group.of.nepali.translators team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

Public bug reported:

libnss-{resolve,mymachines,myhostname} automatically add/remove
themselves from /etc/nsswitch.conf on installation/removal.

But when (manually) adding NSS action specifiers, these do not get
removed along.

TEST CASE:
  * Install libnss-machines. This will change the "hosts" line in /etc/nsswitch.conf from e. g. "files dns" to "files dns mymachines".
  * Edit the file to add an action specifier: "files dns mymachines [!UNAVAIL=return]"
  * Remove/purge libnss-machines.
  * In current xenial (229-4ubuntu7)/yakkety (231-6) the hosts line ends up as "files dns [!UNAVAIL=return]", i. e. the action specifier now applies to "dns" but should have been removed.
  * With the fixed version, the action specifier is completely gone.
  * Re-test with installing libnss-resolve (which inserts itself before "dns") and modifying to "files resolve [!UNAVAIL=return] dns [foo=bar]", then purge libnss-resolve again -- this should again remove the [!UNAVAIL=return] but *NOT* "dns [foo=bar]".

** Affects: systemd (Ubuntu)
     Importance: Medium
     Assignee: Martin Pitt (pitti)
         Status: In Progress

** Affects: systemd (Ubuntu Xenial)
     Importance: Undecided
         Status: Triaged

** Also affects: systemd (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: systemd (Ubuntu)
   Importance: Undecided => Medium

** Changed in: systemd (Ubuntu)
     Assignee: (unassigned) => Martin Pitt (pitti)

** Changed in: systemd (Ubuntu)
    Milestone: None => ubuntu-16.09

** Changed in: systemd (Ubuntu Xenial)
       Status: New => Triaged

** Changed in: systemd (Ubuntu)
       Status: New => In Progress

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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1625584

Title:
  Removing libnss-* does not remove corresponding options

Status in systemd package in Ubuntu:
  In Progress
Status in systemd source package in Xenial:
  Triaged

Bug description:
  libnss-{resolve,mymachines,myhostname} automatically add/remove
  themselves from /etc/nsswitch.conf on installation/removal.

  But when (manually) adding NSS action specifiers, these do not get
  removed along.

  TEST CASE:
    * Install libnss-machines. This will change the "hosts" line in /etc/nsswitch.conf from e. g. "files dns" to "files dns mymachines".
    * Edit the file to add an action specifier: "files dns mymachines [!UNAVAIL=return]"
    * Remove/purge libnss-machines.
    * In current xenial (229-4ubuntu7)/yakkety (231-6) the hosts line ends up as "files dns [!UNAVAIL=return]", i. e. the action specifier now applies to "dns" but should have been removed.
    * With the fixed version, the action specifier is completely gone.
    * Re-test with installing libnss-resolve (which inserts itself before "dns") and modifying to "files resolve [!UNAVAIL=return] dns [foo=bar]", then purge libnss-resolve again -- this should again remove the [!UNAVAIL=return] but *NOT* "dns [foo=bar]".

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