- [Instructor] Let's go over airmon or airmon-ng.
Airmon is a tool within the aircrack suite
that can be used to enable monitor mode
on wireless interfaces.
You can also use it to go back
from monitor mode to manage mode.
When you use airmon to put a wireless adapter
into monitor mode, it will automatically check
for processes running on the systems that can interfere
with the monitoring process.
However, also you do, you can do this manually
with the, you know, command airmon-ng check, right?
So airmon-ng check command
as I'm actually demonstrating here.
Here you can see three processes that may actually
cause some trouble:
the network manager, the DHCP client,
and the wpa_supplicant.
You can kill them all
with the airmon-NG check kill command.
You can do a check again.
Now you don't see any conflicting processes here.
So let's start to put the wireless adapter
in monitoring mode with the airmon-NG start command.
And then you specify the wireless adapter
which in my case is wlan0.
Now to check the status
you can just type airmon-ng by itself and press enter.
Here you can see that wlan0 is in monitoring mode
and that I'm using an adapter with a Atheros chip set.
Now let me start the network manager again.
And if you do an iconfig,
you can see wlan0 mon as my monitoring interface.