Ubuntu
systemd package

  1. Bug #1668771
  2. Comment #5

Comment 5 for bug 1668771

Revision history for this message
Jorge Niedbalski (niedbalski) wrote : Re: systemd-resolved negative caching for extended period of time

I've made a proposal to change the resolved.conf Cache option to a tri-state "no, no-negative, yes" values. [0]

If a lookup returns SERVFAIL systemd-resolved will cache the result for 30s (See 201d995),
however, there are several use cases on which this condition is not acceptable (See #5552 comments)
and the only workaround would be to disable cache entirely or flush it , which isn't optimal.

This change adds the 'no-negative' option when set it avoids putting in cache
negative answers but still works the same heuristics for positive answers.

[0] https://github.com/systemd/systemd/pull/13047