How To: Find the hostname.
The hostname is, for many of you who will be reading this, the same as your username. This is not always true.
Why is it important? Well, if I want to connect to a box on my network, I use its hostname. For example:
ssh kgiii@kgiii-lmde.local
That means I don’t need to know the IP address of the box, I merely need to know the hostname. That, as I said, is usually your username. On the off-chance that it isn’t, it’s easy to find.
cat /proc/sys/kernel/hostname
And there you go.