Taking that a few steps further is an app called Screens, a VNC app which connects your Mac to remote Macs, Windows PCs, even Linux PCs so you can control the screen and run the computer remotely. What about from Mars?
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There’s no reason Screens wouldn’t work from Mars. All you need is to get you and your Mac to Mars, and have a good internet connection back to earth.
It’s more likely you’ll have a need to connect from a Mac notebook back to the office Mac or PC, or connect to your Mac home. That’s where Screens really shines.
Screens uses a technology called VNC which lets one computer share and control the desktop of a remote computer.
IT administrators use VNC technology all the time to control, manage, update and troubleshoot PCs in business. Apple builds in Screensharing to the Mac so Mac-to-Mac control is easy, but Screens takes that to another level, across the internet, and secured by SSH.
Think of it this way. You and your MacBook are on the road, and you need to connect to your PC or Mac back at home or in the office. Screens makes the connection a one step process.
Your Mac or PC’s desktop window shows up in a window on your Mac.
Screens also lets you copy and paste between Mac and remote device, and even handles Macs or PCs with multiple displays. Custom keyboard configurations can also be used in Screens.
What if you don’t take your Mac on the road? There’s a screens version for iPhone and iPad, so a connection back to your Mac or PC is just a few taps away. Of course, there is an issue with using the small screen to navigate the Mac’s much larger Desktop, but it works.
Your remote connections can be stored in iCloud (requires the Mac App Store version of Screens).
Most of the time Screens just works. Set it up with your remote devices IP address, user ID and password and you’re ready. When Screens doesn’t work it’s usually an issue with the home router’s settings, the office router’s settings, or a setting on Windows PCs. Those can present headaches, but once overcome, Screens is like having Mac Screensharing on other devices.