在 AWS 控制台中，我看到我的密钥对已被删除。我创建了一个同名的新密钥对。然后我尝试连接ssh -v -i sohoKey.pem ec2-user@******.compute-1.amazonaws.com
输出如下：
macs-MacBook-Air:~ mac$ ssh -v -i sohoKey.pem ec2-user@******.compute-1.amazonaws.com
OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Connecting to ********.compute-1.amazonaws.com [*****] port 22.
debug1: Connection established.
debug1: identity file sohoKey.pem type -1
debug1: identity file sohoKey.pem-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3
debug1: match: OpenSSH_5.3 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.6
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '*******.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/mac/.ssh/known_hosts:3
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: Roaming not allowed by server
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: sohoKey.pem
debug1: Authentications that can continue: publickey
debug1: Trying private key: sohoKey.pem
debug1: read PEM private key done: type RSA
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
Permission denied (publickey).
更新：我分离了旧 EBS 并将其附加到新实例。现在，我该如何安装它？
答案1
如果您没有实例的正确匹配密钥，服务器将不会让您进入。在 EC2 中注册的密钥仅在初始化期间在图像中设置，因此您无法在机器在线时更改它。
如果您有 EBS 卷，您可以将其重新附加为新实例的辅助卷，通过在其上加载新密钥来修复错误，然后将其重新附加到旧实例。否则，您就失去了服务器。