长话短说，我家里有两台电脑，一台运行 Kubuntu 20.04，另一台运行 Windows 10。我可以毫无问题地从 Windows SSH 到 Kubuntu，但我无法反向 SSH（Linux > Windows）。
我在 Windows 机器上有 2 个帐户，都设置为管理员；第二个帐户的密码非常简单（12345用于测试目的）。
ssh -vvv user@ip_adress输出：OpenSSH_8.2p1 Ubuntu-4ubuntu0.1, OpenSSL 1.1.1f 31 Mar 2020 debug2: resolve_canonicalize: hostname 192.168.100.16 is address debug2: ssh_connect_direct debug1: Connecting to 192.168.100.16 [192.168.100.16] port 22. debug1: Connection established. debug1: identity file /home/traptaku/.ssh/id_rsa type 0 debug1: identity file /home/traptaku/.ssh/id_rsa-cert type -1 debug1: identity file /home/traptaku/.ssh/id_dsa type -1 debug1: identity file /home/traptaku/.ssh/id_dsa-cert type -1 debug1: identity file /home/traptaku/.ssh/id_ecdsa type -1 debug1: identity file /home/traptaku/.ssh/id_ecdsa-cert type -1 debug1: identity file /home/traptaku/.ssh/id_ecdsa_sk type -1 debug1: identity file /home/traptaku/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /home/traptaku/.ssh/id_ed25519 type -1 debug1: identity file /home/traptaku/.ssh/id_ed25519-cert type -1 debug1: identity file /home/traptaku/.ssh/id_ed25519_sk type -1 debug1: identity file /home/traptaku/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /home/traptaku/.ssh/id_xmss type -1 debug1: identity file /home/traptaku/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_for_Windows_7.7 debug1: match: OpenSSH_for_Windows_7.7 pat OpenSSH* compat 0x04000000 debug2: fd 3 setting O_NONBLOCK debug1: Authenticating to 192.168.100.16:22 as 'traptaku' debug3: hostkeys_foreach: reading file "/home/traptaku/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file /home/traptaku/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys from 192.168.100.16 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,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],[email protected],[email protected],[email protected],ssh-ed25519,[email protected],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: ssh-rsa,rsa-sha2-512,rsa-sha2-256,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 debug2: compression stoc: none 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:XSbxZfme7XEpvbDXybRKzMEjC3AVze0f3Dc90clc/2M debug3: hostkeys_foreach: reading file "/home/traptaku/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file /home/traptaku/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys from 192.168.100.16 debug1: Host '192.168.100.16' is known and matches the ECDSA host key. debug1: Found key in /home/traptaku/.ssh/known_hosts:1 debug3: send packet: type 21 debug2: set_newkeys: mode 1 debug1: rekey out 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 in after 134217728 blocks debug1: Will attempt key: /home/traptaku/.ssh/id_rsa RSA SHA256:ZNwmYub4bVcSv2BUDA9b3i/lvMON2eIfppnbplBcpAs debug1: Will attempt key: /home/traptaku/.ssh/id_dsa debug1: Will attempt key: /home/traptaku/.ssh/id_ecdsa debug1: Will attempt key: /home/traptaku/.ssh/id_ecdsa_sk debug1: Will attempt key: /home/traptaku/.ssh/id_ed25519 debug1: Will attempt key: /home/traptaku/.ssh/id_ed25519_sk debug1: Will attempt key: /home/traptaku/.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,keyboard-interactive debug3: start over, passed a different list publickey,password,keyboard-interactive debug3: preferred 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/traptaku/.ssh/id_rsa RSA SHA256:ZNwmYub4bVcSv2BUDA9b3i/lvMON2eIfppnbplBcpAs 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,keyboard-interactive debug1: Trying private key: /home/traptaku/.ssh/id_dsa debug3: no such identity: /home/traptaku/.ssh/id_dsa: No such file or directory debug1: Trying private key: /home/traptaku/.ssh/id_ecdsa debug3: no such identity: /home/traptaku/.ssh/id_ecdsa: No such file or directory debug1: Trying private key: /home/traptaku/.ssh/id_ecdsa_sk debug3: no such identity: /home/traptaku/.ssh/id_ecdsa_sk: No such file or directory debug1: Trying private key: /home/traptaku/.ssh/id_ed25519 debug3: no such identity: /home/traptaku/.ssh/id_ed25519: No such file or directory debug1: Trying private key: /home/traptaku/.ssh/id_ed25519_sk debug3: no such identity: /home/traptaku/.ssh/id_ed25519_sk: No such file or directory debug1: Trying private key: /home/traptaku/.ssh/id_xmss debug3: no such identity: /home/traptaku/.ssh/id_xmss: No such file or directory debug2: we did not send a packet, disable method debug3: authmethod_lookup keyboard-interactive debug3: remaining preferred: password debug3: authmethod_is_enabled keyboard-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug3: send packet: type 50 debug2: we sent a keyboard-interactive packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: Next authentication method: password [email protected] password: debug3: send packet: type 50 debug2: we sent a password packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password,keyboard-interactive Permission denied, please try again. [email protected] password: debug3: send packet: type 50 debug2: we sent a password packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password,keyboard-interactive Permission denied, please try again. [email protected] password: debug3: send packet: type 50 debug2: we sent a password packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password,keyboard-interactive debug2: we did not send a packet, disable method debug1: No more authentication methods to try. [email protected]: Permission denied (publickey,password,keyboard-interactive).- Linux
sshd_config：Include = /etc/ssh/sshd_config.d/*.conf ChallengeResponseAuthentication = no UsePAM = yes X11Forwarding = yes PrintMotd = no AcceptEnv = LANG LC_* Subsystem sftp = /usr/lib/openssh/sftp-server - 窗户
sshd_config：AuthorizedKeysFile = .ssh/authorized_keys Subsystem sftp = sftp-server.exe
ufw在 Linux 上被禁用，而在 Windows 上，我向防火墙添加了适当的规则，并尝试禁用防火墙；一个有趣而奇特的警告是，当我第一次在 Windows 上设置它时，通过 SSH 进入 Windows 没有任何障碍（我确实尝试重新安装 SSH 服务，但没有成功）。
- 在我将 Windows 中的默认 shell 从 更改为 之后，出现了这个问题
cmd；powershell我确实尝试修改sshd_config以允许 root 登录，但是没有结果。 - 在我连续三次输入正确密码后，出现以下信息：
Permission denied (publickey,password,keyboard-interactive) - 作为最后的手段，下周我将尝试重新安装 Windows 并重复我这次采取的步骤，直到出现问题为止。
（在 AskUbuntu 上发布此问题导致其被否决）
答案1
我在注册表编辑中输入了错误。现在可以通过 SSH 进入 Windows。