> clients. They are not running apps on the server, just using its DHCP
> services.
You need to enable ip forward. Add something like this in your
/etc/network/interfaces file, just under your "ltsp" interface
#############
up iptables-restore < /etc/ltsp/nat.conf
up echo 1 > /proc/sys/net/ipv4/ip_forward
#############
Here's simple iptables rules that you can put in a nat.conf file
#############
*nat
:PREROUTING ACCEPT [483:34594]
:POSTROUTING ACCEPT [52:9331]
:OUTPUT ACCEPT [98:17995]
-A POSTROUTING -s 192.168.1.0/255.255.255.0 -j MASQUERADE
COMMIT
#############
Xavier
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