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Let's take a look at the Network system preference, and here it is down in the Internet & Wireless area. There is awfully good chance that if you're watching this movie, you're already connected to the Internet, because after all you're streaming the movie via lynda.com. So I don't need to show you how to get connected to the Internet, but there are some things in the Network system preference that you should pay attention to. Start looking at the left column and here you're going to see the kind of ways you can connect to the Internet. We've got Ethernet, Wi-Fi, and FireWire. If you see a green button next to something, that means that that Internet connection is connected and you've got a good connection. So we'll look at Ethernet. Along the right side, you see how you configured to the Internet and that can be Using DHCP.
You can also use DHCP with a manual address where you are going to enter the address. BootP, we're not going to worry about that, and then Manually. If you signed up with an Internet service provider and you have a static IP, which means you have an address that's only yours, that's not being shared, you would select Manually and then within these fields you would enter the information that you have from your ISP, which includes your IP address, the subnet mask, and the router address. We don't, however. We're being assigned via DHCP. I select that, I'll click Apply and then the address appears. Next is Wi-Fi. In this area you can turn Wi-Fi on or off if you choose.
You can also choose the network name that you're connected to. Now by default, here I'm connected to a network called Guest, but if I click on this menu, I see other Wi-Fi hotspots within the neighborhood that I could connect to. If you see a lock icon next to one of these networks, it indicates that that network is password protected. You're going to need to know the password to get onto that network. There is also another option that says Join Other Network. You can select that one. You need to know the name of the network. It's not being broadcast publicly, but instead you have to enter it.
So for example, if I have a private network called Chris's Network, you would have to enter Chris's Network there. Then you have to know the kind of security that that network is protected by and these are various security schemes. There is WEP, WPA. This is more than we need to get into here. I'll cancel that. Either one of these cases, you can click an Advanced button and there's a lot of stuff in the Advanced button which is more advanced than we need to speak about right here. However, I do want to point you to the TCP/IP tab.
If you're getting an address over DHCP, which is the way most of us get our addresses, every so often things can get a little confused, that your IP address somehow gets scrambled or you've lost the connection to your Internet provider because the IP address is wrong. What you can do in this case is click the Renew DHCP Lease button, and it goes out checks with your router and it assigns you an address. This maybe the same address you had before or it may assign you a new address. For example, if another device is latched onto that old address and that's why you're not able to get through. We'll cancel out of that and there we are. You can also connect via FireWire. We're not going to do that. That's a very unusual way to connect and often times that's a connection between one computer and another. You'll connect to FireWire cable to your laptop, the other end of it may go to your desktop Mac, for example, and then you can network between the two, but that's not something that we're going to look at. And finally, at the bottom of these windows, you can show Wi-Fi status in menu bar if you like. Click that on. When you click on that, it will search for networks and then it will call up any network that's within range of you. Again, if you see the Lock icon you're going to need to know what the password is for that network. And that's a look at the Network system preference.
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