ssh 使用没有密码的私钥

Question

I have two servers A and B , i am trying to ssh from A to B using private-key and i don't want to provide password of server B.

I am trying below command for ssh ::

ssh -i <generated_private_key>  <user>@<host name>

the private-key is perfectly fine. but still this command asking for password.

Answer 1

In order to use ssh passwordless connection you need to place the contents of ~/.ssh/id_rsa.pub (id_rsa.pub is just an example could be anything you used durring generation) of the user@local_machine to the ~/.ssh/authorized_keys of the some_user@remote_machine. Further if other issues exist then you should check /var/log/ for the error.

Edit1: Based on comments (thanks to @Crazy) if you used passphrase durring creation of the key then you need to recreate the key without the passphrase.