php cloudformatinoイメージami-6fc2f61bに基づいて新しいec2インスタンスを作成し、既存のキーをそれに添付しました。セキュリティグループはsshとhttpを許可します。それでも、接続できません:

$ 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_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).




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

どうやら、ユーザーの命名規則は、Amazon AMI間でも一貫していないようです。ec2_userを使用するものもあれば、ec2-userを使用するものもあります。