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ssh PasswordAuthentication=no

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# 1  
Old 03-21-2012
ssh PasswordAuthentication=no
Hi all,
I'd like to check if connecting to a remote host ask for a password or not.

I thought that using this command:
  • ssh -l user RemoteHost -o PasswordAuthentication=no pwd

the output would be the current directory or an error code.
If I try to connect to a RemoteHost with which there have been a key exchange everything works fine, instead, if I connect with a RemoteHost without key exchange it just ask for password.

Is there another option to achieve what I'm looking for?

Thanks,
Evan
# 2  
Old 03-21-2012
You question is not clear to me..
If there is no ssh key exchanged between two hosts then it will definitely prompt for password..
# 3  
Old 03-21-2012
How can I catch this behaviour ("prompt for password") in a shell script?
If I write a shell script where I connect to remote host and there is no key exchange, the script stops at password prompt and don't go on...

Kind regards,
Evan
# 4  
Old 03-21-2012
If you are not sure whether ssh keys are exchanged between host then its better to write script that interactively enters password.
use spawn and expect.
refer: https://www.unix.com/unix-advanced-ex...rd-change.html
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