System information
38 Chapter 2 Getting Ready for Mac OS X Server
If this port has an IP address assigned by a DHCP server, you won’t be able to make
the server a gateway during initial Mac OS X Server setup. This is because, as a
gateway, the server would provide DHCP service that might conict with an existing
DHCP server on the same network.
Other computers connected to this local network will share the server’s Internet
connection.
For Internet users to be able to use your domain name to get services from your server,
your domain name must always point to your server. You can ensure this by obtaining
a static (xed) IP address for your server. If your ISP hasn’t provided a static IP address,
you can usually upgrade to one for a fee. If you don’t have a static IP address, then your
server’s IP address may change, and Internet users may no longer be able to reach your
server by name.
Setting up your server as a gateway does the following:
Assigns the Ethernet port connected to the local network the private IP address Â
192.168.1.1.
Turns on DHCP service and congures it to provide IP addresses 192.168.1.100 Â
through 192.168.1.199 to computers on the local network. DHCP service assigns these
addresses to computers whose Ethernet ports are congured with the “Using DHCP”
option.
You can also give users addresses 192.168.1.2 through 192.168.1.99, to use to congure
their Ethernet ports with the “Using DCHP with manual address” option. Addresses
192.168.1.200 through 192.168.1.220 are reserved for your server’s VPN service.
Sets up NAT service to share the server’s Internet connection with computers on the Â
local network.