Merry Christmas

wifi driver.md

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+# Network client
+To configure your network and network-devices it is important to know how they work. Here is a little overview of the network client.
+```bash
+nmcli connection add ifname <INTERFACE> type wifi ssid <SSID> 
+nmcli connection edit <CONNECTION>
+nmcli> goto wifi
+nmcli 802-11-wireless> set mode infrastructure 
+nmcli 802-11-wireless> back 
+nmcli> goto wifi-sec 
+nmcli 802-11-wireless-security> set key-mgmt wpa-psk 
+nmcli 802-11-wireless-security> set psk
+nmcli 802-11-wireless-security> save 
+nmcli 802-11-wireless-security> quit
+```
+
+## Add Wifi Drivers for RTL8812BU
+The RTL8812BU is an often used chip built into USB-Wifi-Modules. It's very useful if you want to use more than the in-build wifi or scan multiple networks parallel.
+```bash
+# get requirements
+sudo apt install git build-essential dkms raspberrypi-kernel-headers
+
+# get scripts
+git clone https://github.com/cilynx/rtl88x2bu
+cd rtl88x2bu/
+
+# Configure for RasPi
+sed -i 's/I386_PC = y/I386_PC = n/' Makefile
+sed -i 's/ARM_RPI = n/ARM_RPI = y/' Makefile
+
+# setup DKMS
+VER=$(sed -n 's/\PACKAGE_VERSION="\(.*\)"/\1/p' dkms.conf)
+sudo rsync -rvhP ./ /usr/src/rtl88x2bu-${VER}
+sudo dkms add -m rtl88x2bu -v ${VER}
+# building will take a while
+sudo dkms build -m rtl88x2bu -v ${VER}
+sudo dkms install -m rtl88x2bu -v ${VER}
+# automatically load at boot
+echo 8812bu | sudo tee -a /etc/modules
+# Plug in your adapter then confirm your new interface name
+ip addr
+```
+
+After the reboot you should find a new network device when plugged in. Check it with `ifconfig`
+
+# Add Wifi Driver for RTL8812AU  
+Alpha builds very good Wifi antennas that support much more software tweaks, monitor mode and on. (Those drivers are already included in Kali Linux.) For example i use the Alpha AWUS036ACH Module.
+
+Check if the driver already exists
+```bash
+modprobe 8812au
+systemctl restart network-manager
+```
+As no errors appear, everything should be alright and your network manager already knew the driver. 
+
+If not get it now:
+```bash
+# get requirements
+sudo apt install git build-essential dkms raspberrypi-kernel-headers
+
+# get scripts
+git clone https://github.com/gnab/rtl8812au.git
+cd rtl8812au/
+
+# Configure for RasPi
+sed -i 's/I386_PC = y/I386_PC = n/' Makefile
+sed -i 's/ARM_RPI = n/ARM_RPI = y/' Makefile
+
+# setup and install
+sudo make dkms_install
+
+# automatically load at boot
+echo 8812au | sudo tee -a /etc/modules
+# Plug in your adapter then confirm your new interface name
+ip addr
+```
+
+# change interface modes
+Many tools can set the interface modes on their own. But you can do or re-do that with those little commands:
+- Set interface down `sudo ip link set <interface> down`
+- Set monitor mode `sudo iwconfig <interface> mode monitor`
+- Set interface up `sudo ip link set <interface> up`