Filtering method, system, and network equipment

H - Electricity – 04 – L

Patent

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Details

H04L 29/06 (2006.01)

Patent

CA 2757339

A filtering method, a filtering system, and network equipment are provided by the present invention. The method includes: intercepting a request packet sent by a user terminal to an Internet server and extracting Uniform Resources Locator (URL) information from the request packet; determining a security level corresponding to the URL information according to the URL information; and processing the request packet according to the security level. Therefore, the problem that the installation of antivirus softwares in the user terminal occupies memory space and CUP resources and the problem of the risk of being bypassed by malwares are solved, which effectively prevents malwares from spreading and attacking, reduces the threat to user terminals from malwares, and improves the network security and user experience.

L'invention concerne un procédé de filtrage, un système et un dispositif de réseau associés. Le procédé consiste notamment: à intercepter un message demande envoyé par un terminal utilisateur à un serveur internet et à extraire de ce message demande des informations d'un localisateur de ressources uniformes URL; selon les informations URL, à déterminer les niveaux de sécurité correspondant à ces informations; selon les niveaux de sécurité, à traiter le message demande. Selon l'invention, on peut ainsi résoudre le problème selon lequel l'installation d'un logiciel anti-virus sur le terminal utilisateur occupe des espaces mémoire ainsi que des ressources UC et ces risques existent puisque le logiciel malveillant peut aisément encercler le logiciel anti-virus. En conséquence, la transmission et l'attaque du logiciel malveillant sont efficacement arrêtées, la menace provoquée par le logiciel malveillant au terminal utilisateur est réduite et la sécurité du réseau ainsi que le niveau d'expérience de l'utilisateur sont accrus.

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