Remote screen sharing

Screen Sharing Issue: Since upgrading both desktop iMac and laptop Air to Mountain Lion I have not been able to figure out how to control my imac from out of town. Had no problems before. I think I have all the "sharing connections correct. Help?

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Remote Screen Sharing (VNC) from outside of my LAN

I often have to connect to my parents' Macs to help them out with various things. I commute between two cities and stay with them when I'm there.
(I set up a dynamic hostname with DynDNS to point to our router, which defaults to port 443, which on the home network is reserved for the QNAP NAS that's set up. I set the router up to be reachable at port 455 but I'm not sure if it is successfully sending IP address updates to DynDNS. I don't see a way to check if it is. DynDNS seems to require a paid account for that functionality and my routers log is also not very helpful. In short, I'm having trouble getting the whole dynamic DNS thing to work reliably with our router, which is otherwise a great little box: a Fritz!Box Fon WLAN 7390).
I use Jolly's Fast VNC (http://goo.gl/UmllQ) to connect to a personal server and that works wonderfully, but then there the details are taken care of for me by my provider and I just have to type in the details.
What I'd really love is something like Edovia's Screens (http://www.edovia.com/)... except for the Mac rather than the iPhone/iPad (though I do own an iPhone copy of it and it's wonderful).
We do share a MobileMe subscription in the family, but that's not very helpful here either.
So far, we've used iChat, Skype screen sharing and I often end up using TeamViewer because of its speed and near non-existant setup.
My goal is to find a way to connect to my parents' Macbooks even when they are not around so I can help them out with problems while they may not even be around. The key here is that I want to be able to control their screens without needing any action on their part.
Suggestions for the simplest possible way to do this are very welcome.

I didn't know TeamViewer could be set up to be accessible without a second user having to be around to give me the session ID and password. I wonder if it's worth looking into that if LogMeIn Free with its server always running is a perfectly acceptable solution? Any advantages to using TeamViewer's solution?
The free LogMeIn account does NOT allow file transfer. The free for personal use TeamViewer does.
LogMeIn server hides in the background, so it is less likely your parents will Quit LogMeIn.com, were as TeamViewer looks like just another app, so they might Quit from it to get it out of the way.
Of course if you need to transfer a file (or 2), you could use DropBox.com for that, and it is a very easy way to transfer files between systems. Or you could store the file on your MobileMe account in a public place, then via LogMeIn copy the file from your public space into your Parent's Mac(s). Or your could use LogMeIn to start TeamViewer, and then use TeamViewer to transfer the file.
Basically once you can start applications on your Parent's Mac(s), you can use any number of utilities for transferring data.
We do have MobileMe. I was under the impression that the way Back to my Mac works is that it will show you YOUR remote Macs in the Finder's sidebar. You know, ones that you're also logged in with YOUR MobileMe credentials. We all use our own, unique MobileMe accounts. Am I missing something?
Yes, all the Macs would need to use the same MobileMe account. Do you all really need separate accounts? Maybe a Family account.
I could deal with the port forwarding and DynDNS but I'll have to set that up to remotely administer my router and NAS, which is turning out to be quite the pain. So if I can simplify, I will. LogMeIn or TeamViewer will do the trick just fine.
Port forwarding is a once and done thing for your parent's router. It allows you to get to their Macs from outside their home. It should have nothing to do with remote admin, or your router and NAS. Also once you can Screen Share your parent's Mac, you can then use that Mac to talk from the inside to their router. Although one must be very careful about making router config changes as one "Oops" and you could loose your remote access, and have to visit Mom and Dad to get physical access
By the way, I've been using VNC/Screen Sharing and AFP file sharing over ssh tunnels in conjunction with port forwarding on the destination router for years. I do this, even though it is more work, because it was available long before most of the above services were available, and because it has a lot more flexibility once you know how to use it. Oh yea, I'm also a Unix software developer and spend a lot of time using ssh anyway

Screen sharing and Airport setup

I want to configure my Airport Extreme to allow remote Screen Sharing. Can anyone give me some tips as to what needs to be done? I have tried it with the default setup with no luck.
-gl

have you tried the obvious - restarting the computers involved and the router?

Screen Sharing and Virtual Desktop

Is there a way to force a new remote screen sharing connect to a "Virtual Desktop"?
In my experience, if another user is logged into the computer the new remote screen connection will be forced or given the option to connect to a virtual desktop. This will allow the new connection to run in the "background" without the first connection being influenced.
The issue is when a new remote connection is initiatied and no other connections are active the new connection will be shown on the computer's hardware monitor. i.e. No option is given to connect via a virtual desktop.
This is a security issue because a user can connect remotely and if he is the only connection on the computer he will have all his work shown on the hardware display.
I am hoping to find a way to force all remote connections to be on virtual desktops.

I guess its worth mentioning that although you can indeed screen share from Leopard to Tiger, it only works when you are on the same network. But Remote Desktop works across the internet...
Of course the trick to using Remote Desktop from a truly "remote" location elsewhere on the internet is that you have to be able to reach the IP of the computer you want to control, which can be tricky if its behind a NAT and the person your trying to reach is my Mom who has no idea how to configure her NAT, or firewall, or even find her IP address without my help.
Screen sharing Leopard to Leopard via iChat should be much more straight forward... translation: this will make my life much easier the next time my mom needs help.

Cannot get screen sharing to work long distance...

I set up an AIM account for my mother-in-law so that I could remote screen-share her MacBook and help her with learning how to use it and trouble shoot it (it's a Late 2008 Aluminum MacBook hand-me-down from my wife).
I've set up the account, but cannot get remote screen sharing working. Screen sharing works fine over bonjour, but no go over the internet using AIM. I can control my wife's MBA from my iMac and vice-versa, but neither of us can control her MacBook. When we choose "Ask to share users screen...", we get the pop up window stating "Waiting for response from user", along with the spinning gear icon. If she chooses "Share my screen with...", the pop up window appears on our Macs and we're able to choose accept. But then the pop up window switches to "User would like you to share his or her screen" and just sits there. Nothing happens. On her screen, she gets the message "waiting for response from user" and nothing else happens.
After a long wait, my screen will say, "There was a communication error during your chat. Messages didn't receive a response from..." and gives me the option to report the details to Apple.
What am I doing wrong?
Her MacBook is running Mavericks, as are our machines.
Message was edited by: pmpknetr21
Message was edited by: pmpknetr21

Hi,
@mac.com and @me.com ID works as AIM Screen Names (you add them like they are and existing name) but only if you are using Messages 7 or 8 plus later versions of iChat 6 in Lion.
You should be able to use the Apple Issued IDs in Mavericks.
If you using an AIM Registered name try using it without the @AIM.com or @AOL.com suffix (User Name only)
As AIM can "read" the Apple Database it will think the Apple IDs exist already but may not tell you that is the reason you can't re-register them.
Can you post the info being sent to Apple here ?
However stop the log after about 10 lines of the Binary Images (I will not need it all).
9:28 pm Sunday; August 3, 2014
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Lion Server Screen Sharing for Adminstrator

I'm having difficulty using my Administrator account for remote screen sharing after the upgrade to Lion Server. All other remote access tools work (Server Admin, SSH, file sharing, etc.). I'm also using LogMeIn to get to the server and, if I make an adjustment to standard user account to allow for server administration that account can use screen sharing with no problems. Only my administrator account does not seem to work. Has anyone else seen this?

Hi John, perhaps I did not express myself clearly.
My desktop iMac is set up with multiple desktops (desktop 1 for system stuff, desktop 2 for mail, messages, skype etc, desktop 3 for Safari and desktop 4 for text proessing, VM-Ware and other work).
When I work on that machine I'm logged in as one user and use the three finger swipe left and right or the Cmd-1 thru Cmd-4 keys to switch between those desktops.
I haven't founf how to do that from my a remotely connected MacBook Pro.
Both of which are running Mountain Lion in the mean time. The iMac runs Mountain Lion Server and the MBP has ML Server installed as well, but nut implemented. Just to be able to use the remote screen...
Hope this makes my question a bit mre clear...
Gerard

Why is Messages screen sharing icon grayed out?

Trying to do remote screen sharing with my mom's Mac using the new feature in Yosemite.
If you're not familiar with it, the new method does not require AIM, Jabber, etc and is independent of screen sharing settings in System Preferences (per Messages Help).
The procedure is:
In the main Messages window, select the name of the person you want to share with or, if you haven't previously exchanged messages, do so now.
Click 'details' on the right of the top bar of the main window.
In the menu that pops up, there are three icons: screen sharing, video chat, and audio chat/phone call. Click the screen sharing icon and send a request.
Today, my mom signed into her Messages account and we successfully exchanged iMessage messages (not SMS).
When I clicked 'details' the screen sharing and phone call icons were grayed out (or, more accurately, 'blued out' - they were a fainter shade of blue).
I clicked another name in the Conversations list and then clicked back to my mom's name. When I clicked 'details' this time, the screen sharing icon was no longer grayed out, so I sent a request to share her screen. She didn't receive the request, so I canceled it.
When I clicked on 'Details' again, the screen sharing icon was grayed out again. As far as I know, nothing had changed on my mom's end.
What could cause the screen sharing icon to be grayed out? And what could cause it to toggle back and forth between grayed out and normal?
Both computers are running the latest version of Yosemite, 10.10.3. Mine is a 2009 Mac Pro 8-core with 16 GB RAM, hers is a MacBook Pro from around 2012 or 2013.
Thanks!
Bob

Hi,
(He did say that he'd heard that due to changes in Google's system that their accounts no longer work with Messages.)
What he has heard and what are true are two different things
Logged in Google account
There are issues with Messages using SSL to login to the Google Talk server and Google saying SSL is Less Secure (there is a setting to Enable Less Secure apps like Mail that also uses SSL and Messages).
Some people find that 2 step Verification cannot be set at Google's Account settings if your want to use the Less Secure Apps setting.
1. I deleted my AIM account from Messages and had my mom do the same. The result is that we each only have two items in the Accounts window of Messages: an iMessage account (signed in with our Apple IDs) and a Bonjour account.
2. Clicking on the Details menu, the screen sharing icon was available for both of us. It was not grayed out.
This is using two different Methods of Screen Sharing in Messages (It is silly it has two but there we go)
For AIM use the Buddy List and the icons at the bottom or highlight the Buddy and use the Buddies Menu
DO NOT USE the Details option.
For iMessages start text chat then use the Detail Option an NOT THE BUDDIES Menu.
For the iMessages Method you have to Enable System Preferences > Sharing > Screen Sharing to allow the App to be Invoked.
(It is like FaceTime is invoked but only works to Macs)
As you mention the Connection Doctor only refers to the older "iChat Method for Aim and Jabber and Bonjour - if you can Video you should be able to Screen Share with that method.
9:49 pm Wednesday; April 29, 2015
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

Screen sharing without a monitor?

I've tried breifly and it didn't work but essentially I'm wanting to share the screen of a mac mini that has no screen?
I'm planning on having the mac mini in a fairly inaccessible place but would like to use it by sharing the screen on a Macbook Air or Pro.
Any ideas?

I too do this all the time with my Mac mini. I can use both the built-in Mac OS X Leopard Screen Sharing (Finder -> Go -> Connect to Server -> vnc://mac.mini.addr, as well as Chicken of the VNC and JollysFastVNC.
I connected keyboard, monitor, mouse just long enough to enable System Preferences -> Sharing -> Remote Management, and the VNC password. After that I removed the keyboard, monitor, and mouse.
What are your System Preferences -> Security -> Firewall settings? Is it possible that the firewall is blocking your attempts to start a screen sharing session?
Another approach is using the iChat screen sharing in conjunction with the Chax add-on for iChat and enabling the Chax auto-accept requests for remote screen sharing from a specific buddy. AOL Instant messaging accounts are free.

What capabilites can we expect for across-internet screen sharing?

I use remote screen sharing with my clients. I find iChat flakey, but indispensible when it works well. What are my options for remote screen sharing going into the future with Lion and beyond?

Tojasoh wrote:
What are my options for remote screen sharing going into the future with Lion and beyond?
No one can answer what options may be available in the future. Until Apple announces anything, we are left in the dark just like you.

BB screen sharing with Mac

Hi Everyone,
I am supposed to give a demo of 1 of the web application in BB, i need to display the flow on projector through my mac, So please let me know, is there any s/w available to to do so.
Any help appreciated..
Thanks..

That message is not indicative of a remote screen sharing session or any remote access to your mac. I wouldn't worry about it. It's more likely that some file you had backed up from when you used that computer before was trying to access a location on that computer or possibly that your old computer had been signed into your icloud account and was trying to link up for back to my mac functionality or something innocuous.

Screen sharing and remote management no longer working after some uptime

Server is withoiut monitor.
Users need to login via screen sharing from time to time.
"Enable screen sharing and remote management" is ticked in Server.app everything is working fine (for days, weeks).
ARD reports "Screen Sharing Available", so remote management is not running how it should.
Screen Sharing.app is "Connecting…" forever.
Kickstarting ARD (http://support.apple.com/kb/HT2370) does not help.
Restart fixes it.
Is there a workaround (over ssh) or a fix?

seduc wrote:
Do you know if
fdesetup authrestart
works then too?
Off-hand, no. I don't. See this posting, or as would be typical in any case, try it?

Screen Sharing and Remote Login suddenly stopped working

I have had Screen Sharing and Remote Login turned on on my iMac for several weeks and they have been working fine up until now. I have been accessing the computer via VNC programs and command-line ssh logins from other computers on the same local network. When I tried to connect today, i was given the following error message.
ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host
I have all of the required settings turned on in System preferences and there are no firewalls or router settings blocking it. I connected the two computers together via ethernet cable and the error message still occurred.
I can ssh from the machine to 127.0.0.1, so the ssh server is running. I can ssh to other locations from the laptop i am attempting to connect with, so that's not the problem either. I just spent an hour on the phone with the apple tech support line and they couldn't figure anything out either. Can anybody figure something out?

have you tried the obvious - restarting the computers involved and the router?

Screen Sharing and Remote Management

Is there a way in 10.6 to make both Screen Sharing and Remote Management run at the same time?
In the past (10.5), you could convince Mac OS to run both Screen Sharing and Remote Management to run simultaneously. I say "convince" because you could not enable them both through System Preferences. You could turn one on, then use Terminal to enable the other. This worked great for me, because I needed remote management for the machines I managed, and the users need screen sharing to work from home.
However, the work-around for 10.5 no longer seems to work for 10.6. Has any one gotten this to work yet for 10.6? Thanks!

I figured this out. First enable Remote Management via System Preferences. Then create /private/etc/ScreenSharing.launchd with 'enabled' as it's contents.

Remote Desktop & Screen Sharing not working??

Hello all,
I am trying to connect to a friends computer via the Finder's Screen Sharing, I enabled the screen sharing preferences under the System Preferences, put the password, etc and had him do the same and I am not able to connect to his system. I'm sure there is something else I have to do in order to get this to work. In the Windows world I had to use the VNC. But, I remeber reading in a Snow Leopard book that this is all that had to be done in order for this to work.
Best Regards,
freesparks

I know I could never get this working between two macs of the same OS (10.5.8) over the internet with the appropriate Sharing settings set up....
Im guessing both Screen Sharing and Remote Access through iChat DO NOT work anywhere but in a LAN?

Remote desktop and screen sharing with RMI

Iam developing an application for screen sharing and remote desktop
the problem is a performance problem
in the screen sharing application server screen is captured and the image is sent to all connected clients through rmi connection
I used JPEGImageEncoder to compress the image and convert it to array of bytes
then zipped the resulted array using deflater.
the result is sent through rmi connection
the performance is so poor
i tried JMF but the performance is worse
i am thinking of a way to send the server screen only if it is changed but i don't know how
anyone could help me to enhance it with acceptable quality for the image
thanks

As you said, you need to only send the changes over the line.
Java can not tell you what has changed, so you need to either write some JNI, or do a check on the current image, with the last image. (this would eat quite a bit of CPU time on the server).
It might be worth looking at the source for VNC, and other simler products.
The simpliest solution would be to split the image into blocks of x by y pixels, then do a pixel-by-pixel check on that block, and only send the block if it has changed.
Next thing to think about is scrapping RMI, and using raw sockets. RMI has a fair sized overhead.
Zipping a JPEG is unlikely to have any effect. A JPEG is already compressed.
You might want to look at a lossless compression format, like PNG, as the JPEG will have articles. This might be acceptable. If so, changing the compression ratio of the JPEG might be an option.
Finally, the bottle neck might be the call to Robot.createScreenCapture. This is not the fastest method.

Remote screen sharing

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