SSH connection without enter the password

Aim: The client will login without enter the password to the server

With the client:

ssh-keygen -t rsa -b 1024

Speicherort eingeben (bspw. .ssh/ida_rsa)
Don't enter a password!
Copy the file ida_rsa.pub to the server:

scp ~/.ssh/ida_rsa.pub user@server:~/.ssh/ida_rsa.client

With the server:

Add the key from the client:

cat ~/.ssh/ida_rsa.client >> ~/.ssh/authorized_keys 

 That's all. Now you can login from the client to the server with ssh user@server without entering a password.