Kali Linux notes Running as a guest: ## If running as VMware guest: apt install open-vm-tools-desktop ## If running as VirtualBox guest: apt install virtualbox-guest-x11 Reverse direction of scroll wheel gsettings set org.gnome.desktop.peripherals.mouse natural-scroll false gsettings set org.gnome.desktop.peripherals.touchpad natural-scroll false Fixing EXPKEYSIG error in apt gpg --keyserver hkp://keys.gnupg.net --recv-key 7D8D0BF6 gpg --fingerprint 7D8D0BF6 ### verify output of this command before proceeding gpg -a --export 7D8D0BF6 | apt-key add - apt update