我的第一个密钥对（eyelid_s.pem）工作正常。我正在使用这个密钥对作为个人使用的实例访问。
现在我想为团队创建一个新实例，因此我创建了一个新密钥对（SE_Server.pem）作为新实例的默认密钥对。但它只是不起作用。即使旧的pem也不适用于新实例。我在我的第一个实例上尝试过新的密钥对，但它们也不起作用。
我已经这样做了：
chmod 400 SE_Server.pem
所以这不应该是文件权限问题。
OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: Connecting to ec2-23-20-118-96.compute-1.amazonaws.com [2001:778::ffff:64:0:1714:7660] port 22.
debug1: Connection established.
debug1: identity file /Users/Lynn/.ssh/id_rsa type 1
debug1: identity file /Users/Lynn/.ssh/id_rsa-cert type -1
debug1: identity file /Users/Lynn/.ssh/id_dsa type -1
debug1: identity file /Users/Lynn/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-6+squeeze2
debug1: match: OpenSSH_5.5p1 Debian-6+squeeze2 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 4d:28:fd:e1:aa:ba:89:9a:6e:e7:b3:d7:fa:15:bd:af
debug1: Host 'ec2-23-20-118-96.compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/Lynn/.ssh/known_hosts:1
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: /Users/Lynn/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Offering RSA public key: /Users/Lynn/eyelid_s.pem
debug1: Authentications that can continue: publickey
debug1: Offering RSA public key: SE_Server_key.pem
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/Lynn/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).
如果有人能帮助我，我真的很感激！这真的很烦人，因为我无法访问我的新实例。
答案 0 :(得分：0)
您可以拥有多个密钥（不在AWS控制台中，但您可以使用它们ssh到您的计算机中），只需确保将它们添加到“authorized_keys”或“authorized_keys2”中，具体取决于您的ssh版本。
http://www.idrix.fr/Root/Samples/pubkey2ssh.c - 一种导入.pem的方法，但我确定还有其他方法可供使用。