Modem reboot by SSH if network loss

[triwave]

Catman I was triggered to answer based on :

@jezzalencko

I do notice there is a ‘dropbear_rsa_host_key’ file, so not sure if that would be helpful.

I think it could be helpful if he can extract the key from there and copy to the vera box, that way no write needed on the router.

[Catman]

I don’t think so, but only one way to tell
C

[jezzalencko]

@triwave

dropbear_rsa_host_key

So looking at this dropbear_rsa_host_key host file with “vi” it showed strange content, starting with this string…
"^@^@^@^Gssh-rsa^…
So it seems unlike the format I expected for key file. i.e.
ssh-rsa AAAAB3NzaC1yc…C1vSjw2Xcm9KU9mXJtKRj @

Reading here, it seems dropbear_rsa_host_key is a ‘private’ key but I need to create a ‘public’ key under /.ssh/authorized_keys.
Which clearly I can’t do because I don’t have RW access to create folders & files.

Also, is there a SSH version issue between the dropbear key and the key that would be used on Vera? Reading here, it seems I would perhaps need to convert the dropbear key format to a standard SSH format recognisable by Vera with:
dropbearkey -y -f ~/.ssh/id_rsa | grep “^ssh-rsa ” >> authorized_keys

But again, I’m unable to do this because of the ‘Read Only’ limitation on the Router. And the “dropbearkey” command on the Router isn’t available or recognised.

Any ideas?

[Catman]

Not from me, I’m afraid. I think you’re out of luck

C

[triwave]

If dropbearkey was on the router you could try using an external USB drive to output the key format you need to the USB , but based on comment it sounds like that utility is not present. I’m struggling to think of another way … if you figure something out please post your solution Good luck