[Bug 1968305] Re: sshd_config.d overrides not working

[James Paton-Smith]

According to man pages, this is set by default (at least on debian-based
systems) so I tried both with and without specifying 'Include
/etc/ssh/sshd_config.d/*.conf' in the main sshd_config file.

But neither seem to work.

I've attached the sshd_config file used when testing previously. I
specified the Include option at the end of the file.

** Attachment added: "sshd_config"
   https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1968305/+attachment/5579220/+files/sshd_config

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Title:
  sshd_config.d overrides not working

Status in openssh package in Ubuntu:
  New

Bug description:
  Creating an sshd_config override file under /etc/ssh/sshd_config.d/
  does not override settings from /etc/ssh/sshd_config

  From debugging sshd, I can see the override file is indeed being read,
  and the option is supposedly set. But after testing, the options are
  not taking effect.

  Specifically, in the main sshd_config, I have disabled PasswordAuthentication
  In my override file, PasswordAuthentication is enabled

  Yet, when connecting to the server, it only checks public/private
  keys.

  
  This is for an environment where we have our default sshd_config, and in specific use-cases, we might enable PasswordAuthentication for some servers.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: openssh-server 1:8.2p1-4ubuntu0.4
  ProcVersionSignature: Ubuntu 5.13.0-39.44~20.04.1-generic 5.13.19
  Uname: Linux 5.13.0-39-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Fri Apr  8 10:37:42 2022
  InstallationDate: Installed on 2021-11-04 (154 days ago)
  InstallationMedia: Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20210824)
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)

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