[arm-allstar] Ssh password

[David McGough]

Kevin,

As long as it's a fairly strong password, there isn't an easy way to find
the plain-text for a lost/changed password. The plain-text isn't stored on
the system, only a one-way hashed result gets stored. The only way to 
actually recover the password is via brute force---like a dictionary 
attack.

However, as Patrick mentioned, you can replace the password with a new 
one. If you've got a "back door" account with root privilege, you can 
login via ssh, become root and replace the password with the 'passwd root' 
command.

If you can't get in via ssh, you must go to the node's location and
directly modify the SD card.  The hashed passwords are stored in the
/etc/shadow file.  This is a text readable file and you can edit manually
and replace to lost password field.  I'll send you more details about this 
method, if you need to perform this operation.

73, David KB4FXC



On Thu, 5 Dec 2019, "Kevin Halton via ARM-allstar" wrote:

> I am having a problem with a remote node. I tried to ssh in last night 
and the password is not recognized! There are only two people who have 
access to node and could have changed it. 
> 
> Short of burning a new image is there a way to recover the password 
from the node?
> 
> 
> 
> Sent from my iPhone
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