git连接报错：Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)

　　在Linux上已经安装过git（自己搭建）了，本机（windows）想连接过去，通过git bash敲了下clone命令提示没权限：

$ git clone git@111.11.111.11:code.git
Cloning into 'code'...
The authenticity of host '111.11.111.11 (111.11.111.11)' can't be established.
ECDSA key fingerprint is SHA256:7jmL7Nrr9zJ7psJd3Zcfr4UckRNOMkgwK/ae9dsCgaw.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '111.11.111.11' (ECDSA) to the list of known hosts.
git@111.11.111.11's password:
Connection closed by 111.11.111.11 port
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

　　第一次连接失败很正常，毕竟没有设置账号信息，但第二次连接敲了自己刚设置的密码，竟然一直提示没权限

$ git clone git@111.11.111.11:code.git
Cloning into 'code'...
git@111.11.111.11's password:
Permission denied, please try again.
git@111.11.111.11's password:
Permission denied, please try again.
git@111.11.111.11's password:
git@111.11.111.11: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,pas                                                                                                                sword).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

　　蒙圈了，密码对的啊。看下日志：

$ ssh -vT git@111.11.111.11
OpenSSH_7.6p1, OpenSSL 1.0.2n   Dec
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to 111.11.111.11 [111.11.111.11] port .
debug1: Connection established.
debug1: identity file /c/Users/wulf/.ssh/id_rsa type
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_rsa-cert type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_dsa type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_dsa-cert type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_ecdsa type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_ecdsa-cert type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_ed25519 type -
debug1: key_load_public: No such file or directory
debug1: identity file /c/Users/wulf/.ssh/id_ed25519-cert type -
debug1: Local version string SSH-2.0-OpenSSH_7.
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.
debug1: match: OpenSSH_7. pat OpenSSH* compat 0x04000000
debug1: Authenticating to 111.11.111.11: as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: aes128-ctr MAC: umac--etm@openssh.com comp                                                                                                                ression: none
debug1: kex: client->server cipher: aes128-ctr MAC: umac--etm@openssh.com comp                                                                                                                ression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:7jmL7Nrr9zJ7oooo5Zcfr4UckRNO                                                                                                                MkgwK/ae9dsCgaw
debug1: Host '111.11.111.11' is known and matches the ECDSA host key.
debug1: Found key in /c/Users/wulf/.ssh/known_hosts:
debug1: rekey after  blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after  blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-,rsa-sha2->
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mi                                                                                                                c,password
debug1: Next authentication method: publickey
debug1: Offering public key: RSA SHA256:gXnx5odooo7yK+Imse/ggjIzZdooooJwCU6T6PEy                                                                                                                spk /c/Users/wulf/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mi                                                                                                                c,password
debug1: Trying private key: /c/Users/wulf/.ssh/id_dsa
debug1: Trying private key: /c/Users/wulf/.ssh/id_ecdsa
debug1: Trying private key: /c/Users/wulf/.ssh/id_ed25519
debug1: Next authentication method: password

　　然后又死循环了，让我输入密码。看日志里这个c/Users/wulf/.ssh目录下有啥东西，就发现原来这里有我的公钥：

$ cat /c/Users/wulf/.ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAACAQCf20s0rabgMRn8CCCCC/+VC/wS5x/dvIYoG+TP23bHWn9gD/AXizrkds5geX9AG90oVRqf+RfTvLFlaNMrzK

　　公钥太长，上面就只是随便贴了点。后来才发现linux上的服务端git根本不认识你，因为你有的是你自己的密码，人家那还没有你的公钥呢，得去它那里设置一下。

　　登陆linux下的111.11.111.11，把上面那段公钥贴到服务端authorized_keys里：

vi /home/git/.ssh/authorized_keys

　　贴好后保存后再去windows的git bash本地连下，这次ok了：

$ git clone git@111.11.111.11:code.git
Cloning into 'code'...
warning: You appear to have cloned an empty repository.