
ssh enables remote terminal access to a linux box, and is the first step towards an headless machine.
Setting up ssh access is very easy:
first of all install the ssh package:
sudo apt-get install ssh
then append the following line to your /etc/hosts.allow file, telling to allow incoming connection on ssh port 22. In this case I’ve configured it to accept incoming connections from all the IPs of my local network. Edit the line to suit your IP configuration.
sshd: 192.168.0.*
That’s it! Now open a terminal (in mac/unix) and do
ssh <username>@<server-IP>
If you’re on Windows, you can use PuTTY to connect to the server. Have fun!!!

[...] MDADM for setting up software raid Enabling SSH access [...]