Controls Web Proxy

Overview

The Controls Web Proxy is a way to view web pages from servers located inside the Accelerator Controls Firewall. An example of such pages would be web displays from Tektronix scopes. Additionally the Controls Web Proxy can be used by off-site users to access .fnal.gov web pages which are restricted to on-site users.

The Controls Web Proxy is a reasonable alternative to using the Controls VPN for users who need to access web pages inside the Controls Firewall. It is also an alternative to the Fermilab Site VPN for users who want to access restricted .fnal.gov web pages from off-site.

The Controls Web Proxy works by setting up an SSH tunnel through one of the gateway nodes, outland.fnal.gov or outback.fnal.gov. The user's web browser is configured to access control system web servers through the SSH tunnel.

The Controls Web Proxy should work with any web browser on any platform with an SSH client. It has been tested with Firefox and Internet Explorer on Microsoft Windows, Safari and Firefox on Mac, and Firefox on Scientific Linux Fermi.

Step 1: Configure Your Web Browser

Firefox

These instructions are for the Windows version of Firefox. Look for similar options on other platforms.

Internet Explorer

Safari

The Automatic Proxy Configuration file directs web requests as follows:

If your computer is at Fermilab, requests to web servers inside the controls firewall use the Controls Web Proxy. All other requests use direct access.

If your computer is not at Fermilab, all requests to web servers inside the controls firewall use the Controls Web Proxy. Requests to other .fnal.gov servers use the proxy, but failover to direct access if the proxy is not active. All other requests use direct access.

Step 2: Open the SSH Tunnel

Windows With Exceed

Mac

Scientific Linux Fermi

Step 3: Access Web Sites

Last updated 10-Apr-2008 by Jim Smedinghoff

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