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Editorial Team
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Asked: 2026-06-05T08:38:55+00:00

I followed this tutorial to generate SSH key on github: At step number 5

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I followed this tutorial to generate SSH key on github:
At step number 5 of the above linked tutorial,after I type ssh -T git@github.com I am supposed to see this:

The authenticity of host 'github.com (207.97.227.239)' can't be established.
# RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
# Are you sure you want to continue connecting (yes/no)?

I, however, see this:

Agent admitted failure to sign using the key.
Permission denied (publickey).

Then later when I tried to push a file to repository using git push -u origin master, I get this:

Agent admitted failure to sign using the key.
Permission denied (publickey).
fatal: The remote end hung up unexpectedly

I think the problem is with the set up of SSH key.
How can I get solve this problem?

I am using Linux.

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1 Answer

  1. Editorial Team

    After googleing I found that most possible chances is that your key is corrupt.

    and the things that you can try is…

    and ssh-add is also the one which has solve the problem of lots of people ssh-add ~/.ssh/id_rsa

    try logout and login
    or

    hear is few more things that you can try http://sampathm.blogspot.in/2011/06/agent-admitted-failure-to-sign-using.html
    and
    SSH cannot authenticate to git@github.com
    hope this help

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