You can add a proxy servers to use to connect to providers and Web sites outside of your firewall.
To
specify a proxy server, you must be a portal administrator.
In the Services portlet, click Proxy Settings.
Note: By default, the Services portlet is on the Administer tab of the Builder page.
In the HTTP Proxy Host field, enter the address for the HTTP proxy server that you want to use to access applications outside your firewall, for example, myproxy.mycompany.com.
In the Port field, enter the port number for the proxy server, for example, 80.
Tip: Contact your server administrator for the names of servers running proxy software and their port numbers.
Click Add.
You can now use this proxy server for connections between the portal and Web providers. For information about how to do this, see Registering a provider.
You can also use this proxy for other connections, for example to connect to the URLs specified for URL items.
In the Select Proxy section, choose the proxy server you want to use for such connections. Choose None if you do not want to use a proxy server for non-provider connections.
In the No Proxy Servers for Domains beginning with field, enter the domains for which the proxy server should not be used.
Tip: The domains must begin with a period (.), for example .mycompany.com. Separate multiple domains with a comma (,).
Click OK.