Chapter 6. Installing And Configuring Your SME Server V5 with ServiceLink Software
6.9.3. Option 3: Server-only mode
Server-only mode is appropriate if you do not wish to use the gateway capabilities of your server. In this configuration, your server
connects only to the local network and does not connect directly to the outside world (although it may connect indirectly through
your firewall or another server).
Warning
Because the server "trusts" the local network to be secure in server-only mode, it must be behind a firewall of some type.
Under no conditions should it be directly connected to the Internet.
Your network will resemble the image below:
If you have a connection to the Internet by way of another gateway or corporate firewall, you can configure your server to provide
services (including e-mail, web services, file and print-sharing) to your network. In this instance, you do not need your server to
provide the gateway role because that role is fulfilled by your firewall. If you select Option 3, "Server-only mode - protected
network", your server will provide your local network with web, e-mail, file and print-sharing.
On the next configuration screen, you should enter the IP address for the Internet gateway on your local network. If you do not have
an Internet connection, simply leave this configuration screen blank.
6.10. Configuring Server and Gateway Mode
If you are configuring your server to operate in server and gateway mode, you must select one of two Internet connection types - a
dedicated connection (such as ADSL or cable modem) or a dialup connection (in which case you will be connecting to your ISP
via a modem).
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