On 12/13/23 08:24, Dave Close wrote:
I asked:
> For example, given the message,
> Accepted publickey for ... from ... port ... ssh2: RSA
> SHA256:QSyKp5SJ8gJFcYtbtb9SQ1axtqSg7fEoQBiZf3kPXgU
> what is the meaning of the RSA value listed? Is it a "fingerprint"?
> How can I compare it to the various keys on my system?
Roberto Ragusa answered:
> ssh-keygen -lf ~/.ssh/id_rsa.pub
>
> This comes up easily on Google.
I wasn't asking for the value related to my public key. I'm not likely
to see whatever the related value for that key might be in an "Accepted
publickey" message on my own system.
My question was, when someone connects to my system, which key in my
authorized_keys file were they using? That seems to have been a more
difficult question. But see my next message.
Since the command above wants the public key, you just have to provide
it with the lines in your authorized_keys.
e.g.
while read a; do echo "$a"|ssh-keygen -lf -;done <~/.ssh/authorized_keys
Regards.
--
Roberto Ragusa mail at robertoragusa.it