我无法连接到正在运行的 ubuntu ec2 实例

Question

我一直在尝试连接到我的运行实例已有一段时间了，但什么都没有起作用，我尝试生成一个公共密钥并导入它。那不起作用。

然后我从AWS下载了.pem文件。但是它总是每次都要求我使用密码，然后告诉我密码无效。我已经搜索了我在互联网上看到的一切，但它们都不为我工作。

这是ssh -vvvi seun-ubuntu.pem ubuntu@<public_ip>的输出：

OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g  1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "35.164.99.195" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 35.164.99.195 [35.164.99.195] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file seun-ubuntu.pem type -1
debug1: key_load_public: No such file or directory
debug1: identity file seun-ubuntu.pem-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.1
debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.1 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 35.164.99.195:22 as 'ubuntu'
debug3: hostkeys_foreach: reading file "/home/seunlanlege/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/seunlanlege/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 35.164.99.195
debug3: order_hostkeyalgs: prefer hostkeyalgs: [e-mail],[e-mail],[e-mail],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: [e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [e-mail],[e-mail],[e-mail],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[e-mail],[e-mail],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: ciphers stoc: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: MACs ctos: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[e-mail],zlib
debug2: compression stoc: none,[e-mail],zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: [e-mail],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail]
debug2: ciphers stoc: [e-mail],aes128-ctr,aes192-ctr,aes256-ctr,[e-mail],[e-mail]
debug2: MACs ctos: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[e-mail]
debug2: compression stoc: none,[e-mail]
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: [e-mail]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [e-mail] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [e-mail] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:y7TWEyrhSMy5AXY82NrlHJCxDkJ8Ybsv5ObgVsDJEtc
debug3: hostkeys_foreach: reading file "/home/seunlanlege/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/seunlanlege/.ssh/known_hosts:1
debug3: load_hostkeys: loaded 1 keys from 35.164.99.195
debug1: Host '35.164.99.195' is known and matches the ECDSA host key.
debug1: Found key in /home/seunlanlege/.ssh/known_hosts:1
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug2: key: [e-mail] (0x55da98116d50), agent
debug2: key: seun-ubuntu.pem ((nil)), explicit
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug3: start over, passed a different list publickey
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: [e-mail]
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey
debug1: Trying private key: seun-ubuntu.pem
Enter passphrase for key 'seun-ubuntu.pem': 

请帮忙，我已经呆了一个小时了。我有SSH钥匙以前使用Digitalocean的工作方式，但我是AWS的初学者，这非常令人沮丧。

Answer 1

如果提示了.pem文件的密码，并且您知道密钥上没有密码，则通常表明ssh无法正确读取文件。p>当有人做副本＆amp;粘贴并且有不正确的线路特性字符。

如果您在文本编辑器中打开文件，则行应为相同的长度，除了最后一个，带有这样的标题：

-----BEGIN RSA PRIVATE KEY-----
MIIEowIBAAKCAQEAgERw9liYOkOAPNrnupzGEMA9dLTIKmSp98F4eveqLq3WH9sIc2FZpzGT3HEm
qBFGvNkgywPZommXsamZ53mt3KJ1FTAZ5roojScbjawzjg5B+JhRHpj6bVDapSZl1bM0CQPLxWK2
LbvBHjfXtFJEndxPk7PQxSnYsvOqwpdggWPwLmbpyadmzdfrpCcCgYEAm3U6jhReSOqDbEG8gAMi
...
8VVrSccLeNVP2KapL6VsXO6lZmuCgz0B9RghrO+CQ/4okoZO53wc+UdJkLX9s5d+gaR3
-----END RSA PRIVATE KEY-----

如果文件看起来不同，请尝试获取另一个键的副本。