• Thursday 5 April 2018 Knowledge bank

    Centralised DNSSEC validation on closed networks

    31 October 2012 The Authentic Data (AD) flag is used by caching DNS servers to indicate that they have validated the DNSSEC records. The idea is that the client doesn't then have to repeat the check. Use of the AD flag is, of course, safe only on a network where the security of the last mile is assured. Examples include company networks, campus networks and the closed networks belonging to internet access providers and mobile operators. On such networks, DNSSEC validation and DNS caching can be centralised on the recursive DNS servers.

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  • Wednesday 31 January 2018 About SIDN

    Fault update: DRS and Whois available again

    The problems have now been resolved

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  • Monday 17 December 2018 About SIDN

    Our services get their highest rating ever: 8.5 out of ten

    Registrars and other users very satisfied with SIDN services

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