Well, according to this
in order to share a connection with any 12.04 spin I need to setup a resolv.conf, with the domain and nameservers. I do think this little guide was made for MATE and I cant find the nameservers with their instructions (Im using Cinnamon).
Are there any alternatives to finding the nameservers?
Using Linux Mint 13, Maya 64-Bit Cinnamon.
PS: I am using nano rather than pluma if that makes any difference.