尝试通过SSH进入Amazon EC2时出现“权限被拒绝（公钥）。”

Question

我在AWS上安装了iPython，可以很好地通过浏览器访问它。 但是，当我尝试SSH到EC2实例时，出现以下错误：

Permission denied (publickey).

我尝试使用现有的.pem密钥，以及通过生成新密钥，仍然没有任何效果。 这些是我遵循的步骤：

1. $ chmod 700〜/ .ssh
2. cp〜/ desktop / aws / ipython.pem〜/ .ssh / ipython.pem
3. chmod 600〜/ .ssh / ipython.pem
4. ssh -i〜/ .ssh / ipython.pem ubuntu@50.174.xx.xx

在运行ssh命令“ ssh -i〜/ .ssh / ipython.pem ubuntu@50.174.xx.xx -v”时，我得到以下响应：

OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration data /Users/coffeeman/.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 20: Applying options for *
debug1: /etc/ssh/ssh_config line 102: Applying options for *
debug1: Connecting to 50.174.xx.xx [50.174.xx.xx] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /Users/coffeeman/.ssh/ipython.pem type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/coffeeman/.ssh/ipython.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.6
debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.6 pat OpenSSH_6.6.1* compat 0x04000000
debug1: Authenticating to 50.174.xx.xx:22 as 'ubuntu'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client chacha20-poly1305@openssh.com <implicit> none
debug1: kex: client->server chacha20-poly1305@openssh.com <implicit> none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:uBRsbvwsIcqNN7vUfzpIXd6n7W5cpyGyU0DutxEHJE8E
debug1: Host '50.174.xx.xx' is known and matches the ECDSA host key.
debug1: Found key in /Users/coffeeman/.ssh/known_hosts:10
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: Offering RSA public key: /Users/coffeeman/.ssh/id_rsa
debug1: Authentications that can continue: publickey
debug1: Trying private key: /Users/coffeeman/.ssh/ipython.pem
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
Permission denied (publickey).

我究竟做错了什么？

Answer 1

看来您没有使用此密钥创建EC2实例。 这是怎么做的

• 转到EC2控制台
• 单击Launch an instance ，然后选择您的操作系统，实例类型等。
• 您将转到此窗口

• 从选项列表中选择“ Create a new key pair ”并为其命名，例如ipython
• 点击Download keypair
• 将此存储在〜/ .ssh / ipython.pem中

• 使用SSH通过SSH连接到您的实例

  ssh -i ~/.ssh/ipython.pem your-ip

而且一切都应该没问题！ :)