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Door Anoniem Je kunt ook je eigen private recursive DNS server gebruiken zonder forwarders om dit soort truuks te voorkomen. Inderdaad, zie http://www.kb.cert.org/vuls/id/800113 III. Solution. Run a local DNS cache In lieu of strong port randomization characteristics in a stub resolver, administrators can protect their systems by using local caching full-service resolvers both on the client systems and on servers that are topologically close (on the network) to the client systems. These resolvers should be used in conjunction with the network segmentation and filtering strategies mentioned above.
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