SSH Login Without Password

Method 1:

#Generate SSH Private/Public key pair.

ssh-keygen

# OR : ssh-keygen -t rsa -b 2048 -C "email@example.com"

#Add public key to the server

ssh-copy-id -i ~/.ssh/id_rsa.pub name@domain.com

#If you have a message like : sign_and_send_pubkey: signing failed: agent refused operation, Add the key using:

ssh-add

Method 2: (Not tested)

#/!\ For the first time only

ssh-keygen -t rsa

#For all servers

ssh name@domain.com mkdir -p .ssh

cat ~/.ssh/id_rsa.pub | ssh name@domain.com 'cat >> .ssh/authorized_keys'

ssh name@domain.com "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"

A Tip

# Optionally, you can add custom commands. Example : ll alias.

echo "alias ll='ls -alFh --color=auto'" >> ~/.bashrc;

Remove a key (On server)

1. Login to the server
2. Edit file .ssh/authorized_keys, Delete the unwanted key

NOTE : Permission

If the .ssh/id_rsa file hasn't correct permission you can't login, set permission to 0700

NOTE : Usage on Windows

This method is working for the cli on Windows like CygWin, Git Bash ... (Not tested on windows command prompt, putty ...)