我正在尝试从Linux机器连接到我的AWS EC2实例，但是这样做很麻烦。我以前在家中尝试过，它起作用了，所以我对为什么现在我在学校为什么它不起作用感到困惑。
我先夯chmod 400 "Key 1.pem"。
然后我输入了ssh -i "Key 1.pem" ubuntu@ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com -vvv
这是输出：
OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com [xx.xx.xxx.xxx] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file Key 1.pem type -1
debug1: key_load_public: No such file or directory
debug1: identity file Key 1.pem-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
debug1: Remote protocol version 2.0, remote software version PaloAltoNetworks_0.2
debug1: no match: PaloAltoNetworks_0.2
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com:22 as 'ubuntu'
debug3: hostkeys_foreach: reading file "/home/x/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/x/.ssh/known_hosts:9
debug3: load_hostkeys: loaded 1 keys from ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa
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: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com
debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,zlib@openssh.com,zlib
debug2: compression stoc: none,zlib@openssh.com,zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: MACs stoc: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: compression ctos: none
debug2: compression stoc: none
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: diffie-hellman-group-exchange-sha256
debug1: kex: host key algorithm: ssh-rsa
debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<7680<8192) sent
debug3: receive packet: type 31
debug1: got SSH2_MSG_KEX_DH_GEX_GROUP
debug2: bits set: 1070/2048
debug3: send packet: type 32
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug3: receive packet: type 33
debug1: got SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: ssh-rsa SHA256:/mAko/GQWYyseCLdwLcgdK5StHC0mLU1aX7LqdtGXWw
debug3: hostkeys_foreach: reading file "/home/x/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/x/.ssh/known_hosts:9
debug3: load_hostkeys: loaded 1 keys from ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com
debug3: hostkeys_foreach: reading file "/home/x/.ssh/known_hosts"
debug3: record_hostkey: found key type RSA in file /home/x/.ssh/known_hosts:10
debug3: load_hostkeys: loaded 1 keys from xx.xx.xxx.xxx
debug1: Host 'ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com' is known and matches the RSA host key.
debug1: Found key in /home/x/.ssh/known_hosts:9
debug2: bits set: 1006/2048
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 4294967296 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 4294967296 blocks
debug2: key: Key 1.pem ((nil)), explicit
debug3: send packet: type 5
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: Trying private key: Key 1.pem
debug3: sign_and_send_pubkey: RSA SHA256:0DyNPm5i8KfJCXH+hiFUW0CCnOMLu8uh1PEzjW0OO5w
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
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
ubuntu@ec2-xx-xx-xxx-xxx.eu-west-2.compute.amazonaws.com: Permission denied (publickey).
我不知道为什么这不起作用。有人可以帮忙吗？
谢谢。
编辑：我什至尝试将卷装载到其他实例，但是即使生成新密钥，我也遇到完全相同的问题。
答案 0 :(得分：0)
代替使用用户：ubuntu尝试使用ec2-user。
例如：ec2-user@ec2-xx-xx-xxx-xxx-xxx.eu-west-2.compute.amazonaws.com