[Bug 2037718] [NEW] ubuntu-cpc projects do not correctly override openssh-server password-authentication value for debconf

[Thomas Bechtold]

Public bug reported:

While working on LP:#1968873 , it was mentioned that the passwordauthentication config option from sshd is not correctly set. 
Using a sshd_config.d/ snippet instead of directly modifying /etc/ssh/sshd_config does not take into account that the openssh-server package does have a debconf config & template :

$ sudo debconf-show openssh-server
  openssh-server/listenstream-may-fail:
* openssh-server/password-authentication: true
  openssh-server/permit-root-login: true

So instead of using a config snippet, /etc/ssh/sshd_config and the
debconf database needs to be modified .

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: livecd-rootfs 23.10.49
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri Sep 29 13:05:01 2023
InstallationDate: Installed on 2023-05-10 (142 days ago)
InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/usr/bin/zsh
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: livecd-rootfs
UpgradeStatus: Upgraded to mantic on 2023-07-19 (72 days ago)

** Affects: livecd-rootfs (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug mantic wayland-session

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https://bugs.launchpad.net/bugs/2037718

Title:
  ubuntu-cpc projects do not correctly override openssh-server password-
  authentication value for debconf

Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  While working on LP:#1968873 , it was mentioned that the passwordauthentication config option from sshd is not correctly set. 
  Using a sshd_config.d/ snippet instead of directly modifying /etc/ssh/sshd_config does not take into account that the openssh-server package does have a debconf config & template :

  $ sudo debconf-show openssh-server
    openssh-server/listenstream-may-fail:
  * openssh-server/password-authentication: true
    openssh-server/permit-root-login: true

  So instead of using a config snippet, /etc/ssh/sshd_config and the
  debconf database needs to be modified .

  ProblemType: Bug
  DistroRelease: Ubuntu 23.10
  Package: livecd-rootfs 23.10.49
  ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
  Uname: Linux 6.5.0-5-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.27.0-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Sep 29 13:05:01 2023
  InstallationDate: Installed on 2023-05-10 (142 days ago)
  InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230418)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/usr/bin/zsh
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: livecd-rootfs
  UpgradeStatus: Upgraded to mantic on 2023-07-19 (72 days ago)

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