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TeamViewer through the Firewall


I have been reading about Block all outbound traffic in Windows Firewall to ensure the safety of our remote computes connected to cellular mobile networks at remote field locations.

And I have read about Which ports are used by TeamViewer 

But can someone help, how do I put the bricks together?
Is it safe to apply this through Team Viewer and remote connection or is this something that's done when I have physical access to the computers. I would kill myself if I ruin the connection to our field instruments. #NeverTouchARunningSystem

Any experience with writing this as a batch-script? I have several computers, and I hate to do the same thing multiple times.

Thank you, Community.

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