基于逻辑机制的安全技术(如防火墙、代理服务器、入侵检测机制)被广泛应用于安全领域,但是这些对于一些黑客或内部用户而言,可能会被操纵,具有技术的复杂性和局限性,无法满足政府、金融等提出的高度信息安全的要求,由此产生了物理隔离技术。本文从网络隔离的基本概念与定义出发,阐述了网络隔离技术的原理与发展。 Logical mechanism-based security technologies such as firewalls, proxy servers, and intrusion detection mechanisms are widely used in the security arena, but these may be manipulated by some hackers or internal users with technical complexity and limitations Meet the government, financial and other requirements of a high degree of information security, resulting in physical isolation technology. Starting from the basic concept and definition of network isolation, this paper elaborates the principle and development of network isolation technology.