How to connect to GitHub via ssh

Generate ssh-key

$ cd ~/.ssh
$ ssh-keygen -t rsa

Copy key to your clipboard

$ cat <your-key>.pub | pbcopy

Upload public key to Github from here

Edit ~/.ssh/config

Host github github.com
  HostName github.com
  IdentityFile ~/.ssh/<your-secret-key>
  User git

Register your secret-key

$ ssh-add ~/.ssh/<your-secret-key>

Check connection

$ ssh -T git@github.com