无法从Windows通过SSH连接AWS RHEL实例的问题求助

问题详情 #

执行以下SSH命令连接AWS RHEL实例：

c:\Users\simon\Downloads>ssh -i "Mega3.pem" ec2-user@ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com

返回错误：

ec2-user@ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

已排查操作 #

• 在存放创建实例时生成的密钥文件Mega3.pem的Downloads目录下启动SSH
• 已将密钥文件权限设置为仅当前账户拥有完全控制权限
• 安全组已添加规则允许ICMP（ping）访问，规则配置为来源0.0.0.0/0

SSH详细调试日志 #

OpenSSH_for_Windows_8.6p1, LibreSSL 3.4.3
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug1: Connecting to ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com [13.210.225.73] port 22.
debug1: Connection established.
debug1: identity file Mega3.pem type -1
debug1: identity file Mega3.pem-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_for_Windows_8.6
debug1: Remote protocol version 2.0, remote software version OpenSSH_8.7
debug1: compat_banner: match: OpenSSH_8.7 pat OpenSSH* compat 0x04000000
debug1: Authenticating to ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com:22 as 'ec2-user'
debug1: load_hostkeys: fopen C:\\Users\\simon/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ssh-ed25519
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: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:vDtm+N1kYnIhhqQ61Rj8d5UKT2IoVbFSir7B4IDaDUM
debug1: load_hostkeys: fopen C:\\Users\\simon/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen __PROGRAMDATA__\\ssh/ssh_known_hosts2: No such file or directory
debug1: Host 'ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com' is known and matches the ED25519 host key.
debug1: Found key in C:\\Users\\simon/.ssh/known_hosts:6
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: pubkey_prepare: ssh_get_authentication_socket: No such file or directory
debug1: Will attempt key: Mega3.pem  explicit
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@openssh.com,webauthn-sk-ecdsa-sha2-nistp256@openssh.com>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic
debug1: Next authentication method: publickey
debug1: Trying private key: Mega3.pem
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic
debug1: No more authentication methods to try.
ec2-user@ec2-13-210-225-73.ap-southeast-2.compute.amazonaws.com: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

内容的提问来源于stack exchange，提问作者SimonKravis