Bug#594175: Bug#712859: Bug#594175: openssh-server: support generation of ssh host keys in init script
On 2018-09-19 05:18 AM, Guido Günther wrote:
> Hi,
> On Wed, Jan 10, 2018 at 10:36:51AM +0100, Guido Günther wrote:
>> Hi,
>> On Wed, Jul 13, 2016 at 10:27:11AM +0200, Guido Günther wrote:
>>> On Tue, Aug 24, 2010 at 12:23:52PM +0200, Michael Prokop wrote:
>>>> Package: openssh-server
>>>> Version: 1:5.5p1-4
>>>> Severity: wishlist
>>>>
>>>>
>>>> I mentioned this issue in my talk "State of Debian (based) Linux
>>>> live systems in 2010" at Debconf10. Colin suggested to talk about
>>>> it later on, so I'm reporting this as a wishlist item.
>>>>
>>>> It would be nice if the sshd init script would support generation of
>>>> ssh host keys - iff there aren't any keys present yet.
>>>>
>>>> The (main) use case for this feature are live systems where you
>>>> usually don't want to ship pre-generated keys on one hand, on the
>>>> other hand not everyone wants to generate the host keys
>>>> automatically on each boot (consuming time and ressources).
>>>>
>>>> Taking care of key generation as someone invokes '/etc/init.d/ssh
>>>> start' works fine for the Grml live systems and its users. What
>>>> we're doing is something as simple as:
>>>>
>>>> ,---- [ relevant snipped of Grml's ssh initscript ]
>>>> | RSA1_KEY=/etc/ssh/ssh_host_key
>>>> | RSA_KEY=/etc/ssh/ssh_host_rsa_key
>>>> | DSA_KEY=/etc/ssh/ssh_host_dsa_key
>>>> |
>>>> | case "$1" in
>>>> | start)
>>>> | [...]
>>>> | if ! test -f $RSA1_KEY ; then
>>>> | log_action_msg "Generating SSH1 RSA host key..."
>>>> | $KEYGEN -t rsa1 -f $RSA1_KEY -C '' -N '' || exit 1
>>>> | fi
>>>> |
>>>> | if ! test -f $RSA_KEY ; then
>>>> | log_action_msg "Generating SSH RSA host key..."
>>>> | $KEYGEN -t rsa -f $RSA_KEY -C '' -N '' || exit 1
>>>> | fi
>>>> |
>>>> | if ! test -f $DSA_KEY ; then
>>>> | log_action_msg "Generating SSH2 DSA host key..."
>>>> | $KEYGEN -t dsa -f $DSA_KEY -C '' -N '' || exit 1
>>>> | fi
>>>> | [...]
>>>> `----
>>>>
>>>> Would be great if that feature would be available in Debian/Ubuntu
>>>> based (live) systems as well. :)
>>>
>>> I wonder if we should just create a openssh-host-keys package that ships
>>> a systemd unit/init script to create the keys (as (I think it was
>>> Christian) suggested at debconf.
>>>
>>> This just came up here as well
>>>
>>> https://www.redhat.com/archives/libguestfs/2016-July/msg00090.html
>>>
>>
>> Michael is grml working around this somehow? If so can you attach a
>> link?
>
> I have moved things into a Debian package now:
>
> https://source.puri.sm/Librem5/gen-sshd-host-keys
Have you tried "ssh-keygen -A" ? I believe it would be the simplest way
to generated the missing host keys.
Regards,
Simon
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