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I just created a set of SSH keys and used ssh-copy-id to copy it on to a remote server.

Upon trying to connect via ssh I got the error

sign_and_send_pubkey: signing failed: agent refused operation

Similarly, when trying to connect via MOSH I get asked for a passphrase even though these keys were made without a passphrase at all.

All of the permissions on my .ssh folder (and my home directory) were set to 700.

Looking at this answer led me to try

I think your ssh-agent isn't working ! Perform the following commands...

    eval ssh-agent -s 
    ssh-add

which immediately made the login work. The problem with this is that I do not want to always have to use ssh-agent, MOSH itself does not support SSH-Agent and so I am wondering if there is a way I can make my keys work without using ssh-agent. Can somebody explain to me if this is possible.

Note: The remote computer in this case is a Raspberry PI running Pidora.

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Startec
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  • `ssh username@ipaddress` Also, the other way, with mosh, was just by opening the chrome app and typing in the username and password – Startec Aug 23 '16 at 20:58
  • For mosh there is only one way to upload a key, and only one at a time so yes it knows which key to use. The name of my key file, used in both, is just `id_rsa` – Startec Aug 23 '16 at 21:03
  • your permissions might still be wrong e.g. some should be 644 see alex's answer here http://superuser.com/questions/215504/permissions-on-private-key-in-ssh-folder – barlop Aug 23 '16 at 23:20
  • I don't like *ssh-agent* either, and do not use it. I have the usual *config* file in *~/.ssh*, with the keys associated to the hosts, and also the usual instruction *IdentitiesOnly yes* for all hosts. Of course, this means I have to type in the key password every time, which does not bother me. – MariusMatutiae Aug 24 '16 at 06:16

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