Hello! I had the same problem (with Ubuntu Server), but after dhcpd.conf was configured, DHCP server works fine.
Greetings -- invoke-rc.d: initscript dhcp3-server, action "start" failed. https://launchpad.net/bugs/38221 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
