Content filtering gateway realizing method based on network filter
A network filter and content filtering technology, applied in the field of communication, can solve the problems of spam threat, negative influence of teenagers, slow speed, etc., to achieve the effect of easy maintenance, reducing data copying and space switching
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[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0047] The present invention relates to a content filtering gateway based on a network filter framework, aiming at realizing real-time content filtering at the network border and filtering application layer information at the network layer. The core of the present invention is as figure 1 , the complained gateway (2), install dual network cards, both network cards are set to promiscuous mode, use brctl to configure the two network cards as network bridges. One network card of the gateway is connected to the router (1), which is the only exit from the network to the Internet; the other network card is connected to the switch (3), so that the system can be filtered through the network in a transparent manner. In this way, the network structure and devices on the network can be connected to the network without any modification; when the content filtering system...
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