Method and system for implementing safety access public network of network terminal as well as special network access controller thereof

Abstract

The invention discloses a method for realizing that a network terminal can safely access a public network. The method comprises the following steps: a network access controller is connected in series between the network terminal and the public network; when a firewall strategy database is required to be configured, a user on a network terminal submits configuration request information; the network access control server generates a group of corresponding configuration command data packet which is transmitted to the network terminal according to the configuration request information; the group of configuration command data packet is captured by the network access control server which is connected in series on the link so as to analyze and execute the corresponding configuration command and complete the update to the configuration of firewall policy; and the user on the network terminal access the public network under the security protection of the firewall policy configured by the network access control server. The invention also discloses a system for realizing that the network terminal can safely access the public network and the network access control server. The method, the system and the network access control server not only can ensure that the network terminal can safely access the public network, but also can be convenient for a user to use.

Description

technical field [0001] The invention relates to computer network security technology, in particular to a method and system for realizing safe access of a network terminal to a public network, and also to a dedicated network access controller thereof. Background technique [0002] A firewall refers to a combination of a series of components set between different networks (such as trusted intranets and untrusted public networks) or network security domains. It is the only entrance and exit of information between different networks or network security domains. By monitoring, restricting, and changing the data flow across the firewall, it shields the information, structure, and operating status of the network from the outside as much as possible, and selectively accepts external access. Strengthen internal device supervision, control access to servers and external networks, and set up a barrier between the protected network and external networks to prevent unpredictable and pote...

AI Technical Summary

Problems solved by technology

[0006] In the current firewall technology and application, some firewall products have remote configuration function, and users can remotely access and configure the firewall based on its IP address in the network, but the corresponding IP address is assigned in the network topology Firewall devices may be maliciously invaded, and they all need to configure additional hardware and complex operating systems. Professional technical personnel are required to configure and manage them during use and daily maintenance.

However, for general small-scale enterprise computer networks and personal or home computer networks, not all of them have the technical basis for the management and maintenance of firewall products currently on the market, nor can they afford to hire professional technicians to manage and maintain firewall products. cost

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