Re: [Bug 1647031] Re:systemd-resolved’s127.0.0.53 server does not follow CNAME records

[Martin Pitt]

Blaisorblade [2017-03-15 15:03 -0000]:
> Another corner case seems to be binaries linked against musl libc, since
> they do not use NSS.

Note that this is generally broken and cannot be supported, regardless of the
DNS resolver. These binaries could also not resolve winbind host names, YP,
LDAP, Active Directory, or sssd users/groups, and anything else which is
handled through nsswitch.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1647031

Title:
  systemd-resolved’s 127.0.0.53 server does not follow CNAME records

Status in Nextcloud:
  Unknown
Status in systemd:
  New
Status in network-manager package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Fix Released
Status in network-manager source package in Yakkety:
  Invalid
Status in systemd source package in Yakkety:
  Triaged

Bug description:
  $ systemd-resolve www.freedesktop.org
  www.freedesktop.org: 131.252.210.176
                       2610:10:20:722:a800:ff:feda:470f
                       (annarchy.freedesktop.org)

  -- Information acquired via protocol DNS in 673.6ms.
  -- Data is authenticated: no
  $ ping www.freedesktop.org
  ping: www.freedesktop.org: Name or service not known
  $ cat /etc/resolv.conf
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  # 127.0.0.53 is the systemd-resolved stub resolver.
  # run "systemd-resolve --status" to see details about the actual nameservers.

  nameserver 127.0.0.53
  $ dig +no{cmd,comments,stats} www.freedesktop.org @127.0.0.53
  ;www.freedesktop.org.		IN	A
  www.freedesktop.org.	7146	IN	CNAME	annarchy.freedesktop.org.
  $ dig +no{cmd,comments,stats} www.freedesktop.org @8.8.8.8
  ;www.freedesktop.org.		IN	A
  www.freedesktop.org.	14399	IN	CNAME	annarchy.freedesktop.org.
  annarchy.freedesktop.org. 14399	IN	A	131.252.210.176

  I trust it needn’t be explained why this makes the internet almost
  completely useless in zesty.

To manage notifications about this bug go to:
https://bugs.launchpad.net/nextcloud-snap/+bug/1647031/+subscriptions