Networking command lines

One of the main strong point on Linux, is that we are not forced to use a graphic interface to perform operations.

That can be view as a draw back but to perform operations faster and remotely, that's really useful.

Here are a few commands to manage network intefaces on Ubuntu :

• To print configuration

$ ifconfig

• To start or shutdown a specifcnetwork interface  (e.g. eth0 )

$ sudo ifup eth0
$ sudo ifdown eth0

• To get a dhcp address

$ sudo dhclient

• To restart all network interfaces

$ sudo /etc/init.d/networking restart

These commands used to work ... but do not seem to work anymore with v. 14.04 ! ? !