On Thu, Feb 23, 2017 at 02:39:27PM -0800, Kyle Fazzari wrote: > On 02/23/2017 02:26 PM, Steve Langasek wrote:
> > acme-staging.api.letsencrypt.org is a CNAME. You are hitting bug #1647031, > > which we encountered when trying to roll out systemd-resolved by default for > > 17.04. This took a while to work through, but the fix has finally landed in > > zesty as of a week ago; we should now SRU the upstream change back to > > yakkety. (We should also SRU it back to xenial, but xenial needs a more > > complete backport of fixes to resolved, not just a cherry-pick of this one > > fix.) > > > > Dimitri, could you handle this backport to yakkety? Since unlike the > > Desktop, Ubuntu Server does not use dnsmasq by default (which would override > > resolved), this is a rather important bug there. > > Stephane, Steve, thanks for the quick responses. That explanation makes > sense until I consider step (4): How did that succeed? I did note that > it didn't actually seem to hit systemd-resolved (due to the lack of a > syslog entry), but I'm not sure why. For context, 4 was: 4. Run the test from outside the snap: `PYTHONPATH=/snap/resolved-test/current/lib/python2.7/site-packages /snap/resolved-test/current/usr/bin/python /snap/resolved-test/current/bin/test.py`. Note that this works fine (you should see a dict printed). At a guess, I would say that outside the snap you have the libnss-resolve package installed and active, such that python resolves it via the resolved native dbus interface instead of via the DNS stub resolver on port 53. These behavior differences are a reason that we should NOT use the libnss-resolve package, but instead sort out any bugs in the stub resolver and use it consistently everywhere. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer http://www.debian.org/ slanga...@ubuntu.com vor...@debian.org
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