How do I get BadBlue to search outside my company's firewall?

You'll need to use the Set searching options menu and configure the proxy server and proxy exceptions settings. If your organization has a firewall that prevents access to Gnutella ports, it may be difficult to attach to Gnutella machines outside of the firewall. See the Gnutella sharing help center for additional details.

How do I determine my proxy settings?

If your browser is able to surf outside the company, then your browser settings specify proxy settings which BadBlue can use.

For example, if you're using Internet Explorer 5, select the menu Tools >> Internet Options >> Connections >> LAN Settings and use the name of the proxy server and the port (e.g., proxy.my.com:8080).

Proxy exceptions are the addresses of machines that reside within the firewall. You can instruct BadBlue to search internal machines directly rather than using the proxy server. The exceptions list can specify one or more addresses inside the firewall, e.g., intranet.my.com,internal.my.com.

What's the best way to configure BadBlue for intranet sharing?

On a departmental or small organizational level, the easiest way is to establish a "hub" BadBlue server and configure a "star network".
   
In the diagram, above, each machine address is in black at the left of each computer; each machine's friend list is in blue on the righthand side.

All of the department's workstations have a single friend: A. A has each of the workstations listed as friends: B, C, D, E, F and G. Any search request will therefore route to all machines. And it is easy to maintain A's friend list.