Is your caching resolver polluting the internet?


Previous research has shown that most of the DNS queries reaching the root of the hierarchy are bogus [1]. This behavior derives from two constraints on the system: (1) queries that cannot be satisfied locally percolate up to the root of the DNS; (2) some caching nameservers are behind packet filters or firewalls that allow outgoing queries but block… (More)
DOI: 10.1145/1016687.1016695


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