How and where can I check what keys have been added with ssh-add to my ssh-agent ?


Use the -l option to ssh-add to list them by fingerprint.

$ ssh-add -l
2048 72:...:eb /home/gert/.ssh/mykey (RSA)

Or with -L to get the full key in OpenSSH format.

$ ssh-add -L
ssh-rsa AAAAB3NzaC1yc[...]B63SQ== /home/gert/.ssh/id_rsa

The latter format is the same as you would put them in a ~/.ssh/authorized_keys file.

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    [rahul@srv1~]$ ssh-add -l Could not open a connection to your authentication agent. – Rahul Patil Dec 20 '12 at 11:11
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    @RahulPatil Are you running an SSH agent on that machine? Run this on the same machine as to which you've added the keys, not the remote one! – gertvdijk Dec 20 '12 at 11:18
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    You could run this command on the remote host if key agent forwarding is enabled. – Patrick Mar 30 '13 at 19:58
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    Example: ssh-agent sh -c 'ssh-add; ssh-add -l' – kenorb Mar 26 '15 at 21:15
  • @RahulPatil To run the ssh agent eval `ssh-agent -s`. stackoverflow.com/questions/17846529/… – Clay Jul 28 '15 at 17:08

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