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Xin'an Second Edition; Chapter 11 learning notes on the principle and application of network physical isolation technology
2022-07-06 17:34:00 【Moon Dream Studio】
One 、 The outline of this chapter requires
11、 Principle and application of network physical isolation technology
11.1 Overview of network physical isolation
• The concept of network physical isolation • Working principle of network physical isolation
11.2 Network physical isolation system and type
• Composition of network physical isolation system • Two way network physical isolation system
• One way network physical isolation system • Terminal physical isolation system
11.3 Network physical isolation mechanism and Implementation Technology
• Special purpose computers • many PC• Internet proxy service • Internal and external network line switcher
• Internal and external partitions of a single hard disk • Dual hard disk
• Gatekeeper • Protocol isolation technology • Unidirectional transmission unit • Information ferry Technology • Physical disconnection Technology
11.4 Main technical indicators and products of network physical isolation
• Main technical indicators of network physical isolation ( Understanding of functional technical indicators 、 Understanding of performance and technical indicators 、 Understanding of safety technical indicators )
• Analysis of working mechanism of network physical isolation products 、 Understanding of network physical isolation product standards 、 Applicable scenarios of network physical isolation products
11.5 Network physical isolation Application
• Intranet users can safely access the Internet
• The business production network is isolated from the Internet
• Internal and external network security physical isolation
• Information exchange in different security areas
Two 、 List of important and easy knowledge points in this chapter
11.1 Overview of network physical isolation
In order to achieve a higher level of network security , Network security experts suggest ,“ Internal and external networks and online computers realize physical isolation , In order to reduce the threat from the Internet ”.《 Regulations on the confidentiality management of the international networking of computer information systems 》 Article 6 of Chapter II stipulates ,“ A computer information system involving state secrets , It shall not be directly or indirectly connected with the Internet or other public information networks , Physical isolation must be carried out .”
It can meet the information and data exchange needs of internal and external networks , Security technology, which can prevent network security incidents, came into being , This technology is called “ Physical isolation
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