Setting Up NetworkManager on ArchLinux

If you're having trouble getting your network connection up and running on ArchLinux, this guide will walk you through the process of setting up NetworkManager.

First, start by ignoring any errors about unreachable D-Bus. Then, start the NetworkManager service using the following command: `$ sudo systemctl start service`. Next, start the wpa_supplicant service: `$ sudo systemctl start wpa_service`.

Once these services are started, you'll need to turn off your network interface controllers. In my case, this means disabling eth0 and wlan0.

To allow your user to manage the network connection, add your username to the network group: `$ gpasswd -a USERNAME network`. Then, stop the dhcpcd service if you're using it: `$ sudo systemctl stop dhcpcd`.

Next, make sure NetworkManager starts automatically when your system boots by enabling the service: `$ sudo systemctl enable service`. Finally, stop the network daemon: `$ sudo rc.d stop network`.

For a more secure setup, create a new file in `/etc/polkit-1/localauthority/50-local.d/` with the following contents:

```

# For more details on rc.conf see rc.conf(5).

AEMONS=(hwclock syslog-ng crond acpid dbus networkmanager

# Most of rc.conf has been replaced by various other configuration

# /etc/rc.conf - configuration file for initscripts

Before applying any of the changes, the contents of /etc/rc.conf will look similar to this:

It is very important to place the networkmanager after dbus and before any network-services like ntpd.

```

Install the necessary packages by running:

```

$ sudo pacman -S gnome-keyring

$ sudo pacman -S network-manager-applet

$ sudo pacman -S networkmanager

$ sudo pacman -S wireless_tools

$ sudo pacman -S wpa_supplicant

```

To check the current state of your network devices, use the following command: `$ ip link`. If your device is not listed, it may be a USB device, so try using `lsusb` instead.

You can identify your networking devices by running:

```

$ ip addr show

```

Please note that some parts of this guide were taken from the Arch-Wiki-Networkmanager and Arch-Wiki-Beginners-Guide. I highly recommend reading those two articles for more information on setting up NetworkManager.

Finally, check the configuration of your `/etc/hosts` file to ensure it is valid:

```

127.0.0.1 localhost.localdomain yourHostname

```

That's it! With these steps, you should now have NetworkManager set up and running on your ArchLinux system with GNOME3.

Archlinux networkmanager