[Bug 1991566] Re: Package creates a socket file for all addresses of all families, even when bind to a single address

[Steve Langasek]

*** This bug is a duplicate of bug 1991592 ***
    https://bugs.launchpad.net/bugs/1991592

** This bug has been marked a duplicate of bug 1991592
   openssh-server should ship a systemd generator to generate ssh socket port configuration from sshd_config

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https://bugs.launchpad.net/bugs/1991566

Title:
  Package creates a socket file for all addresses of all families, even
  when bind to a single address

Status in openssh package in Ubuntu:
  Incomplete

Bug description:
  I am configuring OpenSSH to listen only on ipv4 and only on one
  interface and one address, with nginx listening on 22 on the other
  interface, and families.

  In order to make this happen, I had to "break" the socket file
  installed by the package at:

  /etc/systemd/system/sockets.target.wants/ssh.socket

  To read as follows:

  [Unit]
  Description=OpenBSD Secure Shell server socket
  Before=ssh.service
  Conflicts=ssh.service
  ConditionPathExists=!/etc/ssh/sshd_not_to_be_run

  #[Socket]
  #ListenStream=22
  #Accept=yes

  #[Install]
  #WantedBy=sockets.target

  (Commented out the lines that installed the socket)

  Then a daemon-reload, and restart of ngxinx, and all components of the
  solution are working as required.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: openssh-server 1:8.9p1-3 [modified: lib/systemd/system/ssh.socket]
  ProcVersionSignature:
   
  Uname: Linux 5.15.53-1-pve x86_64
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Mon Oct  3 16:36:37 2022
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=C
   SHELL=/bin/bash
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)

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