I just installed Server 12.04 onto a spare desktop. Everything is working well except when I try to ssh using my external ip address.
My /ect/network/interfaces file:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.0.5
netmask 255.255.255.0
broadcast 192.168.0.255
network 192.168.0.0
gateway 192.168.0.1
dns-nameservers 192.168.0.1
I have tried to use dhcp as well, but still no luck. I know the server can connect to the outside because it can update, but when I try to ping an outside ip address I receive no response packets. I've run older ubuntu servers before, but I've never ran into this problem. I can ssh in using my internal ip addresses, so normally I would think it was a problem with port forwarding, but because of the lack of response pings I think it is a configuration error.