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Port 27015 does not open in Microsoft Azure

I am trying to open port 27015 on a virtual machine in Microsoft Azure. Created 2 rules in the VM control panel in Microsoft ... rtscaner.ru. Maybe somewhere else you need to configure something? For it took more than one hour, but the port did not open.

What is the difference between ethernet and serial?

Tell me, what is the difference between ethernet and serial? On the Internet, only general words are described, and in books in different ways.