If you wish  separate (isolated) network for the diskless clients and the internet connection, for example to separate the diskless clients for security reasons, you can easily install a proxy server. The clients on the internal network communicates through the proxy server with the science project servers.
 
The proxy server is preconfigured and could be easily configured for your subnet with a included tool. For security reasons it is also possible to restrict the traffic through the proxy server.
 
Proxy server setup is possible on Hard disk and USB systems.
 
The proxy server have per default a cache size of 10 MB on your hard disk or USB stick and listens to the default proxy port 3128.  
 
 
Proxy Server Configuration
 
• On a Hard disk or USB stick based system, start the installation by the Gnome menu option „Applications /
  Dotsch/UX Tools / Configure Proxy Server“ or by „sudo /opt/dotsch_ux/bin/configure_proxy.sh“ on the command
  line
 
• This script should also been used to enable, disable or reconfigure the proxy server
 
• A terminal window opens (if you start it from the graphical desktop, which ask you the subnet and the netmask for
  the network you would like to allow to communicate through the proxy server.
   If all systems should be allowed without any access restrictions, please enter Subnet = 0.0.0.0 and
   Netmask = 0.0.0.0
 
 
 
 
 
BOINC Client configuration
 
• To configure the BOINC clients through the Proxy Server, start the BOINC Manager locally or connect remotely
  with a BOINC Manager to the client  you would like to change.
   Please note : A change of this option is only in the „Advanced View“ of the BOINC Manager possible.  
 
• Open „Advanced / Options / HTTP proxy“
 
 
• Enable the option „Connect via HTTP proxy server“ and enter the IP address of the system where the proxy is
  installed in the field „Address“. Change Port to 3128.
 
 
 
• With OK the new settings would be activated immediately without any restart of the BOINC client.
 
 
 
 
3.1 Proxy Server