我想git push从本地 debian 10 用户到我的服务器 (debian 10)，我已在该服务器中使用 ssh 公钥身份验证以用户名设置了一个 git 服务器git。问题是：它仍然要求输入密码。
首先，通过密码推送可以正常工作。此外，从本地用户通过 ssh 连接到同一服务器上使用相同公钥的其他用户authorized_keys也可以正常工作。因此，我假设本地计算机上的密钥设置是正确的，显然我没有设置私钥密码。
的权限/home/git/.ssh如下，这正是为工作远程用户设置的。没有文件/home/git/.ssh/known_hosts。
drwxr-xr-x 12 git git 4096 Dec 17 11:56 /home/git/
drwx------ 12 git git 4096 Dec 17 11:56 /home/git/.ssh
-rw-r--r-- 1 git git 788 Apr 27 23:21 /home/git/.ssh/authorized_keys
编辑3：设置LogLevel VERBOSE仅/var/log/auth.log会产生以下内容，除此之外，只有提供密码或中止时才会有条目。
Connection from local_IP port different_PORT on remote_IP port PORT
Failed publickey for git from local_IP port different_PORT ssh2: ...
虽然尝试ssh -p PORT -vvv git@remot_server得到以下结果并且我可以确定它与连接到工作远程用户的输出有何不同，但我无法弄清楚它的含义或错误所在。
OpenSSH_7.9p1 Debian-10+deb10u2, OpenSSL 1.1.1d 10 Sep 2019
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "remote_server" port PORT
debug2: ssh_connect_direct
debug1: Connecting to remote_server [IP] port PORT.
debug1: Connection established.
debug1: identity file /home/alfredo/.ssh/id_rsa type 0
debug1: identity file /home/alfredo/.ssh/id_rsa-cert type -1
debug1: identity file /home/alfredo/.ssh/id_dsa type -1
debug1: identity file /home/alfredo/.ssh/id_dsa-cert type -1
debug1: identity file /home/alfredo/.ssh/id_ecdsa type -1
debug1: identity file /home/alfredo/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/alfredo/.ssh/id_ed25519 type -1
debug1: identity file /home/alfredo/.ssh/id_ed25519-cert type -1
debug1: identity file /home/alfredo/.ssh/id_xmss type -1
debug1: identity file /home/alfredo/.ssh/id_xmss-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.9p1 Debian-10+deb10u2
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.9p1 Debian-10+deb10u2
debug1: match: OpenSSH_7.9p1 Debian-10+deb10u2 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to remote_server:PORT as 'git'
debug3: put_host_port: [remote_server]:PORT
debug3: hostkeys_foreach: reading file "/home/alfredo/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/alfredo/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [remote_server]:PORT
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:tx9hBR7W6A+sWd6gU3QzBou7IJUt9sD6VceTzYwX/AM
debug3: put_host_port: [IP]:PORT
debug3: put_host_port: [remote_server]:PORT
debug3: hostkeys_foreach: reading file "/home/alfredo/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/alfredo/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from [remote_server]:PORT
debug3: hostkeys_foreach: reading file "/home/alfredo/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/alfredo/.ssh/known_hosts:2
debug3: load_hostkeys: loaded 1 keys from [IP]:PORT
debug1: Host '[remote_server]:PORT' is known and matches the ECDSA host key.
debug1: Found key in /home/alfredo/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: Will attempt key: /home/alfredo/.ssh/id_rsa RSA SHA256:...
debug1: Will attempt key: /home/alfredo/.ssh/id_dsa
debug1: Will attempt key: /home/alfredo/.ssh/id_ecdsa
debug1: Will attempt key: /home/alfredo/.ssh/id_ed25519
debug1: Will attempt key: /home/alfredo/.ssh/id_xmss
debug2: pubkey_prepare: done
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/alfredo/.ssh/id_rsa RSA SHA256:...
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password
debug1: Trying private key: /home/alfredo/.ssh/id_dsa
debug3: no such identity: /home/alfredo/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/alfredo/.ssh/id_ecdsa
debug3: no such identity: /home/alfredo/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/alfredo/.ssh/id_ed25519
debug3: no such identity: /home/alfredo/.ssh/id_ed25519: No such file or directory
debug1: Trying private key: /home/alfredo/.ssh/id_xmss
debug3: no such identity: /home/alfredo/.ssh/id_xmss: No such file or directory
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
git@remote_server's password:
远程工作用户的变体形式位于此块的最后一个块中，其中说明了receive packet: type 60何时工作。
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
编辑2： sshd_config
# $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
Port PORT
PermitRootLogin no
AllowUsers user1 git
ChallengeResponseAuthentication no
LogLevel VERBOSE
UsePAM yes
X11Forwarding yes
PrintMotd no
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server