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by Glenn Fleishman
Take Control of Screen Sharing in Leopard
This book has been replaced by Take Control of Screen Sharing in Snow Leopard.
Using either Leopard or Snow Leopard? We have replaced Take Control of Screen Sharing in Leopard with Take Control of Screen Sharing in Snow Leopard, which covers both Mac OS X 10.5 Leopard and 10.6 Snow Leopard. Buy that edition instead.
- More Info
- Contents & Intro
- FAQ
- Blog
Read this book to learn the answers to questions like:
- How can I share the screen of a buddy via iChat?
- What's the best way to use screen sharing for remote tech support?
- How do I start screen sharing on a local network with Bonjour?
- Can I share the screen of another computer if I know only its IP address?
- What smoke and mirrors is Apple using to make Back to My Mac work?
- How can I copy text from one computer to another while screen sharing?
- Leopard's screen-sharing isn't enough—what other apps do you recommend?
- How do I share screens with people using older versions of Mac OS X or Windows?
Book Info
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About the Author
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Book Reviews
Author Interviews
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Glenn Fleishman is a technology journalist based in Seattle, where he lives with his wife and two sons, both of whom are adept at accidentally pressing the Power button on his laptop.
He’s a contributing editor at
Table of Contents
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Read Me FirstThis book will help you master sharing a remote computer’s screen in Leopard and teach you about the options needed to get a reliable connection with the greatest versatility. It was written by Glenn Fleishman, technical edited by Dan Frakes, edited by Tonya Engst, and published by TidBITS Publishing Inc. |
Introduction
I remember the first time I used a remote screen-sharing program. Working from my desktop computer, I accessed a system that was in a server room but which had no monitor attached. It was magical. I could work with the server just as if I were directly connected with a keyboard and mouse, using its programs and manipulating objects on its desktop, but I didn't need to sit in the server room and have the inconvenient extra hardware attached to the server.
That sense of wonder still pervades me when I use screen sharing 18 years later. Instead of using a 10 Mbps (fast!) local Ethernet network or 2,400 bps dial-up software to make the connection, I use broadband feeds over the Internet to reach computers across town, 15 miles away, and 3,000 miles away.
Screen sharing gives you access to applications and data stored on another computer, even though your keyboard and mouse aren't connected to that computer. It also gives you the freedom to switch between computers in different locations without using individual remote-control applications, most of which are wonky or slow when used over the Internet.
Leopard extends the use of screen sharing from something you had to install or figure out how to use in Mac OS X 10.4 Tiger and earlier versions of Mac OS X to being part of the system, available on tap.
In Leopard, screen sharing comes in several forms, each of which I explain how to use in this book. In some forms, you need to be in control of each machine you want to access remotely, having an account and password on that computer. However, one particular method—Screen Sharing over iChat—requires just a buddy who gives you permission to access his or her screen.
I also cover VNC, a technology that's built into many different programs for many versions of Mac OS X and other platforms, and which is the basis of much of Leopard's screen-sharing capability.
Quick Start to
This book teaches you how to set up a computer for remote screen sharing, using built-in features in Mac OS X 10.5 Leopard, as well as an alternative, VNC, that works with many operating systems.
Educate yourself with background information that will help you configure like a pro:
- Discover what you can do with a screen-sharing connection. See Learn Screen-Sharing Basics.
- Walk through the many ways that Leopard offers and makes remote screen-sharing links. See Sharing in Leopard.
Configure and use one of the many screen-sharing options:
- Set up an ad-hoc connection over the Internet or on your local network with Share Screens via iChat. You can also Use iChat Theater.
- Configure Leopard's Screen Sharing service to Share Screens via a Bonjour or a Direct Connection; then Share Screens via the Screen Sharing Application.
- If you have a .Mac account and want to share with other Macs that you own, you can Share Screens via Back to My Mac.
- In all cases but iChat-based screen sharing, you can go beyond the basics by learning how to Add Toolbar Options in the Screen Sharing application and how to Turn On Bonjour Viewing, both covered in Add More Features to Screen Sharing.
- Learn the ins and outs of VNC, connection software that works with many versions of Mac OS X, Windows, and most other operating systems. See Get Backward Compatibility with VNC.
- Use a third-party screen-sharing utility in order to have a larger set of options for interacting with remote systems, including file transfer, or to reach otherwise unreachable computers. See Appendix A: Other Remote Access Solutions.
Solve problems:
- For screen sharing with iChat or Back to My Mac, first set up your router to enable remote access. See Appendix B: Configure Your Router or Gateway. If problems persistent, look for solutions in:
- iChat Connection Problems
- Bonjour, Direct, and VNC Connection Problems
- Back to My Mac Connection Problems
- Work your way through common problems with remote access, including firewalls and computers that put themselves into a sleep state when idle. See General Troubleshooting.
Will this ebook answer every question that I have about Back to My Mac?
If you are the happy-go-lucky sort whose Back to My Mac connection work smoothly and you don't have in-depth questions about the service, then, yes, it will answer all your questions. However, if you can't make the service work with the basic advice in this ebook, or if you want a fairly deep understanding of how a Back to My Mac connection is made or of security concerns relating to the service, then what you really want is Take Control of Back to My Mac.
Can I read this ebook on an iPad, iPhone, or iPod touch?
There are lots of great ways to read PDFs on these devices. For more details, please read our latest Device Advice.
Ask a Question
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Update Plans
February 2010 -- We have replaced Take Control of Screen Sharing in Leopard with Take Control of Screen Sharing in Snow Leopard, which covers both Mac OS X 10.5 Leopard and 10.6 Snow Leopard. Buy that edition instead.
.—Tonya Engst
A Fix for a Snow Leopard Screen Sharing Black Screen
September 7, 2009 --
Mac OS X 10.6 Snow Leopard appears to break the Screen Sharing application for Bonjour, Back to My Mac, and direct connections by displaying a black or frozen screen on connection. However, I've discovered any easy fix. From the View menu, choose either Full Quality or Adaptive Quality, whichever item isn't checked. This allows screen sharing to flow again. I imagine that Apple will fix this problem in a minor update soon. [According to Glenn, the problem appears to have been fixed in 10.6.2. —Tonya]
—Glenn Fleishman
Skype Extends Screen Sharing to Mac Users
August 12, 2009 --
The release of Skype 2.8 brings yet another option for remote screen sharing to Mac OS X. This update lets two Skype users with 2.8 or later, or the beta of Skype 4.1 for Windows, share a screen with each other. The screen sharing lets you share your own screen with someone else, but doesn't work in group chat or call situations. It's set up for viewing, not remote control, too. Uniquely, you can define an area of the screen you want to share, and change that shape during a session dynamically.
I wrote about this new feature in depth at TidBITS —along with another feature for per-minute Wi-Fi hotspot access—in Skype 2.8 Adds Screen Sharing, Per-Minute Wi-Fi.
—Glenn Fleishman
Major Change in Screen Sharing Application Controls
August 7, 2009 --
Apple slipped in a mickey in the Mac OS X 10.5.5 update. In the Screen Sharing application—as noted on page 35 in the book—you could use Rob Griffiths advice in Macworld to add buttons to the application's toolbar for various extra features, including controlling bit depth (number of colors). Apple has disabled this hack and removed the buttons.
Rob points out at Macworld on 16-Sept-2008 that to get these options back you would have to pay $300 to get a five-user bundle of Apple Remote Desktop 3. This seems awfully churlish of Apple. There's no way to obtain a single-user copy at lower cost, either. The Screen Sharing program is still useful without these extra controls, but substantially less convenient.
[The extra features remain disabled in 10.6 Snow Leopard.]
—Glenn Fleishman
MobileMe Accounts for iChat No Longer Indefinitely Available
February 19, 2009 --
I was just made aware that the tip on page 12 of this book about obtaining a free iChat account via MobileMe is out of date. When Apple converted its .Mac service into MobileMe, it also eliminated a long-standing policy of allowing a trial subscriber to retain a .Mac account for use with iChat even if the trial user didn't sign up. That's still true for any old mac.com account you may be using in this fashion. However, with MobileMe, your account is active for only 45 days after the end of a trial or after the account expires. Then the account is disabled, and the account's name may be used by another subscriber if they request it. There's a way around this, though, as Apple still offers free .Mac accounts if you know where to sign up for them. TidBITS editor Jeff Carlson explains how to create such an account with in iChat in Get a Free, Non-Expiring .Mac Address for iChat.
The advice about setting up an AIM (AOL Instant Messenger) account at no cost for use with iChat is still valid, however.
Thanks to fellow author and TidBITS editor Joe Kissell, author of Take Control of MobileMe, for explaining the MobileMe change, and to Jeff Carlson for his advice on .Mac free accounts.
—Glenn Fleishman
Transferring Files with iChat
June 17, 2008 --
Reader Jack B. wrote in recently to remind us that you can transfer files via iChat, though not with the iChat screen-sharing feature. To accomplish a transfer, just drag a file from your Finder and drop it on a buddy's name in the AIM Buddy List window. (Presumably you could also drag a file to a name in the Bonjour List window.) In our email exchange, I commented that I'd found the iChat file-transfer feature to sometimes not work. Jack noted that he has to zip folders before he can transfer them and that JPEGs don't seem to be working for him under Leopard, though they did previously. He also suggested if the drag-and-drop method doesn't work, choosing Buddies > Send File or having one or both people involved in the chat quit and relaunch iChat.
—Tonya Engst
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