knot-resolver-users Březen 2018

knot-resolver-users@lists.nic.cz

3 participants
2 discussions

by Tomas Krizek

Dear Knot Resolver users, Knot Resolver 2.2.0 has been released. New features ------------ - cache server unavailability to prevent flooding unreachable servers (Please note that caching algorithm needs further optimization and will change in further versions but we need to gather operational experience first.) Bugfixes -------- - don't magically -D_FORTIFY_SOURCE=2 in some cases - allow large responses for outbound over TCP - fix crash with RR sets with over 255 records Full changelog: https://gitlab.labs.nic.cz/knot/knot-resolver/raw/v2.2.0/NEWS Sources: https://secure.nic.cz/files/knot-resolver/knot-resolver-2.2.0.tar.xz GPG signature: https://secure.nic.cz/files/knot-resolver/knot-resolver-2.2.0.tar.xz.asc Documentation: https://knot-resolver.readthedocs.io/en/v2.2.0/ -- Tomas Krizek PGP: 4A8B A48C 2AED 933B D495 C509 A1FB A5F7 EF8C 4869

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How to disable DNSSEC validation for specific domains

by Leonardo Brondani Schenkel

Hello, There is a website I need to use in a daily basis that uses DNSSEC, however their keys have expired which causes validation to fail. I have contacted their support but they failed to resolve the issue so far. Since I can resolve the name when using `dig +cd`, I was hoping I could configure `kresd` to skip validation when resolving that specific domain. It seems that I should be able to do so by using the `policies` module and the `FLAGS` action: https://knot-resolver.readthedocs.io/en/stable/modules.html#actions I am not sure with flag/flags to use. I inspected the source and tried the following: policy.add(policy.suffix(policy.FLAGS('DNSSEC_CD'),{todname('example.org.')})) But this apparently had no effect. I also tried without the trailing dot and played with other flags, but no success. Does anybody know which flag I could set to bypass DNSSEC validation for the specified domain? Or, if the policy module is not the way to achieve that goal, is there any other way? # kresd --version Knot DNS Resolver, version 1.5.1 Any help will be greatly appreciated, // Leonardo.

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knot-resolver-users Březen 2018