Connect a Laptop at a campus Network
 

I want to connect my laptop to network campus.Someone told me that i need to connect to the dhcp server.But i dont know to find the address of the server.Someone told me to give "dhcp cd".How can i solve this matter.My NIC works great.Furthermore how can i save a configuration(e.g. if i am going to another campus) so that i can load each time the configuration i want.E.g. like doing up/down to different ethx.
Any information appreciated.

As root:
/sbin/dhcpcd eth0

This will configure the NIC from the DHCP server automagically, assuming you have dhcpcd vs dhclient.

All you have to do is run this whenever you need to (at different campus) or have it run at startup.

If your campus is like mine, the server will automatically assign you an IP address.