Sam Trenholme's webpage

MaraDNS 1 update

 

December 30 2011

Looking closely at the patch I applied yesterday, I realized that it had a couple of problems:

  • Instead of the hash randomization having 24 bits of entropy, it only had 2 to 5 bits of entropy
  • The hash randomization would sometimes not do a good job of randomizing the hash buckets chosen, slowing down MaraDNS' performance
This in mind, I have release MaraDNS 1.3.07.13 and MaraDNS 1.4.09 today with both of these issues fixed. The hash randomization now has 31 bits of entropy, and the hash does a fairly good job of choosing a random hash bucket again.

The tarball files can be found here:

http://maradns.org/download/1.3

http://maradns.org/download/1.4 (also has Windows binary)

The patch is here:
http://maradns.org/download/patches/maradns-1.3-better_hash.patch

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