METHOD AND DEVICE FOR CONTROLLING DATA FLOW TRANSMITTED ACCORDING TO THE DNS PROTOCOL (DOMAIN NAME SYSTEM)

The invention relates to a method and a device for controlling a data flow transmitted according to the DNS protocol. Upon receipt (E32) of a DNS request sent by a terminal (TC) and directed to a DNS resolution server (RES), the DNS request comprising a question relating to a domain name, it is veri...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAMEL, Matthias, MONTANUY, Olivier, GODIER, Julien
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The invention relates to a method and a device for controlling a data flow transmitted according to the DNS protocol. Upon receipt (E32) of a DNS request sent by a terminal (TC) and directed to a DNS resolution server (RES), the DNS request comprising a question relating to a domain name, it is verified (E34) whether said DNS request satisfies at least one predetermined criterion, and when said DNS request verifies said at least one predetermined criterion, a DNS response is generated (E36), this DNS response being valid for the DNS resolution server and comprising at least one incorrect response element to said question included in said received DNS request. The DNS response is sent (E37) to said DNS resolution server before the DNS resolution server receives (E39) a response from an authoritative server in response to said DNS request.