说的太不具体了

debug 情况是这样的，我的 key 文件是 blog-ec2.pem

OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug1: Connecting to ec2-54-248-58-236.ap-northeast-1.compute.amazonaws.com [54.248.58.236] port 22.
debug1: Connection established.
debug1: identity file blog-ec2.pem type -1
debug1: identity file blog-ec2.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 'ec2-54-248-58-236.ap-northeast-1.compute.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /Users/xudannie/.ssh/known_hosts:13
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/xudannie/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: blog-ec2.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).

debug1: Offering RSA public key: /Users/xudannie/.ssh/id_rsa

今天碰到类似的问题，你没有用那个 key 文件。

#2 楼 @rickyuan 我新建的虚拟机 也是报“Permission denied (publickey).”错误。我的是在 ec2 东京申请的，各种的找不到原因。 没办法转战到 新加坡，然后所有流程走了一遍，然后就成功了。你也是一下呗。你在 instance 上右键选择 connect，看你的 ssh 连接的方法跟他的一样不？

命令行对不对？ssh -i /path/to/blog-ec2.pem user@host

昨天碰到一次直接在虚拟机内 init 6 之后 /etc/ssh/sshd_config 被回滚，把 PasswordAuthentication 给禁用了，刚开始用 ssh -i key 也登录不能，过了一会儿好了 -_-z

#5 楼 @terrywang 亚马逊 ec2 的 instance 上直接有 ssh 的方法什么的。

#6 楼 @xiaogui MindTerm / SSHTerm 类 Java SSH 客户端，可以在浏览器中运行（applet）

第一次连的时候 要设置规则 开放端口 @xiaogui说得对。ec2 的 web console 上有方法。按照文档来绝对能行