[Bug 876910] Re: When starting open ssh server without host keys in /etc/ssh/, the keys are not automatically generated.

[Jon]

After further testing, determined that my patch did not actually resolve
the issue.

Seems to be an issue with triggering the following sub:

check_rsa_keys () {
    #Checks for the existance of RSA keys and generates them if necessary
    RSA1_KEY=/etc/ssh/ssh_host_key
    RSA_KEY=/etc/ssh/ssh_host_rsa_key
    DSA_KEY=/etc/ssh/ssh_host_dsa_key

    if [ ! -s $RSA_KEY ] || [! -s $RSA1_KEY] || [! -s $DSA_KEY]; then
        exec /usr/sbin/dpkg-reconfigure openssh-server
    fi
}

Initially, I had added the above if/then statement to my /etc/init.d/ssh
script towards the beginning (starting at line 13 to be exact) before I
created the subroutine and the patch.

Pardon my blonde moment.

That being said, -where- can we add a check for the existence of the
host keys?

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https://bugs.launchpad.net/bugs/876910

Title:
  When starting open ssh server without host keys in /etc/ssh/, the keys
  are not automatically generated.

Status in “openssh” package in Ubuntu:
  Incomplete

Bug description:
  System Information
  1) lsb_release -rd
  Description:    Ubuntu 11.10
  Release:        11.10

  SSH Version
  2) apt-cache policy openssh-server
  openssh-server:
    Installed: 1:5.8p1-7ubuntu1
    Candidate: 1:5.8p1-7ubuntu1
    Version table:
   *** 1:5.8p1-7ubuntu1 0
          500 http://us.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages
          100 /var/lib/dpkg/status

  Expected Behavior:
  3) SSH should automatically create host keys when it detect the host keys are not present in /etc/ssh

  Observed Behavior:
  4) SSH did not generate host keys

  Solution:
  5) Created the attached patch to resolve the issue locally.  Presented as a solution to the problem.
  -- Check for existence of /etc/ssh/*_host_*
  -- create host keys unless exists

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: openssh-server 1:5.8p1-7ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-12.20-server 3.0.4
  Uname: Linux 3.0.0-12-server x86_64
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  Date: Mon Oct 17 16:12:28 2011
  InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: openssh
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.init.d.ssh: 2011-10-17T15:57:55.578332

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