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dnsdist: Prevent 0-TTL cache hits #7585

merged 2 commits into from
Apr 4, 2019


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Short description

Fixes #7534.


I have:

  • read the document
  • compiled this code
  • tested this code
  • included documentation (including possible behaviour changes)
  • documented the code
  • added or modified regression test(s)
  • added or modified unit test(s)

Since we no longer use cached answers when the TTL drops to 0,
we need a bit more of margin.
@rgacogne rgacogne added this to the dnsdist-1.3.x milestone Mar 15, 2019
@rgacogne rgacogne merged commit 3b3dbac into PowerDNS:master Apr 4, 2019
@rgacogne rgacogne deleted the dnsdist-zero-ttl branch April 4, 2019 09:25
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Successfully merging this pull request may close these issues.

dnsdist cache can send out ttl=0 answers, confusing some clients
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