Github 无法识别 ssh 密钥
Github not recognizing ssh key
我使用 ssh 密钥和 github 有一段时间了。突然我无法推动，我得到了 Permission denied (publickey) error.
到目前为止，这是我尝试过的方法：
- 已检查 ssh 密钥在正确的目录中 (
~/.ssh)
- 尝试将我的 public 密钥重新上传到 github（我收到一条消息说该密钥已经存在）
- 仔细检查我系统上
ssh-add -l -E sha256 的输出是否与我 github 帐户 上的 ssh 设置中的字符串一致
- 已按照 github 文档的“ssh 疑难解答”部分中的所有步骤进行操作。 (一切好像gucci)
- 用头撞墙一个小时
到目前为止没有任何帮助。这是我最后的手段。我将非常感谢任何和所有建议。这是我的 ssh -vT git@github.com
的输出
OpenSSH_7.2p2 Ubuntu-4ubuntu2.10, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /home/MY_USER_NAME/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to github.com [140.82.114.3] port 22.
debug1: Connection established.
debug1: identity file /home/MY_USER_NAME/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.10
debug1: Remote protocol version 2.0, remote software version babeld-fb957b4d
debug1: no match: babeld-fb957b4d
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: rsa-sha2-512
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 /home/MY_USER_NAME/.ssh/known_hosts:4
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,ssh-ed25519,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/MY_USER_NAME/.ssh/id_rsa
debug1: Server accepts key: pkalg rsa-sha2-512 blen 279
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_dsa
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_ecdsa
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey).
更新：
我在使用具有不同密钥集的不同 github 帐户时遇到了同样的问题。同一台电脑。
我的回答可能没有帮助或听起来很傻。但在我的情况下，我只是删除 know_hosts 文件并再次删除 pull/push，然后一切都按预期进行。
所以，我终于想通了。
原来我的电脑只是不喜欢我有多个 ssh 密钥这一事实（可能是因为其中一个受密码保护而其他则没有？）从 ~/.ssh 目录中移动除了一个 ssh 密钥之外的所有 ssh 密钥重新启动计算机解决了我的问题。我以前曾尝试删除除一个 ssh 密钥之外的所有密钥，但显然还需要重新启动。
请注意，如果您有旧的 DSA 密钥，您会看到“服务器接受密钥：”，但最终仍会失败。 GH 正在逐步淘汰 DSA 密钥，因此它可能 'accepted'，但不允许继续。
我使用 ssh 密钥和 github 有一段时间了。突然我无法推动，我得到了 Permission denied (publickey) error.
到目前为止，这是我尝试过的方法：
- 已检查 ssh 密钥在正确的目录中 (
~/.ssh) - 尝试将我的 public 密钥重新上传到 github（我收到一条消息说该密钥已经存在）
- 仔细检查我系统上
ssh-add -l -E sha256的输出是否与我 github 帐户 上的 ssh 设置中的字符串一致
- 已按照 github 文档的“ssh 疑难解答”部分中的所有步骤进行操作。 (一切好像gucci)
- 用头撞墙一个小时
到目前为止没有任何帮助。这是我最后的手段。我将非常感谢任何和所有建议。这是我的 ssh -vT git@github.com
OpenSSH_7.2p2 Ubuntu-4ubuntu2.10, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /home/MY_USER_NAME/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to github.com [140.82.114.3] port 22.
debug1: Connection established.
debug1: identity file /home/MY_USER_NAME/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/MY_USER_NAME/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.10
debug1: Remote protocol version 2.0, remote software version babeld-fb957b4d
debug1: no match: babeld-fb957b4d
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: rsa-sha2-512
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 /home/MY_USER_NAME/.ssh/known_hosts:4
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,ssh-ed25519,ecdsa-sha2-nistp521,ecdsa-sha2-nistp384,ecdsa-sha2-nistp256,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ssh-dss>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /home/MY_USER_NAME/.ssh/id_rsa
debug1: Server accepts key: pkalg rsa-sha2-512 blen 279
debug1: Authentications that can continue: publickey
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_dsa
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_ecdsa
debug1: Trying private key: /home/MY_USER_NAME/.ssh/id_ed25519
debug1: No more authentication methods to try.
Permission denied (publickey).
更新： 我在使用具有不同密钥集的不同 github 帐户时遇到了同样的问题。同一台电脑。
我的回答可能没有帮助或听起来很傻。但在我的情况下，我只是删除 know_hosts 文件并再次删除 pull/push，然后一切都按预期进行。
所以，我终于想通了。
原来我的电脑只是不喜欢我有多个 ssh 密钥这一事实（可能是因为其中一个受密码保护而其他则没有？）从 ~/.ssh 目录中移动除了一个 ssh 密钥之外的所有 ssh 密钥重新启动计算机解决了我的问题。我以前曾尝试删除除一个 ssh 密钥之外的所有密钥，但显然还需要重新启动。
请注意，如果您有旧的 DSA 密钥，您会看到“服务器接受密钥：”，但最终仍会失败。 GH 正在逐步淘汰 DSA 密钥，因此它可能 'accepted'，但不允许继续。