Illegal website filtering method and device

Abstract

The invention discloses illegal website filtering method and device. The method comprises the following steps of: obtaining an IP address for establishing website connection, and loading all URL (Uniform Resource Locator) conforming to the IP address outside a memory of a fireproof wall into the memory when determining that the memory of the fireproof wall has the IP address and the UPL conforming to the IP address is not stored in the memory; when sending the URL request, judging whether the sent URL is matched with one of the URLs conforming to the IP address in the memory of the fireproof wall, if so, disconnecting the connection, or else, allowing the message to pass through the fireproof wall. The invention can solve the problem of loading an address base into the memory once due to overlarge capacity, and can also accurately filter illegal websites through the dual comparison of the IP address and the URL.

Description

technical field

[0001] The invention relates to the technical field of network security, in particular to an illegal website filtering method and device. Background technique

[0002] Firewall refers to a protective barrier composed of software and hardware devices, constructed on the interface between the internal network and the external network, and between the private network and the public network. It is an image of guaranteeing network security. It is A combination of computer hardware and software that establishes a security gateway between the Internet and the intranet, thereby protecting the intranet from illegal users.

[0003] URL (Uniform Resource Locator, Uniform Resource Locator) classification filtering is a functional module of the firewall, and its purpose is to provide users with filtering services to intercept bad information on the Internet. It includes a special address library to filter illegal websites visited by users . The URL classification and fi...

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