"Matthew" == Matthew Petach <mpetach@netflight.com> writes:
Matthew> Outline Matthew> Expect increase in number of DNS queries this year Matthew> Discussion Matthew> effect on cache server load and user response time Matthew> how can we decrease number of unnecessary queries? [mega-snippage] Speaking from the point of view of someone serving authoritative DNS data, rather than running a cache server for users, there is one thing above all required to reduce the number of unnecessary queries: ** All traces of BIND 8.3.3 and 8.3.4, and all code that shares their AAAA/A6 nameserver lookup bug, must be purged from the net completely. ** In the two and a half years or so since I first noticed this issue, the extent of any improvement has been slight. This isn't really surprising; how many people even know that those versions are broken? How many people would care, even if they knew, about the fact that they are generating unnecessary queries to other people's DNS servers? -- Andrew, Supernews http://www.supernews.com