Hi there, I am a complete linux noob. I have an internet cafe and we have a linux box running as our dhcp server which we had configured to our spec by an expert, who we can no longer get in contact with!

The setup is such that the internet comes in to the linux box straight from the router. Then we have two eth, eth0 should then hand out ip's on a 10.0.1.X range for my permanent cafe machines and eth1 shoudl hand out on a 10.0.2.X range for laptops that come and go.

This was running fine and i was impressed with how it all went. However one day a while back i came in and it was no longer working.

Now the setup still works fine if you manually set the ip's on either range. Just the dhcp will no longer give them out.

I have tried killing and restarting the dhcpd, and rebooting the whole linux box many times.

Strangely dhcpd says its running in the process list but there seems to be no transfer on any udp ports is this correct?

I really have no knowledge and can just about cope setting manual ips each time but its getting boring now! Sometimes i get 10 laptops a day i have to configure. I would just like dhcp to work again.

Any help would be appreciated.

I would suggest u to have a look at some DHCPd HowTo, there are loads of them just google. You should check how your /etc/dhcpd.conf looks (maybe it was rewritten during upgrading dhcpd to a new version?)

A good network/System administrator will always backup existing working config files before an upgrade, whether or not the old style configuration format is phased out of the new release, so that if needed to, can always revert back to the old version, and have it still work, while configuring the new configs for the newer version.