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Bug#850614: openssh-server: output error about missing DSA key



Package: openssh-server
Version: 1:7.4p1-5
Severity: normal


Dear Maintainer,

each time I connect to this system, I get this error:

  sshd[788]: error: Could not load host key: /etc/ssh/ssh_host_dsa_key

This system is a recent installation with a recently installed openssh-server and as such, a DSA key has not been generated:

# ls -l /etc/ssh/
total 576
-rw-r--r-- 1 root root 553122 janv.  3 15:43 moduli
-rw-r--r-- 1 root root   1723 janv.  3 15:43 ssh_config
-rw-r--r-- 1 root root   3381 janv.  4 21:08 sshd_config
-rw------- 1 root root    227 janv.  4 21:08 ssh_host_ecdsa_key
-rw-r--r-- 1 root root    173 janv.  4 21:08 ssh_host_ecdsa_key.pub
-rw------- 1 root root    399 janv.  4 21:08 ssh_host_ed25519_key
-rw-r--r-- 1 root root     93 janv.  4 21:08 ssh_host_ed25519_key.pub
-rw------- 1 root root   1675 janv.  4 21:08 ssh_host_rsa_key
-rw-r--r-- 1 root root    393 janv.  4 21:08 ssh_host_rsa_key.pub


Not creating a DSA key during installation is fine, but outputting error messages about its absence is not.


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.8.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages openssh-server depends on:
ii  adduser                3.115
ii  debconf [debconf-2.0]  1.5.59
ii  dpkg                   1.18.18
ii  init-system-helpers    1.46
ii  libaudit1              1:2.6.7-1
ii  libc6                  2.24-8
ii  libcomerr2             1.43.3-1
ii  libgssapi-krb5-2       1.15-1
ii  libkrb5-3              1.15-1
ii  libpam-modules         1.1.8-3.5
ii  libpam-runtime         1.1.8-3.5
ii  libpam0g               1.1.8-3.5
ii  libselinux1            2.6-3
ii  libssl1.0.2            1.0.2j-5
ii  libsystemd0            232-8
ii  libwrap0               7.6.q-26
ii  lsb-base               9.20161125
ii  openssh-client         1:7.4p1-5
ii  openssh-sftp-server    1:7.4p1-5
ii  procps                 2:3.3.12-3
ii  ucf                    3.0036
ii  zlib1g                 1:1.2.8.dfsg-4

Versions of packages openssh-server recommends:
ii  libpam-systemd  232-8
ii  ncurses-term    6.0+20161126-1
ii  xauth           1:1.0.9-1

Versions of packages openssh-server suggests:
ii  ksshaskpass [ssh-askpass]  4:5.8.4-1
pn  molly-guard                <none>
pn  monkeysphere               <none>
pn  rssh                       <none>
ii  ssh-askpass                1:1.2.4.1-9
pn  ufw                        <none>

-- debconf information:
  openssh-server/permit-root-login: false

-- 
Laurent.


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