I ran into the issue while learning how a MAC address changer works and how to build one. I’m new to kali and I don’t fully understand how to use the terminal yet. The error shows up when I type in “ifconfig eth0 down”. The terminal responds with “SIOCSIFFLAGS: Operation not permitted”.
The best advice I’ve gotten so far was to use the sudo command to override the system’s permissions. That didn’t work either because for whatever reason, my password wasn’t accepted by the system.
Additional info: I run Kali in Virtualbox on a Windows PC.