我对此很陌生，这是我自己设置的第二台服务器，它应该是直接且简单的，但我收到了此错误。
环顾四周，但解决方案不符合我的情况。
即使我提供了.pem在 AWS 中创建实例时刚刚下载的文件，我仍然收到此错误。
ssh -vvv -i ~/.ssh/transa.pem [email protected]
调试输出如下：
OpenSSH_7.2p2 Ubuntu-4ubuntu2.4, 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 "0.0.0.0" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 0.0.0.0 [0.0.0.0] port 22.
debug1: Connection established.
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_rsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /home/zerinol/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 0.0.0.0:22 as 'ubuntu'
debug3: hostkeys_foreach: reading file "/home/zerinol/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/zerinol/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from 0.0.0.0
debug3: order_hostkeyalgs: prefer hostkeyalgs: [email protected],[email protected],[email protected],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: [email protected],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: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: curve25519-sha256,[email protected],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,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc,blowfish-cbc,cast128-cbc,3des-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos:
debug2: languages stoc:
debug2: first_kex_follows 0
debug2: reserved 0
debug1: kex: algorithm: [email protected]
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] 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:gntDTHD4yKufreZfPzhLh5f46z0XE6/jiOIFJe8d8zo
debug3: hostkeys_foreach: reading file "/home/zerinol/.ssh/known_hosts"
debug3: record_hostkey: found key type ECDSA in file /home/zerinol/.ssh/known_hosts:5
debug3: load_hostkeys: loaded 1 keys from 0.0.0.0
debug1: Host '0.0.0.0' is known and matches the ECDSA host key.
debug1: Found key in /home/zerinol/.ssh/known_hosts:5
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: /home/zerinol/.ssh/chaves.pem (0x7fffc9735f10), agent
debug2: key: /home/zerinol/.ssh/transa.pem (0x7fffc97332d0), agent
debug2: key: /home/zerinol/.ssh/id_rsa ((nil))
debug2: key: /home/zerinol/.ssh/id_dsa ((nil))
debug2: key: /home/zerinol/.ssh/id_ecdsa ((nil))
debug2: key: /home/zerinol/.ssh/id_ed25519 ((nil))
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,gssapi-keyex,gssapi-with-mic
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-keyex
debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-keyex
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug2: we did not send a packet, disable method
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug1: Unspecified GSS failure. Minor code may provide more information
debug1: Unspecified GSS failure. Minor code may provide more information
No Kerberos credentials available
debug2: we did not send a packet, disable method
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: /home/zerinol/.ssh/chaves.pem
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,gssapi-keyex,gssapi-with-mic
debug1: Offering RSA public key: /home/zerinol/.ssh/transa.pem
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,gssapi-keyex,gssapi-with-mic
debug1: Trying private key: /home/zerinol/.ssh/id_rsa
debug3: no such identity: /home/zerinol/.ssh/id_rsa: No such file or directory
debug1: Trying private key: /home/zerinol/.ssh/id_dsa
debug3: no such identity: /home/zerinol/.ssh/id_dsa: No such file or directory
debug1: Trying private key: /home/zerinol/.ssh/id_ecdsa
debug3: no such identity: /home/zerinol/.ssh/id_ecdsa: No such file or directory
debug1: Trying private key: /home/zerinol/.ssh/id_ed25519
debug3: no such identity: /home/zerinol/.ssh/id_ed25519: No such file or directory
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
我有另一个.pem文件在另一个帐户中使用，没有问题，两个文件都被加载到ssh-agentusing .bashrc，我不知道它是否与此有关。为什么一个可以正常工作，而另一个却不能，我该如何让它工作？
我在 Windows 10 上使用 Linux shell ( wsl)
答案1
ec2 密钥对文件必须具有受限权限，并且您需要使用管理员权限来执行此操作。如果没有管理员权限，可能不会显示任何错误。因此，您可能认为权限已更改。
sudo su
chmod 400 ~/.ssh/transa.pem
答案2
就我而言，这是因为我必须添加用户名。
尝试在不使用用户名的情况下进行 ssh。
$ ssh -vvv -i ~/.ssh/aws.pem 52.88.251.23
Error message: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
使用此（默认用户名ec2-user
）：
ssh -v -i ~/.ssh/aws.pem [email protected]