失去对Google Cloud VM的ssh访问

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问题:

我以前使用ssh连接,根本没有问题,

我尝试过

1-检查防火墙条目"default-allow-ssh"是否存在

尝试使用cmd连接其他用户


gcloud compute ssh another-username@$PROB_INSTANCE



3-添加带有值的元数据"startup-script"键:


#! /bin/bash


useradd -G sudo USER


echo 'USER:PASS' | chpasswd



4-增加磁盘大小。

5-增加内存(升级了虚拟机实例类型)。

6-从VM详细信息和元数据选项卡中删除了ssh密钥,然后重新启动:

删除后,我尝试使用命令再次生成密钥:


gcloud beta compute ssh INSTANCE_NAME -- -vvv 



但它返回:


No zone specified. Using zone [us-east1-b] for instance: [INSTANCE_NAME].


Updating project ssh metadata...⠏Updated [https://www.googleapis.com/compute/beta/projects/PROJECT_NAME].


Updating project ssh metadata...done.


Waiting for SSH key to propagate.


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).


USER@IP_ADDRESS: Permission denied (publickey).



更多细节


gcloud beta compute ssh --zone ZONE INSTANCE_NAME --project PROJECT_NAME



返回:


USER@IP_ADDRESS: Permission denied (publickey).



第二次等待传播后)


gcloud beta compute ssh INSTANCE_NAME -- -vvv 



返回:


[...]


OpenSSH_7.9p1 Debian-10+deb10u2, OpenSSL 1.1.1g 21 Apr 2020


debug1: Reading configuration data /home/USER/.ssh/config


debug1: Reading configuration data /etc/ssh/ssh_config


debug1: /etc/ssh/ssh_config line 19: Applying options for *


debug2: resolve_canonicalize: hostname IP_ADDRESS is address


debug2: ssh_connect_direct


debug1: Connecting to IP_ADDRESS [IP_ADDRESS] port 22.


debug1: Connection established.


debug1: identity file /home/USER/.ssh/google_compute_engine type 0


debug1: identity file /home/USER/.ssh/google_compute_engine-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_7.4p1 Debian-10+deb9u7


debug1: match: OpenSSH_7.4p1 Debian-10+deb9u7 pat OpenSSH_7.0*,OpenSSH_7.1*,OpenSSH_7.2*,OpenSSH_7.3*,OpenSSH_7.4*,OpenSSH_7.5*,OpenSSH_7.6*,OpenSSH_7.7* compat 0x04000002


debug2: fd 3 setting O_NONBLOCK


debug1: Authenticating to IP_ADDRESS:22 as 'USER'


debug1: using hostkeyalias: compute.INSTANCE_ID


debug3: hostkeys_foreach: reading file "/home/USER/.ssh/google_compute_known_hosts"


debug3: record_hostkey: found key type ECDSA in file /home/USER/.ssh/google_compute_known_hosts:1


debug3: load_hostkeys: loaded 1 keys from compute.INSTANCE_ID


debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,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,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-grou


p14-sha256,diffie-hellman-group14-sha1,ext-info-c


debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-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-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa


debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com


debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com


debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1


debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1


debug2: compression ctos: none,zlib@openssh.com,zlib


debug2: compression stoc: none,zlib@openssh.com,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,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-grou


p14-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: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com


debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com


debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1


debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1


debug2: compression ctos: none,zlib@openssh.com


debug2: compression stoc: none,zlib@openssh.com


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: chacha20-poly1305@openssh.com MAC: <implicit> compression: none


debug1: kex: client->server cipher: chacha20-poly1305@openssh.com 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:Or8[...]


debug1: using hostkeyalias: compute.INSTANCE_ID


debug3: hostkeys_foreach: reading file "/home/USER/.ssh/google_compute_known_hosts"


debug3: record_hostkey: found key type ECDSA in file /home/USER/.ssh/google_compute_known_hosts:1


debug3: load_hostkeys: loaded 1 keys from compute.INSTANCE_ID


debug1: Host 'compute.INSTANCE_ID' is known and matches the ECDSA host key.


debug1: Found key in /home/USER/.ssh/google_compute_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/USER/.ssh/google_compute_engine RSA SHA256:brI3[...] explicit


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,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


debug3: start over, passed a different list publickey


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/USER/.ssh/google_compute_engine RSA SHA256:brI3[...] explicit


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


debug2: we did not send a packet, disable method


debug1: No more authentication methods to try.


USER@IP_ADDRESS: Permission denied (publickey).


ERROR: (gcloud.beta.compute.ssh) [/usr/bin/ssh] exited with return code [255].



更新


Welcome to [1mDebian GNU/Linux 9 (stretch)[0m!



[ 2.364319] systemd[1]: No hostname configured.


[ 2.365157] systemd[1]: Set hostname to <localhost>.


[ 3.142016] systemd[1]: google-shutdown-scripts.service: Cannot add dependency job, ignoring: Unit google-shutdown-scripts.service is masked.


[ 3.144581] systemd[1]: google-clock-skew-daemon.service: Cannot add dependency job, ignoring: Unit google-clock-skew-daemon.service is masked.


[ 3.147589] systemd[1]: google-instance-setup.service: Cannot add dependency job, ignoring: Unit google-instance-setup.service is masked.


[ 3.149799] systemd[1]: google-accounts-daemon.service: Cannot add dependency job, ignoring: Unit google-accounts-daemon.service is masked.


[ 3.152485] systemd[1]: google-startup-scripts.service: Cannot add dependency job, ignoring: Unit google-startup-scripts.service is masked.




答案1:

最好首先使用命令检查串行控制台上的日志

gcloud compute instances get-serial-port-output 

或者你可以检查这个链接,以获得其他方法,

可以在启动脚本上尝试这个代码块:


#! /bin/bash


useradd USERNAME


echo 'USERNAME:PASSWORD!' | chpasswd


usermod -aG wheel USERNAME



有关GCE上SSH的更详细的故障排除步骤,你可以查看这里的GCP官方文档。



acc    SSH  google cloud