The host I am working with has two network adapters and is running Ubuntu Server 12.10.
In an attempt to network two computers I used a cross-over cable as in the old 100Mbps days. After doing this I soon realized that you don't use crossover cables for 1000Mbps networks. Reverting back to setting up a simple network with that specific host resulted in very strange behavior. Both network adapters failed to either acquire an IP address via DHCP or be reachable via a static IP assignment.
This seems really crazy that a cross over cable could of broken both adapters? The second adapter was never even plugged into the crossover cable. Is this possible? Networking on the host worked fine before this.
Attempting to restart the host via:
sudo service networking restart
results in an usually long wait time... also ruled out the cable?
The etc/network/interfaces file is very simple:
auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp