Internet Initiative Japan Inc.(IIJ), one of Japan's leading Internet access and comprehensive network solutions providers, today announced that in order to improve domain name system (DNS) security, it will upgrade all of its DNS-related services, such as the DNS Outsourcing Service, to be compatible with DNS Security Extensions (DNSSEC) on January 31, 2011.

      DNS performs a function for linking IP addresses with host names. Normally, when a client computer communicates with a specific server, for example, the client computer sends a request to the DNS that manages the domain information for that server, and based on the information received back from the DNS, the computer communicates with the specified server. However, DNS cache poisoning , a type of attack that exploits this system, became wide spread in the 1990s, which created the risk of receiving false information from the DNS.

      The Kaminsky Attack , which made DNS cache poisoning relatively easy, was discovered in 2008 and became a very large security risk. Computers that receive false DNS information as a result of these attacks are vulnerable to a number of threats, such as being forwarded to harmful sites or having their webpage or mail content altered, and since the DNS function itself is rendered inoperable, it may have a huge impact on the entire Internet, which is why improving DNS security has become a critical mission.

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