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ZOOKEEPER-4986 Disable reverse DNS lookup in TLS client and server - #2325
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Hey @anmolnar, this one looks fine from the security perspective, thanks! |
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Reviewers: kezhuw Author: anmolnar Closes apache#2325 from anmolnar/ZOOKEEPER-4986
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Reviewers: kezhuw Author: anmolnar Closes apache#2325 from anmolnar/ZOOKEEPER-4986
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Inspired by the same property that was implemented in Apache HBase for the same purpose.
Disable reverse DNS lookups by default for both quorum and client protocols to be consistent. This should be safe from backward compatibility perspective in a new major (minor?) version if we cut 4.0.0 from master soon. In a branch-3.9 backport we should enable reverse lookup in the quorum protocol by default to support smooth transition.
From #2316
cc @kezhuw @onmywaytoheaven