Git – Permission denied (publickey)

This is a very common issue that most users face after installation of GIT.

Extensive troubleshooting of this GIT issue “Git – Permission denied (publickey)” can be done with the below command:

ssh -vT git@github.com

Output:

OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007
debug1: Connecting to github.com [204.232.175.90] port 22.
debug1: Connection established.
debug1: identity file /c/Users/arvenkataraman/.ssh/identity type -1
debug1: identity file /c/Users/arvenkataraman/.ssh/id_rsa type -1
debug1: identity file /c/Users/arvenkataraman/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debia
n-6+squeeze1+github9
debug1: match: OpenSSH_5.5p1 Debian-6+squeeze1+github9 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_4.6
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
The authenticity of host 'github.com (204.232.175.90)' 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)? yes
Warning: Permanently added 'github.com,204.232.175.90' (RSA) to the list of know
n hosts.
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /c/Users/arvenkataraman/.ssh/identity
debug1: Trying private key: /c/Users/arvenkataraman/.ssh/id_rsa
debug1: Offering public key: /c/Users/arvenkataraman/.ssh/id_dsa
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
Permission denied (publickey).

 

Solution:

Step 1: Navigate to .ssh directory inside your home directory

         cd ~/.ssh

Step 2: Generate the public/private rsa key pair

         ssh-keygen

Step 3: Copy the SSH key to the clipboard using the below command

         cat id_rsa.pub | clip

Step 4: Navigate to your GIT repository in https://github.com/

Step 5: Go to Account Settings

accountsetting

Step 6: Under Account Setting select SSH keys

ssh

Step 7:  Click on Add SSH key, paste the key copied to the clipboard (in Step 3) and store the key

saveSSH

 

 

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Trackbacks

  1. [...] Then there was trouble connecting to the github client which contained the Cytoscape source code (“the authenticity of host ‘github.com (204.232.175.90)’ can’t be established”), which was very similar to the error on this webpage: http://technologyandleadership.com/git-permission-denied-publickey/. [...]

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