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I have had a Dynamic DNS address for several years. Yes, I did mean dynamic.ip.name when I said homeipaddress. I can type afp://dynamic.ip.name or vnc://dynamic.ip.name in the URL window of Safari and make a connection. Then use another Mac to connect to vnc://.name:12345 and if you connect, you are most definitely going out and back in through the router.Īnd if you are comfortable using a non-standard port number on the internet side, you will make it more difficult for malware on the internet scanning for open ports to try and break in, as they like to target known ports, so if you use something with 5 digits and under 65535, it is less likely for them to quickly discover your open ports.Īnd with open ports, make sure you have good passwords on the Mac(s) where those open ports go.īobHarris, thank you for the very thorough and helpful explanation.Īfter reading more on this I found that I don't need to use Finder for the Connect To Server function. For example have the router use internet side port 12345 reassigned to port 5900 on your home Mac. and give it a test.Īnother way to be sure you are going through the router, is to use the router trick of assigning a different internet side port number and have the router change the port number to 5900 or 548. A better test is to take a laptop to a WiFi hot spot at a cafe, bookstore, etc. If by homeipaddress, you mean .name then in theory you were going out to the internet and back in through your router. On my home network I was testing with afp://homeipaddress and this connected the two computers so that I could share files (Apple File Protocol). You can also just connect to the 1 computer and then use that computer to connect to the other computers if you absolutely have to. The key is that the internet side has the non-standard port, but the router assigns the standard port number on you home LAN side going to the desired computer. The same trick can be used for 548 file sharing port. If you need to connect to other computers, most routers will allow you to port forward a different internet side to 5900 on the home side.
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On the router I had to forward vnc requests to port 5900 on the home computer I want to control. I actually have several computers at home behind a router. can also be a backup if you want to make sure you have the ability to connect. If it is, BTMM can deal with all of this without a dynamic DNS name and without opening ports on your router.Īnother options is which will allow remote screen sharing without needing to open ports and without needing to get a dynamic DNS name. I would mention Back-to-My-Mac (BTMM) but I'm not sure if it is still available to Snow Leopard users with all the iCloud changes. vnc://.name (VNC) and afp://.name (file sharing) But you can still use Finder -> Go -> Connect to server. If I Connect To Server from a remote location, not on my home network, will that icon appear and will I be able to activate Share Screen from a remote location?