[Buildroot] root passwd asked for reset every ssh login

[Buildroot] root passwd asked for reset every ssh login

[daggs]

Greetings,

I've created a small image with ssh, I'm trying to ssh into the machine with root account (I've enabled root access for ssh) and I keep getting a msg that tells me the passwd has expired and that I need to replace it. after I replace it the connection is terminated and I need to reconnect.
when I do reconnect and enter the new passwd, I'm greeted with the same passwd change msg.
e.g. I cannot login as root to the machine via ssh.

any ideas how to fix this?

Thanks,
Dagg.

[Buildroot] root passwd asked for reset every ssh login

[Zoltan Gyarmati]

Dear Dagg,


you are using openssh in your image, right? The problem probably comes
from the system time not properly set or not kept by an RTC on your
target platform, which messes up openssh's file timestamp handling. In
my experience in such a scenario (target system without RTC), it's
easier to use dropbear as SSH server implementation, as it handles this
differently. (Assuming of course that you don't need any specific
feature of the OpenSSH implementation)


Regards,

Zoltan Gyarmati
https://zgyarmati.de

On 11/22/2016 07:33 AM, daggs wrote:
> Greetings,
>
> I've created a small image with ssh, I'm trying to ssh into the machine with root account (I've enabled root access for ssh) and I keep getting a msg that tells me the passwd has expired and that I need to replace it. after I replace it the connection is terminated and I need to reconnect.
> when I do reconnect and enter the new passwd, I'm greeted with the same passwd change msg.
> e.g. I cannot login as root to the machine via ssh.
>
> any ideas how to fix this?
>
> Thanks,
> Dagg.
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot


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[Buildroot] root passwd asked for reset every ssh login

[daggs]

Greetings Zoltan,

> Dear Dagg,
> 
> 
> you are using openssh in your image, right? The problem probably comes
> from the system time not properly set or not kept by an RTC on your
> target platform, which messes up openssh's file timestamp handling. In
> my experience in such a scenario (target system without RTC), it's
> easier to use dropbear as SSH server implementation, as it handles this
> differently. (Assuming of course that you don't need any specific
> feature of the OpenSSH implementation)
> 
> 
> Regards,
> 
> Zoltan Gyarmati

you are right, my arm board does not have any rtc, thanks for the help, I'll use dropbear.

Dagg.