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Mac OS X Leopard - ARCAism

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376<br />

CHAPTER 21 WORKING WITH REMOTE SERVERS AND NETWORKS<br />

AirPort<br />

If both machines have AirPort cards, it’s easy to connect them. One machine can create an ad hoc<br />

AirPort network by simply selecting the Create Network option from the AirPort menu bar item,<br />

as shown in Figure 21-10. After giving it a name and an optional password, other people can<br />

join the network from the AirPort menu bar item as well.<br />

Figure 21-10. Creating an ad hoc network with AirPort<br />

If you don’t use the AirPort menu bar item, you can accomplish the same thing through the<br />

Network pane of System Preferences. Simply select the AirPort icon on the sidebar, and then,<br />

from the Network Name drop-down menu, select Create New Network. Other AirPort users can<br />

connect the same way.<br />

I’ve never had a lot of luck setting up Wi-Fi on non-<strong>Mac</strong>intosh computers, but since AirPort<br />

is just Apple’s brand of Wi-Fi, it’s at least theoretically possible to connect to Windows machines<br />

the same way.<br />

NOTE Unfortunately, AirPort’s ad hoc networking doesn’t support WPA, so you’re stuck with<br />

easily cracked WEP encryption instead. Try not to talk about too many state secrets over an ad<br />

hoc network.<br />

FireWire and Ethernet<br />

If you don’t have AirPort or want a faster way to connect, you can always plug the two machines<br />

together with FireWire. Aside from Target Disk mode, FireWire is actually a full network interface.<br />

After connecting the two machines, open the Networking pane of System Preferences.<br />

You will have a self-assigned IP address. It doesn’t really matter what it is, as long as the<br />

other person’s self-assigned address is not the same. If it is the same, one of you should edit the<br />

last number so it’s different.<br />

Ethernet works the same way. Connect two machines, check the IP addresses, and change<br />

one if necessary. With Ethernet there is a trick, however. Some types of Ethernet cables are specially<br />

designed for connecting two machines directly. These so-called crossover cables are<br />

typically green in color.

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