I just installed Ubuntu Server yesterday on my old laptop. I can't ping externally or my router. To start, I figured out that instead of "eth0" I have "em1", and I got it so I now see em1 in ifconfig.
auto em1 iface em1 inet loopback address 192.168.1.120 netmask 255.0.0.0 network 192.168.1.1 broadcast 192.168.1.255
When I ping my router, I get "Destination Host Unreachable"
And when I ping google.com, I get "Unknown host google.com"
And when I ping a computer on this network, I get "Network is unreachable"
I took note of my computer that is connected to this network properly, so I changed /etc/networks/interfaces to
auto em1 iface em1 inet loopback address 192.168.1.120 gateway 10.0.0.1 netmask 255.255.255.0 network 192.168.1.1 broadcast 192.168.1.255
Now I can't see the IP4 address in ifconfig and it says "Network is unreachable" when I ping the router.
Is there something I'm missing? I don't have much experience with networking.
Thanks! After some changes I am able to ping my router and 126.96.36.199. Another problem I had was my router's gateway was actually 10.0.0.1, I forgot because I'm used to 192.168.1.1. For some reason though I have to assign a temporary IP via command line, shouldn't that file do that automatically?
Also, while I can ping 188.8.131.52, I can't ping google.com, even after adding it in the interfaces file. nsloopup isn't working either, it times out.
default via 10.0.0.1 dev em1 10.0.0.0/24 dev em1 proto kernel scope link src 10.0.0.10
spelling error, now I can ping google :D