Q: How to install Vulnerability Scanner (Nessus)?

1. Read General Notes
2. Read How to add extra repositories?

3. sudo apt-get install nessus
   sudo apt-get install nessusd
   sudo nessus-adduser
   sudo ln -fs /etc/init.d/nessusd /etc/rc2.d/S20nessusd
   sudo /etc/init.d/nessusd start
   sudo gedit /usr/share/applications/Nessus.desktop

4. Insert the following lines into the new file

   [Desktop Entry]
   Name=Nessus
   Comment=Nessus
   Exec=nessus
   Icon=/usr/share/pixmaps/nessus.xpm
   Terminal=false
   Type=Application
   Categories=Application;System;

5. Save the edited file (sample)
6. Read How to refresh GNOME panel?
7. Applications -> System Tools -> Nessus