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I need a remote assistance tool (i.e. tool that makes it possible to control another persons screen) that:

  1. works between two machines that are both NAT'ed behind different NAT-walls
  2. does not require modification of NAT-wall (i.e. port forwarding is no-go)
  3. works as both client and server on both Windows 7+XP and GNU/Linux
  4. is free (as in freedom - not price) software

It should preferably survive if any of the machines change its internal IP address (e.g. as part of a DHCP change).

TeamViewer delivers 1, 2, and 3, but fails 4 because of its license.

Google Chrome Remote Desktop delivers 1, 2, and 3, but fails 4 because of its license.

The different VNC tools deliver 3 and 4, but fails for either 1 or 2.

Ole Tange
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1 Answers1

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Edit: This answer is only valid for non commerical usage, apologies.

I've used Mikogo for free remote desktop sharing - it get's around NAT by having both ends of the session independantly connect to their server in the cloud which then links them.

Only nuisance is that you need to get the user to load a web page, enter the session id, then run the client, although I've managed to get very non technical people to do this over the phone.

Only one of your requirements I haven't tested myself is use with Linux, although looking up on the net, this appears to be possible.

Also would note, that shopping questions are off topic so I thought this would have been closed but if a 44k user has edited the question and kept it open then it might somehow stay open.

Robin Gill
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