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Bug#875532: openssh-client: Please set UpdateHostKeys to true by default



Package: openssh-client
Version: 1:7.2p2-4ubuntu2.2
Severity: wishlist

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Dear Maintainer,

I am about to move my ssh server that serves gitolite
repositories. All users use cname to get to the server, whilst the
system sshd server is used. I want to use the ssh host key rotation,
and will specify both the old servers key and the new server key in
the config to perform the key rotation.

However, this will not update the clients.

Please consider setting UpdateHostKeys to true by default in
/etc/ssh/ssh_config.

Regards,

Dimitri.

- -- System Information:
Debian Release: stretch/sid
  APT prefers xenial-updates
  APT policy: (500, 'xenial-updates'), (500, 'xenial-security'), (500, 'xenial'), (100, 'xenial-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.4.0-83-generic (SMP w/8 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-client depends on:
ii  adduser           3.113+nmu3ubuntu4
ii  dpkg              1.18.4ubuntu1.2
ii  libc6             2.23-0ubuntu9
ii  libedit2          3.1-20150325-1ubuntu2
ii  libgssapi-krb5-2  1.13.2+dfsg-5ubuntu2
ii  libselinux1       2.4-3build2
ii  libssl1.0.0       1.0.2g-1ubuntu4.8
ii  passwd            1:4.2-3.1ubuntu5.3
ii  zlib1g            1:1.2.8.dfsg-2ubuntu4.1

Versions of packages openssh-client recommends:
ii  xauth  1:1.0.9-1ubuntu2

Versions of packages openssh-client suggests:
pn  keychain                         <none>
pn  libpam-ssh                       <none>
pn  monkeysphere                     <none>
ii  ssh-askpass-gnome [ssh-askpass]  1:7.2p2-4ubuntu2.2

- -- Configuration Files:
/etc/ssh/ssh_config changed:
Host *
    HashKnownHosts yes
    GSSAPIAuthentication yes
    GSSAPIDelegateCredentials no


- -- no debconf information

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