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我看到這篇文章：AWS公鑰否認問題
AWS ssh access 'Permission denied (publickey)' issue
的信息有相關性，但並不能幫助我解決我的問題。我曾經能夠使用ec2-user在AWS上使用以下命令登錄到我的Linux實例：
ssh -i key.pem ec2-user @ [address] .compute-1.amazonaws.com from MacBook終端
在過去的幾周裏，我現在收到此錯誤：
「權限被拒絕（公鑰）」。
我試圖
的ssh -v -i key.pem EC2用戶@ [地址] .compute-1.amazonaws.com從我的MacBook終端
，我得到這樣的輸出：
OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to [address].compute-1.amazonaws.com [address] port 22.
debug1: Connection established.
debug1: identity file key.pem 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_5.2
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 '[address].compute-1.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in [path]/.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: 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: key.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).
有什麼建議嗎？如何解決這個問題？
我在這個實例上有我以前創建的另一個用戶帳戶。我可以用它登錄，然後sudo進入根目錄。我不能再使用ec2用戶登錄。
謝謝！
您是否嘗試過致電亞馬遜支持？ –
在過去的幾個星期裏，您是否執行過任何操作 - 在AWS中生成新密鑰或在計算機中刪除SSH密鑰等。 – 18bytes
顯然，它看起來像您的SSH密鑰的問題。你有沒有嘗試root用戶？ – 18bytes