Tunneling - Definition and Overview

The word tunneling (also spelled tunnelling) has more than one meaning.

The literal meaning refers to the digging of tunnels.
Tunneling can also refer to the exploration of utility tunnels by unauthorized people; see urban exploration.
In physics, quantum tunneling involves the quantum-mechanical effect of transitioning through a classically-forbidden energy state.
In computer networking, tunneling means the transmission of one data protocol encapsulated in another using a tunneling protocol. This technique often occurs in combination with encryption.
Tunnelling appeared in the 1990s as a colloquial term for fraud committed by a company's own management or by major shareholders; see tunneling (fraud).

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Example Usage of Tunneling
	Neo_4583: @superamr Port Forwarding will require 1 Server & 1 Client Do u need code for that or u want to use it. if u wanna use it try SSH Tunneling
	TedMaul101: @serafinowicz It's like being Doctor Who,without all that quantum Tunneling or kissing things....
	leica0000: @robertbrook We need to develop a tea-over-twitter Tunneling app for when tweeps aren't feeling well...

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Tunneling - Definition and Overview

Example Usage of Tunneling