How to safeguard the panels of Xubuntu Linux for public use computers

Remove and modify the items in panels of Linux desktop is a common problem in Internet cafe's and libraries. A solution is available with Xubuntu Linux to prevent removing the items from desktop panel accidentally by users. 

Follow the steps below,

1. Configure the panels before start the process. Add/remove/edit items from panels.

2. Apply the following command,

sudo cp /home/vimal/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/

3. Apply the following command to edit the file.

sudo leafpad /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml

4. Find following line at the top of the file.

<channel name="xfce4-panel" version="1.0">

Insert # symbol at the start of the line.

5. Copy the following line and paste after the line above mentioned line.

<channel name="xfce4-panel" version="1.0" locked="*" unlocked="root">

 
Save the file. 
 

6. Restart your system.

Information courtesy:  
https://sites.google.com/site/easylinuxtipsproject/xfce#TOC-Safeguard-the-panels-kiosk-mode-