I am right now using ubuntu 12.04 64bit, I have a small Ethernet net cable. I read somewhere that you can share your wifi from ubuntu to other pc by some editing in network settings.
Here is what I tried (http://blog.arvixe.com/how-to-share-wireless-connection-via-ethernet-cable-in-ubuntu-to-any-device/)
I tried it and it even showed the light beeping in both sides Btw my other PC has windows 7 64bit. and on there it just didn't connect. It just showed "Identifying…" and "no internet connections"
Best Answer
This is what worked for me:
click on the network icon on the top right of the screen and click on
edit connections
go into the
wired tab
and click onadd
Name it whatever you want, i normally name it
Share
Go into the
ipv4 settings
tab and selectshared to other computers
in the "method" drop-down list.Save the connection.
Now, making sure that you are connected through wireless network, connect both computers with the ethernet cable, then click on the network icon on the top right of the screen and select the
Shared
connection we just created (or whatever you named the connection). So at this moment you should be connected to both, your wireless connection through the wireless interface, and to the "Shared" connection we just created on the wired interface.