Discover the definition of the term Dns (Domain Name System) presented by Les Assises de la Cybersécurité.


DNS is the network directory, particularly for the Internet. It is the system that translates a domain name (e.g. into a numerical address, which is the only one that can be used to connect to the web server you are looking for (in this case, it might be This is a vital Internet system, in place since the early 1980s, highly decentralised, designed to be resistant to breakdowns and other outages... but not at all designed to cope with malicious intent! Today, the vulnerability of the DNS is widely known and widely discussed by specialists, and initiatives have been taken to try and add a little security to this venerable and useful protocol!.

The DNS may be venerable, but "birthright" has nothing to do with "DNS right"...

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