NetworkManager is a daemon that sits on top of libudev and other Linux kernel interfaces (and a couple of other daemons) and provides a high-level interface to network interface configuration and setup and is accessible via dbus to apps.

Installation

apt-get

1. install network-manager
sudo apt-get install network-manager

2. to install the GNOME applet/indicator:
sudo apt-get install network-manager-gnome

Configuration

/etc/network/interfaces

1. reload /etc/network/interfaces
sudo service networking restart

or

sudo service network-manager restart

Commands

Click here to expand...

https://help.ubuntu.com/community/NetworkManager

1. start network-manager

• using upstart

  sudo start network-manager

• using systemd

  sudo systemctl start NetworkManager.service

  Enable restarting the network manager when the system reboots

  sudo systemctl enable NetworkManager.service

2. stop network-manager

• using upstart

  sudo stop network-manager

  Create an override file for the Upstart job:

  echo “manual” | sudo tee /etc/init/network-manager.override

• using systemd

  sudo systemctl stop NetworkManager.service

  Disable network manager (permanently) to avoid it restarting after a reboot

  sudo systemctl disable NetworkManager.service

3. restarting

   sudo /etc/init.d/networking restart