Amazon web services AWS权限被拒绝（公钥）

我正在尝试连接到我的EC2实例，并得到以下错误

我正在运行的命令：ssh-v-I key.pem ubuntu@[我的实例地址]

正如我在其他线程中看到的那样，我将密钥文件的权限更改为600，但这并没有解决问题

我得到的输出：

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 ec2-54-247-2-128.eu-west-1.compute.amazonaws.com [54.247.2.128] port 22.
debug1: Connection established.
debug1: identity file /Users/avimeir/.ssh/id_rsa type 1
debug1: identity file /Users/avimeir/.ssh/id_rsa-cert type -1
debug1: identity file /Users/avimeir/.ssh/id_dsa type -1
debug1: identity file /Users/avimeir/.ssh/id_dsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 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 ae:42:29:3d:3e:c0:a8:04:7f:19:9c:c0:52:00:a4:1e
debug1: Host 'ec2-54-247-2-128.eu-west-1.compute.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/avimeir/.ssh/known_hosts:4
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/avimeir/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Offering RSA public key: ninja.pem
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/avimeir/.ssh/id_dsa
debug1: No more authentication methods to try.
Permission denied (publickey).

OpenSSH_5.9p1，OpenSSL 0.9.8r 2011年2月8日
debug1:读取配置数据/etc/ssh\u config
debug1:/etc/ssh\u配置第20行：应用*
debug1:连接到ec2-54-247-2-128.eu-west-1.compute.amazonaws.com[54.247.2.128]端口22。
debug1:已建立连接。
debug1:identity file/Users/avimeir/.ssh/id\u rsa类型1
debug1:identity file/Users/avimeir/.ssh/id_rsa-cert type-1
debug1:identity file/Users/avimeir/.ssh/id_dsa type-1
debug1:identity file/Users/avimeir/.ssh/id_dsa-cert type-1
debug1：远程协议版本2.0，远程软件版本OpenSSH_5.9p1 Debian-5ubuntu1
debug1:匹配：OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH*
debug1:启用协议2.0的兼容模式
debug1:本地版本字符串SSH-2.0-OpenSSH_5.9
debug1:SSH2\u MSG\u KEXINIT已发送
debug1:SSH2\u MSG\u KEXINIT已收到
debug1:kex:server->client aes128 ctr hmac-md5无
debug1:kex:客户端->服务器aes128 ctr hmac-md5无
debug1:SSH2_MSG_KEX_DH_GEX_请求（1024通过编辑/etc/ssh_config（在OSX上）并添加以下行来解决它：

ChallengeResponseAuthentication yes

请务必检查：

SSH密钥对文件

用户名。例如：root，ec2用户，ubuntu

服务器的主机名。例如，如果停止实例，它将获得一个新的IP地址

如果您使用的是Ubuntu云来宾官方图像，您可以查看