nm4n00bz (Network Manager 4 n00bz)

A tool for connecting to/switching wifi networks and or managing Ad Hoc through CLI . Tested on Raspberry Pi Zero W.

Installation/Usage

• git clone https://github.com/B3ND1X/nm4noobz
• cd nm4noobz
• sudo chmod +x run.sh && chmod +x install.sh
• sudo ./install.sh
• sudo ./run.sh

Connecting to your ad-hoc network from another Raspberry Pi

If you have more than one Raspberry Pi, you can use one to serve up the ad-hoc network as shown above, and the other(s) to connect to the network as clients. To do that, you'll want the /etc/rc.local file on your client(s) to look like this:

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.

# Make me a client on the wireless ad-hoc network being served by Raspberry-Pi-1
iwconfig wlan0 mode Ad-Hoc
ifconfig wlan0 essid Raspberry-Pi-1

exit 0

Now when you open the network preferences on your desktop or laptop computer, you should see Raspberry-Pi-1 as a wifi network you can join. From there, you can connect to the Raspberry Pi using ssh:

% ssh pi@192.168.2.2

Important note

If you have an /etc/udhcpd.conf on your client, you should make sure that it is empty (so that the client is not trying to serve up an ad-hoc network). You should also make sure that the /etc/network/interfaces on the Raspberry Pi has no specifications for wlan0 (since those are being specified in /etc/rc.local). Otherwise you will likely see a different IP address (169.254....) instead of the expected 192.168.2.2.

WEP Key

If you would like to prevent anyone in range from connecting to your ad-hoc network, you can add a WEP key by adding this line:

iwconfig wlan0 key 3b205742624039762d586f4f3e

under

ifconfig wlan0 essid Raspberry-Pi-1

where 3b205742624039762d586f4f3e is your key. This key must be a hex-key and you can generate one here: http://www.andrewscompanies.com/tools/wep.asp Use a 128 bit key. A 256 bit key does not seem to work.

Uninstall

sudo ./uninstall.sh

Changelog

v 1.0

• Initial release

v 1.0.1

• Updated installer script to make a backup /etc in case of damage and you need to revert to original.

v 1.0.2

• Bug fixes
• Code clean up

v 1.0.3

• Shows if you are connected to wifi, if so what network and what ip you have. Also displays if NetworkManager.service is active and if dhcpcd.service is active or not.

Screenshots

Troubleshoot

• If for any reason you run into problems use ./uninstall it should revert any changes made by nm4n00bz.

• If however, this did not fix your issue. nm4n00bz makes a backup of your /etc folder before installation. To revert your files to their original state before installation, please put your SD card from your Pi to your PC. Then open the rootfs of your Pi and open /etc inside the root directory. Then copy /etc/etc.tar.gz, and paste it in root directory. Then delete /etc from root and unzip etc.tar.gz in the root directory. After delete etc.tar.gz from your root directory. Pop your SD card into your Pi and power on the device. Everything should be back to normal. (PLEASE NOTE: by doing this, any changes you made to /etc after installation of nm4n00bz will revert back to before installation, not just for nm4n00bz but any changes made. Proceed with caution.)

• If WiFi networks are not being listed or you are unable to connect to a network:

add this

[device]
wifi.scan-rand-mac-address=no

to /etc/NetworkManager/NetworkManager.conf then run

sudo systemctl restart NetworkManager

Credits

This is a somewhat forked/modified version of https://github.com/simondlevy/RPiAdHocWiFi/