从另一台远程服务器通过SSH进入AWS ec2实例? [英] SSH into AWS ec2 instance from another remote server?

问题描述

我正在尝试从Digital Ocean上的远程服务器上的用户ssh进入AWS ec2实例.

I'm attempting to ssh into an AWS ec2 instance from a user on a remote server on Digital Ocean.

我将私钥上传到Digital Ocean上用户的.ssh文件夹中，在 .ssh 目录中创建了一个配置文件，以指向身份文件( .pem 包含私钥的文件)，然后通过 ssh-keygen -y 生成一个公钥，并将其添加到ec2实例上用户的'.ssh/authorized_keys'文件中.

I uploaded the private key into the .ssh folder for the user on Digital Ocean, created a config file in in the .ssh directory to point to the Identity File (.pem file containing private key) then generated a public key via ssh-keygen -y and added it to the '.ssh/authorized_keys' file for the user on the ec2 instance.

我的本​​地计算机以这种方式连接到ec2实例，而不会出现问题&我以为我可以以类似的方式在远程Digital Ocean实例上设置用户，但是在尝试连接时出现权限被拒绝(公钥)错误.

My local machine connects to the ec2 instance in this way without issue & I assumed I could set up the user on the remote Digital Ocean instance in a similar manner but I am getting a Permission denied (publickey). error when I attempt to connect.

详细错误输出:

debug1: Found key in /home/temp_user/.ssh/known_hosts:2
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Trying private key: .ssh/digital-ocean.pem
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.

temp_user 是Digital Ocean服务器上的新用户. digital-ocean.pem 是在AWS控制台中创建的私钥，通过该私钥生成了公钥并将其存储在aws实例上的新用户的 .ssh/authorized_keys 中.

temp_user is the new user on the Digital Ocean server. digital-ocean.pem is the private key created in AWS console from which the public key was generated and stored in .ssh/authorized_keys for the new user on the aws instance.

为了测试，我暂时在本地和

To test, I temporarily uploaded the private key I use on my local and

ssh -i .ssh/local.pem< user> @<实例ID> 起作用.

我觉得这可能与aws实例上的新创建用户有关.

I feel like it may have to do with newly created user on the aws instance.

如何解决或解决此问题?

How can I troubleshoot or resolve this?

推荐答案

.ssh 目录应具有 755 权限，并由用户拥有. authorized_keys 文件应具有 644 权限，并由用户拥有.

The .ssh directory should have 755 permissions and be owned by the user. The authorized_keys file should have 644 permissions and be owned by the user.

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