Passwordless login with `ssh-copy-id` to a regular VPS or EC2 instances

ssh-copy-id passwordless login

# Passwordless Login

**NOTE:** For all the commands below if you use windows then use `git bash` terminal otherwise it will won't work

## Get Ready
First check if you have generated ssh keys in your local machine or not. hit this command on terminal to see if you've already
a ssh key `cat ~/.ssh/id_rsa.pub`  if you see data then you're ready for next step otherwise generate ssh key first by hitting\
this command `ssh-keygen` on terminal and it will ask you some prompt, you can just keep them blank and keep pressing enter, till
it's done!

## Passwordless login to EC2 VPS
Login always with the `pem` file is bit of annonying for regular access, So I've figure out ways to add your local development
machine authorized with EC2 instance as well by hooking up that command:
`cat ~/.ssh/id_rsa.pub | ssh -i aws.pem user@ip_address "cat - >> ~/.ssh/authorized_keys"`

Note: Also you might need to enable `PasswordAuthentication` to `yes` in `/etc/ssh/sshd_config` config file.

## Passwordless authentication with regular VPS that is accessible with password
This is a super easy-peasy job. To setup passwordless authentication there's a helper command in your terminal
called `ssh-copy-id`. So I'm expecting you've already `ssh` key generated. Now, Go ahead and hit command like this
`ssh-copy-id user@ip_address` then provide your login password and you'll see that 1 ssh key has been added or equivalent message
that means you're ready to go now just hit `ssh user@ip_address` it will won't ask you password again on your development machine!

~@Chill~/