Configuration Issues

[Matt Johnston]

Hi Kenny,

I don't think I've seen that problem before. Does Dropbear log anything in /var/log/auth.log or similar? 
Or if logging isn't set up on the system, if you run dropbear -F -E it will log to the console.
The clock shouldn't make any difference.

Cheers,
Matt

> On Thu 20/6/2019, at 11:15 am, Kenny Koller <kenny at stealthspacecompany.com> wrote:
> 
> Hi,
> 
> I'm using Xilinx's 2019.1 Petalinux system which uses Dropbear 2018.76 by default. The target is
> a Zynq 7000 running Linux.
> 
> The first issue is that with the open-ssh client the first password attempt fails every time. The
> second attempt works. This was before I configured any host/login keys. A console login does not
> have this issue.
> 
> The second issue is that with the host/login keys in place I continue to be prompted twice when
> using ssh. With dbclient I am rejected altogether:
> 
> radsys at radsys-nuc:~$ dbclient root at 10.160.33.150 <mailto:root at 10.160.33.150> -i ~/.ssh/id_rsa
> root at 10.160.33.150 <mailto:root at 10.160.33.150>'s password: 
> root at 10.160.33.150 <mailto:root at 10.160.33.150>'s password: 
> 
> dbclient: Connection to root at 10.160.33.150 <mailto:root at 10.160.33.150>:22 exited: Error reading: Connection reset by peer
> 
> My client system is Ubuntu 16.04 with the login (private) key stored as follows. It was generated
> with dropbearkey:
> 
> radsys at radsys-nuc:~$ ls -al .ssh
> drwx------  2 radsys radsys 4096 Jun 19 19:33 .
> drwxr-xr-x 35 radsys radsys 4096 Jun 17 19:20 ..
> -rw-------  1 radsys radsys  805 Jun 19 19:31 id_rsa
> 
> On the server/embedded side I have the public portion of the private key above in authorized_keys
> and a host key also generated using dropbearkey.
> 
> root at radio:~# ls -al /etc/dropbear
> drwxr-xr-x    2 root     root             0 Jun 20 02:25 .
> drwxr-xr-x   24 root     root             0 Jun 20 02:26 ..
> -rw-------    1 root     root           393 Jun 20 02:25 authorized_keys
> -rw-------    1 root     root           805 Jun 20 02:25 dropbear_rsa_host_key
> 
> Also, my clock is not set correctly on the embedded system. Is this an issue?
> 
> Help would be greatly appreciated.
> 
> Thanks,
> 
> Kenny

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