diff --git a/network/start_vnc/start_vnc.desktop b/network/start_vnc/start_vnc.desktop
new file mode 100644
index 0000000..6fbf278
--- /dev/null
+++ b/network/start_vnc/start_vnc.desktop
@@ -0,0 +1,9 @@
+[Desktop Entry]
+Name=Bildschirm für Techniker freigeben
+Exec=/usr/local/bin/start_vnc.sh
+Type=Application
+Terminal=false
+StartupWMClass=zenity
+StartupNotify=true
+Categories=Utility
+Icon=/usr/share/icons/Adwaita/48x48/legacy/face-glasses.png
diff --git a/network/start_vnc/start_vnc.sh b/network/start_vnc/start_vnc.sh
new file mode 100644
index 0000000..b9f4e49
--- /dev/null
+++ b/network/start_vnc/start_vnc.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+USERNAME=${USER,,}
+LOCK_FILE=/tmp/start_vnc_$USERNAME.lock
+ICON=application-x-vnc
+SSH_HOST=ulrich.earth
+SSH_PORT=2222
+SSH_USER=karin
+
+(
+  flock -n 200 || { echo "already running, exiting."; exit 1; }
+  gsettings set org.gnome.desktop.remote-desktop.vnc auth-method 'password'
+  gsettings set org.gnome.desktop.remote-desktop.vnc view-only false
+  gsettings set org.gnome.desktop.remote-desktop.vnc enable true
+  password=$(echo -e $(od -vAn -N3 -tu4 < /dev/urandom))
+  info_text="Bildschirmfreigabe aktiv! Passwort: $password"
+  echo -n "$password" | secret-tool store --label="GNOME Remote Desktop VNC password" "xdg:schema" "org.gnome.RemoteDesktop.VncPassword"
+  systemctl --user start gnome-remote-desktop.service
+  ssh -C -N -R 5900:localhost:5900 -p $SSH_PORT $SSH_USER@$SSH_HOST &
+  ssh_pid="$!"
+  zenity --title="Bildschirmfreigabe auf $(hostname)" --info --text="$info_text" --width=230 --ok-label="Beenden" --icon-name="$ICON"
+  kill $ssh_pid
+  systemctl --user stop gnome-remote-desktop.service
+  gsettings set org.gnome.desktop.remote-desktop.vnc enable false
+) 200>"$LOCK_FILE"