System information
36 Chapter 2 Getting Ready for Mac OS X Server
Protecting Your Network with AirPort Extreme
If you have an AirPort Extreme Base Station (802.11n) or a Time Capsule, Mac OS X
Server can automatically manage it to protect your local network while allowing access
to selected services from the Internet. After initial setup, you can use Server Preferences
to specify individual services that you want to be accessible from outside your local
network. Mac OS X Server will congure your AirPort Extreme Base Station or Time
Capsule to allow incoming requests for those services to pass to your server.
Your AirPort Extreme Base Station or Time Capsule must have its Connection Sharing
option set to “Share a public IP address” (that is, an Internet connection) in order for
Mac OS X Server to manage it. In addition, the advanced option IPv6 Mode must be set
to Tunnel.
You should also make sure the AirPort Extreme Base Station or Time Capsule has a
secure password instead of the default password, which is public. You’ll need to know
the base station or Time Capsule password—not the wireless network password—to
turn on automatic AirPort management.
Protecting Your Network with a Router
If you have a cable router, DSL router, or other network router congured as a NAT
device, you can manually congure it to protect your local network while allowing
access to selected services from the Internet. You congure your router to forward
requests for individual services to your server. This process is called port forwarding or
port mapping, because each service communicates through an abstract, numbered
communication port. These ports are not physical like the Ethernet port on your
computer.