How to install WiFi adapter drivers in Kali Linux

Working in the operating system Kali Linux Often begins with the need to access a wireless network, whether for traffic analysis, security auditing, or simply internet access. However, unlike desktop distributions, they don't always support all existing network card models out of the box. This is especially true for USB adapters with chips. Realtek or MediaTek, which require manual compilation of kernel modules. Without the correct driver, the device may not be detected by the system at all or may operate in an inefficient mode.

The installation process depends on the specific chip model your device is based on. In some cases, a standard repository update is sufficient, while in others, you'll need to download the source code from GitHub and assemble it manually. It's critical to know your device's exact Vendor ID and Product ID to avoid wasting hours installing incompatible software. In this article, we will examine all current methods for solving this problem, covering both automatic and manual configuration methods.

Identifying a wireless adapter

The first step is always to accurately determine the model of your network interface. The system should at least "see" the physical connection of the device, even if it isn't yet functional in software. For this, use the utility lsusb, which displays a list of all connected USB devices. If you're using the built-in module, you can use the command lspciIn the resulting list, you need to find a line containing manufacturer names such as Realtek, Ralink, or Atheros.

Once you've received the list of devices, pay attention to the IDs, which look like a pair of hexadecimal numbers separated by a colon (e.g., 0bda:8812). These numbers are the key to finding the correct driver. The same chip is often used in adapters from different brands, so you should search for the driver by the chip ID, not the brand name on the housing.

• 🔍 Connect the adapter and enter in the terminal lsusb to view the list.
• 🔍 Write down the device ID (Vendor:Product) for further searching in repositories.
• 🔍 Use the command iwconfigto check if the wireless interface (usually wlan0) has appeared.
• 🔍 If the device is not displayed even in lsusb, check its functionality on another OS.

Sometimes the system may detect a device but assign it the wrong default driver. In such cases, you must forcefully remove the offending module before installing the correct one. It's also worth remembering that some modern adapters require kernel header files (linux-headers) for successful compilation.

⚠️ Important: If you're using a virtual machine (VirtualBox or VMware), make sure the USB device is forwarded to the Kali guest OS and not captured by the host system. Otherwise, the drivers won't install.

Preparing the system and installing kernel headers

Before compiling any modules, you must ensure that all the necessary build tools are installed on your system. In distributions based on Debian, which includes Kali, requires the package linux-headers, corresponding to your current kernel version. Without these files, the compiler will not be able to create a compatible driver binary.

First, update your package lists to avoid dependency errors. This is a standard procedure experienced users perform before making any system changes. Next, install a basic compilation toolchain, including the GCC compiler and Make utilities.

sudo apt update
sudo apt install -y linux-headers-$(uname -r) build-essential git

Running this command ensures that you have the latest headers for the specific kernel version you're currently running. If you accidentally update the kernel and reboot without updating the headers, the driver build will fail. Therefore, always check that the versions match.

• 🛠️ Team uname -r will show the current version of the system kernel.
• 🛠️ Package build-essential Contains mission-critical C and C++ compilers.
• 🛠️ Utility git required for cloning repositories with driver source code.

In some cases, especially when using custom Kali builds or older versions, the package containing the headers may have a different name or be missing from the repositories. In these cases, manual downloading may be required. .deb packages from official mirrors. However, in current versions Kali Linux 2026+ This situation is rare.

Automatic installation via Kali repositories

The easiest and most reliable way is to search for a ready-made package in the official repositories. Kali Linux developers have included drivers for most popular chips directly in their archives. This eliminates the need for manual compilation. For Realtek chips, for example, packages with the prefix are often available. realtek-rtl.

To find the required package, you can use the repository search. Enter the chip or manufacturer name in the search command. If the package exists, the system will prompt you to install it. This takes just a few seconds and automatically integrates the module into the system.

apt search realtek
sudo apt install realtek-rtl88xxau-dkms

Using marked packages DKMS (Dynamic Kernel Module Support) is preferred. These packages automatically recompile the driver module every time you update the system kernel. This eliminates the need to reconfigure WiFi after each major OS update.

Manually installing drivers from GitHub

When ready-made packages aren't available, manual compilation is necessary. Most drivers for WiFi adapters are posted by enthusiasts on GitHub. The process typically involves cloning the repository, running the installation script, and reloading the module. This requires careful execution, as the commands may vary across repositories.

First, find the repository that matches your chip. For example, for the popular RTL8812BU chip, the repository from morrownrAfter cloning the repository, navigate to the created directory. The script is usually located there. install.sh or Makefile.

git clone https://github.com/morrownr/8812bu-20210118.git
cd 8812bu-20210118
sudo./install.sh

The script will automatically compile the module and copy it to the appropriate kernel directory. Once the process is complete, activate the driver with the command modprobe Or simply restart your computer. If everything went well, the interface should appear in the list of network connections.

• 📂 Clone repositories only from trusted sources with a high star count.
• 📂 Read the file carefully README.md before running any scripts.
• 📂 Make sure you have superuser (sudo) privileges to perform the installation.

⚠️ Warning: Third-party scripts from GitHub are executed with root privileges. Before running install.sh It is highly recommended to open the file in a text editor and ensure that it does not contain malicious commands or remote downloads.

Operating mode management and monitoring

After successfully installing the driver, the security specialist is faced with the question of managing the card's operating modes. Standard mode— Managed (client), but auditing often requires monitoring mode (Monitor) or access point (AP). Not all drivers and adapters support packet injection, which is critical for security testing.

To switch modes in Kali Linux, the main tool is the utility airmon-ng from the package aircrack-ng. It allows you to easily switch an interface into monitor mode and back. It's also useful to know how to forcefully disable interfering kernel processes that could hijack control of the adapter.

sudo airmon-ng start wlan0
sudo airmon-ng check kill

sudo nano /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf