[Bug 1162475] Re: [hostnamed] Changing hostname doesn't update /etc/hosts

[hackel]

This problem still exists in Ubuntu 14.04.  My dmesg contains a bunch of
these errors:

systemd-hostnamed[1487]: Warning: nss-myhostname is not installed.
Changing the local hostname might make it unresolveable. Please install
nss-myhostname!

Running systemd-services 204-5ubuntu13
Also, gnome-control-center (1:3.6.3-0ubuntu54) no longer recommends libnss-myhostname as indicated in #3 above.

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https://bugs.launchpad.net/bugs/1162475

Title:
  [hostnamed] Changing hostname doesn't update /etc/hosts

Status in “gnome-control-center” package in Ubuntu:
  Triaged
Status in “systemd” package in Ubuntu:
  Triaged
Status in “systemd” package in Debian:
  New

Bug description:
  GUI
  ---
  1a. Run sudo gnome-control-center, or...
  1b. Save the gnome-control-center.pkla from https://bazaar.launchpad.net/~ubuntu-desktop/gnome-control-center/ubuntu/revision/556 to /var/lib/polkit-1/localauthority/10-vendor.d/ and then run gnome-control-center as an admin user

  2. Enter the Details panel
  3. The "Device name" (hostname) text field should be editable; change the text to something else.
  4. The hostname is updated instantly which can be verified by looking in /etc/hostname. However /etc/hosts/ is not updated.

  Command line
  ------------
  hostnamectl set-hostname

  The hostnamed documentation at http://www.freedesktop.org/wiki/Software/systemd/hostnamed says
  "To properly handle name lookups with changing local hostnames without having to edit /etc/hosts for them we recommend using hostnamed in combination with nss-myhostname: http://0pointer.de/lennart/projects/nss-myhostname/ "

  Without /etc/hosts being handled correctly, the hostnamed integration
  is only half-working.


  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: gnome-control-center 1:3.6.3-0ubuntu18
  ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4
  Uname: Linux 3.8.0-15-generic x86_64
  ApportVersion: 2.9.2-0ubuntu5
  Architecture: amd64
  Date: Sun Mar 31 08:52:57 2013
  MarkForUpload: True
  SourcePackage: gnome-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)
  usr_lib_gnome-control-center:
   activity-log-manager-control-center 0.9.4-0ubuntu6.1
   deja-dup                            26.0-0ubuntu1
   gnome-control-center-signon         0.1.5-0ubuntu1
   gnome-control-center-unity          1.2daily13.02.15-0ubuntu1
   indicator-datetime                  12.10.3daily13.03.26-0ubuntu1

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