Allow to run SSHd in Installer (12.2 patch)

[Ben RUBSON]

> On 2 Mar 2020, at 13:09, Ben RUBSON <ben.rubson at gmx.com> wrote:
> 
> Hi,
> 
> I've done some work to allow to connect to FreeBSD installer through SSH.
> It can be useful for example if we have specific tasks to perform before installation, such as disks configuration etc...
> Working through a SSH connection is much more convenient than in front of a console.
> FreeBSD installer can then also be used as a rescue disk.
> 
> To achieve this, I've modified FreeBSD installer, so that after having installed SSHd, if performs following configuration modifications :
> - generate host keys into /var/ssh (as default /etc/ssh is not writable) ;
> - only allow keys authentication ;
> - allow root authentication ;
> - read authorized_keys file from /var/ssh (as default homedirs are not writable).
> 
> SSHd can then be started thanks to the installer shell : service sshd start
> And a public key put into for example /var/ssh-keys/root/authorized_keys, thanks to fetch or whatever.
> 
> Work is here :
> https://github.com/freebsd/freebsd/pull/156
> Rather simple, and ready to be merged.
> 
> This job is more than 2 years old, I would then really be glad if we could see this in 12.2 installation ISOs.
> It would prevent me from having to modify the new ISO files to implement this patch.

Any thoughts ? :)

Thank you very much !

Ben