On 20 Apr 2017 22:20, "Sean Dague" <s...@dague.net> wrote:

For what it's worth, I reported a related issue up to the systemd-devel
mailing list, and it looks like in systemd 233 (the next version) things
work much better with DNSSEC. https://lists.freedesktop.org/archives
/systemd-devel/2017-April/038698.html


I rebuilt the 233 out of debian experimental, and at least for my use case,
this all worked now.


I am preparing merge of 233 for 17.10 and we can re-evaluate enabling
dnssec then.

Regards,

Dimitri.

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https://bugs.launchpad.net/bugs/1682499

Title:
  disable dnssec

Status in systemd package in Ubuntu:
  Fix Committed
Status in systemd source package in Zesty:
  Fix Released

Bug description:
  [Impact]

   * dnssec functionality in systemd-resolved prevents network access in
  certain intra and extra net cases, due to failure to correctly
  validate dnssec entries. As a work-around we should disable dnssec by
  default.

  [Test Case]

   * Validate systemd-resolved is compiled with --with-default-dnssec=no
   * Validate that systemd-resolve --status says that DNSSEC setting is no

  $ systemd-resolve --status

  good output:
  ...
    DNSSEC setting: no
  DNSSEC supported: no
  ...

  bad output:
  ...
    DNSSEC setting: allow-downgrade
  DNSSEC supported: yes
  ...

  [Regression Potential]

   * People who expect DNSSEC to be available by default will need to
  re-enable it by modifying systemd-resolve configuration file

  [Other Info]

   * See duplicate bugs and other bug reports in systemd for scenarios
  of DNS resolution failures when DNSSEC is enabled.

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