Kali Linux VNC

GNOME

Disable Security: gsettings set org.gnome.Vino require-encryption false

Bind to localhost: gsettings set org.gnome.Vino network-interface lo

Set only password in Settings->Sharing->Screen Sharing and exit window

Start Screen-Sharing in current session: /usr/lib/vino/vino-server

SSH Tunnel: ssh -L 5902:127.0.0.1:5900 root@kali

XFCE

apt install -y autocutsel
cat <<EOF> /root/vnc.sh
#!/bin/sh
env -u SESSION_MANAGER -u DBUS_SESSION_BUS_ADDRESS vncserver -geometry 1600x900 -depth 24
EOF
chmod 755 /root/vnc.sh
mkdir -m 700 /root/.vnc
cat <<'EOF'> /root/.vnc/xstartup
#!/bin/sh

xrdb $HOME/.Xresources
xsetroot -solid grey
export XKL_XMODMAP_DISABLE=1
autocutsel -fork
/etc/X11/Xsession
EOF
chmod 755 /root/.vnc/xstartup

Start vnc: /root/vnc.sh