Control Your Mac from the Couch
Posted 10/01/2009 at 9:47am
| by Steve Paris
6. Another Way to Share
Quit iChat on both machines. Open the remote Mac’s System Preferences and go to Sharing. Make sure the Screen Sharing option is checked. Go back to the master Mac, open a Finder window, and select the computer we just altered from the sidebar’s Shared section. Click the Share Screen button.

Turn on Screen Sharing in the remote Mac's System Preferences.
7. Log On Remotely
The Screen Sharing application launches, and once you’ve typed in the remote Mac’s usual username and password, its Desktop appears in a self-contained window. You can even save the username and password in the master Mac’s keychain. As long as the Screen Sharing application is selected, you can control the remote Mac with the mouse, and most keyboard shortcuts work (those that don’t include cycling through applications, hiding the Dock, and logging out: These commands affect the master Mac instead). Since your screen-sharing session is contained in a window, you can go about your business on your own Desktop too. Plus, you can use this method to control more than one remote Mac at a time.

Find the remote Mac in the Shared section of your Finder sidebar, then click the Share Screen button.
8. Cut and Paste
The Screen Sharing window has an oblong button at the upper-right. Click it to reveal a sparse toolbar, which contains two icons that are used to copy and paste from the remote to the master Mac and vice versa. Unlike iChat’s Bonjour screen sharing, no audio is carried over: You only get the visual. But this drawback is more than made up for by the fact that you can do anything with your remote Mac, even restart it. Once the reboot process is done, the Screen Sharing window will then present you with the login screen or the Desktop itself, depending on your remote Mac’s login preferences. You cannot, however, wake it from sleep.

These buttons let you move data from the master Mac's clipboard to the remote Mac's clipboard, for cutting and pasting between the two machines.
9. Enabling More Sharing Possibilities
Lugging a Mac, even a laptop, around the house to control another can be cumbersome. Thankfully, you can also use your iPhone to achieve similar results. First, go back to System Preferences > Sharing on the remote Mac’s Sharing System Preference (as described in step 6). Select the Screen Sharing option and click Computer Settings. In the pane that drops down, check the “VNC viewers may control screen with password” box, type in a password of your choice, and click OK.

Remember the password, obviously.
10. Manual Addresses
Next, go to System Preferences > Network, select the service you use to connect to the Internet, and click the Advanced button. Select the TCP/IP tab and make a note of your remote Mac’s IP address. If you shut down your Mac regularly, you may wish to click the Configure IPv4 pull-down menu and choose Using DHCP With Manual Address. You can then assign your Mac a permanent IP address, rather than have a new one assigned each time you start it up (if you’re not sure what address to choose, just type in the current one). It might also be a good idea to assign permanent addresses to your other Macs as well to avoid potential conflicts in the future.

Use this option to assign your computer a permanent address on your local network.
11. Mocha for Your iPod touch
On your iPod touch or iPhone, go to the App Store, and install the free Mocha VNC Lite app. Launch it and tap the Edit Connections button. Choose one of the seven available fields. Fill in the IP address and the password created in step 9, and then make sure the Mac OS X Server option is switched on, in order to reveal a Command key when using the virtual keyboard.

This app is the key to controlling your Mac from your iPhone.
12. Your Mac, on Your iPhone
When ready, tap Connect, and you’ll be greeted with your remote Mac’s Desktop on your iPhone. It can take a little while to get used to it, the refresh rate is very slow, and it is also prone to crashing your mobile device, but you have your Mac on an iPhone with full control--launch applications, go to websites, move items around, anything you want. It’s even ideal to circumvent some of the deficiencies of the Remote application described in step 2.

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