Skip navigation

How can I turn on screen sharing remotely

1054 Views 8 Replies Latest reply: Dec 12, 2012 7:48 PM by BobHarris RSS
Joe Sixpack Calculating status...
Currently Being Moderated
Dec 10, 2012 11:26 PM

Here's the setup:


- Lion iMac connected with ethernet cable to Snow Leopard tower without screen.


- File sharing is enabled on the SL and I can connect from the Lion.


- The connection from Lion uses a SL admin user/pwd.


- Screen sharing was enabled on SL and was working (i.e. I could work the SL machine from the Lion iMac), but I accidently turned it off (!@#$%^&*).


How can I re-enable screen sharing on SL? (No, I don't have an extra screen lying about.)


I was going to try something like this:


But couldn't get SSH to work from terminal without having the SL IP address which I can't figure out how to get.

  • BobHarris Level 6 Level 6 (12,505 points)
    Currently Being Moderated
    Dec 11, 2012 5:34 AM (in response to Joe Sixpack)

    Do you have System Preferences -> Sharing -> Remote Login enabled on the headless Mac?  That is essential in order to ssh into it.


    To get the IP address I would download one (or both) of the following apps:


    WakeOnLan gives local network IP and MAC addresses



    Bonjour Browser



    Both of these utilities will give you a list of every IP address is sees on your local network.  WakeOnLan has another purpose, but it also has a wonderful ability to find and display every IP address it can see on the local network.


    Bonjour Browser will show all the advertised services on the local network, including SSH services.  From either of these apps you should be able to find the IP address of the headless Mac.


    NOTE:  If you do not have Remote Login enabled, then you are going to have to find a monitor to attach to the Mac for a few minutes until you get it configured.  Maybe a neighbor has a monitor you could borrow for an hour, or even an HDTV with VGA connector on the back (assumes you have or can get a cable/adaptor for monitor/HDTV).

  • BobHarris Level 6 Level 6 (12,505 points)
    Currently Being Moderated
    Dec 11, 2012 2:22 PM (in response to Joe Sixpack)

    If ARD is enabled (you would prefer Screen Sharing be enabled, but ARD is a more complex form of screen sharing, so the following might work):


    Finder -> Go -> Connect to server -> vnc://ip.address.of.mac


    This should start up the Screen Sharing client and attempt connecting to the headless Mac.


    In Bonjour Browser, you hopefully have an entry for "Remote Frame buffer" with your headless Mac listed, and an entry that has the headless Mac's IP address:5900.  This would indicate you should be able to connect via Screen Sharing (as indicated above).

  • BobHarris Level 6 Level 6 (12,505 points)
    Currently Being Moderated
    Dec 11, 2012 6:30 PM (in response to Joe Sixpack)

    Bonjour Browser saying there is a "Remove Frame Buffer", and that you were prompted for a username/password says that the screen sharing server is running on the headless Mac.  However, that fact that you were denied access for a valid account and password is a strong indication that the System Preferences -> Sharing -> Remote Management (or Screen Sharing) -> Allow Access For: section is denying you access for the account you specified.


    I think you will have to find a monitor.


    Unless you have another Mac that can boot Snow Leopard.  If you have another Mac that can boot Snow Leopard, then assuming you can plug in a keyboard to the headless Mac, then you could boot the headless Mac into Target Mode (Boot holding Command-T).  In Target Mode the headless Mac becomes rather large external Firewire disk drive.  If you then connect a Firewire cable between the Headless Mac and another Mac, you should be able to boot the other Mac holding down the "Option" key to see the headless Mac's disk as a bootable disk.  You could then boot up the other Mac using the headless Mac's disk, and then configure your sharing prefs as you need.

  • BobHarris Level 6 Level 6 (12,505 points)
    Currently Being Moderated
    Dec 12, 2012 7:48 PM (in response to Joe Sixpack)

    I'm glad Target Mode worked for you.  It doesn't work for everyone, especially if there are no other Macs, or the other Mac is so new that it requires Lion or Mountain Lion when you needed to be able to boot Snow Leopard, or worse doesn't have Firewire (think Macbook Air).


    As for Remote Management and Apple Remote Desktop, they are really intended for managing a classroom full of Macs, or a small business or department of Mac.  For home use, keep Remote Management off, and just use Screen Sharing.  I guess if you had a house full of kids, each with their own Mac, then that might be a case for buying Apple Remote Desktop.


    You might also want to enable "Remote Login" which will give you the ssh login ability, as another way to make a connection if Screen Sharing should go away again


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.