原文网址：
http://blog.csdn.net/feeling450/article/details/53067563
github clone "Permission denied (publickey). fatal: Could not read from remote repository."
LZ用git不久，第一次从github clone项目遇见一下问题
$ git clone git@github.com:xiaolongzuo/niubi-job.gitCloning into 'niubi-job'...Permission denied (publickey).fatal: Could not read from remote repository.
解决办法：
1.ssh -v git@github.com
测试ssh连接是否成功，如LZ显示如下：
$ ssh -v git@github.com
OpenSSH_7.3p1, OpenSSL 1.0.2j 26 Sep 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to github.com [192.30.253.113] port 22.
debug1: Connection established.
debug1: identity file /c/Users/Administrator/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/Administrator/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.3
debug1: Remote protocol version 2.0, remote software version libssh-0.7.0
debug1: no match: libssh-0.7.0
debug1: Authenticating to github.com:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256@libssh.org
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8
debug1: Host 'github.com' is known and matches the RSA host key.
debug1: Found key in /c/Users/Administrator/.ssh/known_hosts:1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /c/Users/Administrator/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /c/Users/Administrator/.ssh/id_dsa
debug1: Trying private key: /c/Users/Administrator/.ssh/id_ecdsa
debug1: Trying private key: /c/Users/Administrator/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey).
2. ssh-agent -s
$ ssh-agent -s
SSH_AUTH_SOCK=/tmp/ssh-GTpABX1a05qH/agent.404; export SSH_AUTH_SOCK;
SSH_AGENT_PID=13144; export SSH_AGENT_PID;
echo Agent pid 13144;
3. ssh-add ~/.ssh/id_rsa
$ ssh-add ~/.ssh/id_rsa
Could not open a connection to your authentication agent.
LZ这一步报错了，继续执行：eval `ssh-agent -s`
无错请忽略以下步骤
$ eval `ssh-agent -s`
Agent pid 24460
再次执行ssh-add ~/.ssh/id_rsa
$ ssh-add ~/.ssh/id_rsa
Identity added: /c/Users/Administrator/.ssh/id_rsa (/c/Users/Administrator/.ssh/id_rsa)
4.将客户端生成的key添加到github账户
首先使用 clip < ~/.ssh/id_rsa.pub 或者文本编辑拷贝id_rsa.pub文本内容
到github右上角账户管理-Setting下面找到左侧“SSH and
GPG keys”菜单，接着点击“Add SSH key”，在"title"栏输入一个自己喜欢的标题，“key”栏中粘贴刚刚复制的公钥内容，最后点击“Add key”按钮。
5.最后一步,验证key
$ ssh -T git@github.com
Hi JsonJu! You've successfully authenticated, but GitHub does not provide shell access.
接下来就可以愉快的去clone github上优秀的项目了。
转载于:https://www.cnblogs.com/myworld2018/p/9178922.html
