Enable Monitor Mode in Linux

In this short tutorial, you’ll learn how to change your wireless interface into Monitor Mode on Linux step by step using terminal commands. Monitor mode allows your Wi-Fi card to capture all wireless packets in the air — perfect for network analysis, penetration testing, and Wi-Fi auditing.

Commands explained line by line:

sudo iwconfig


👉 Lists all network interfaces and their current modes (Managed, Monitor, etc.)

sudo ifconfig wlan0 down


👉 Disables the wireless interface (replace wlan0 with your adapter name) to apply mode changes safely.

sudo iwconfig wlan0 mode monitor


👉 Switches your wireless interface to monitor mode so it can capture all packets.

sudo ifconfig wlan0 up


👉 Re-enables the interface after changing its mode.

sudo iwconfig


👉 Verify the mode has changed successfully to Monitor.

This method works on Linux distros like Kali, Ubuntu, and Parrot OS. Perfect for cybersecurity learners and ethical hackers.

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