php cloudformatino 이미지 ami-6fc2f61b를 기반으로 새 ec2 인스턴스를 만들고 기존 키를 여기에 연결했습니다. 보안 그룹은 ssh 및 http를 허용합니다. 그러나 연결할 수 없습니다.

$ ssh -v -i /cygdrive/c/data/copy/pk.pem [email protected]
OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Connecting to host [46.xx.xx.xx] port 22.
debug1: Connection established.
debug1: identity file /cygdrive/c/data/copy/pk.pem type -1
debug1: identity file /cygdrive/c/data/copy/pk.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_5.9
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: Server host key: RSA 44:xx:xx:xx
debug1: Host 'host' is known and matches the RSA host key.
debug1: Found key in /home/a25058/.ssh/known_hosts:9
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: Trying private key: /cygdrive/c/data/copy/pk.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).

이에 대한 가능한 원인은 무엇입니까?

answer

문제 해결:
잘못된 사용자 이름을 사용했습니다. 루트로 로그인하려고 하면 다음 오류가 표시됩니다.

Please login as the ec2-user user rather than root user.

분명히 사용자 이름 지정 규칙은 Amazon AMI 간에도 일관성이 없습니다. 일부는 ec2_user를 사용하고 일부는 ec2-user를 사용합니다.