English Chinese (Simplified)
An airgap is a security measure to physically separate a computer or device from all other networks, such as the Internet.
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The Basics 基础知识
"An air gap, air wall or air gapping is a network security measure employed on one or more computers to ensure that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network.[2] The name arises from the technique of creating a network that is physically separated (with a conceptual air gap) from all other networks. The air gap may not be completely literal, as networks employing the use of dedicated cryptographic devices that can tunnel packets over untrusted networks while avoiding packet rate or size variation can be considered air gapped, as there is no ability for computers on opposite sides of the gap to communicate." “网闸是在一台或多台电脑上实施的网络安全措施,以确保安全的电脑网络与不安全的网络(例如公共互联网或不安全的局域网)在物理上隔离。[2] 这个名字来自于创建网络的技术,这个技术在物理上把创建的网络与所有其他网络分离(带有概念上的网闸)。 网闸可能不完全是字面上的意思,由于使用专用加密设备的网络可以在不可信的网络上对数据包进行隧道传输,同时避免数据包速率或大小的变化,可称之为网闸,因为位于网闸两端的计算机无法进行通信。”
Taken from https://en.wikipedia.org/wiki/Air_gap_(networking) 摘自维基百科:https://en.wikipedia.org/wiki/Air_gap_(networking)