14 - Making Sense of ifconfig
- Going to look deeply today at the output of a very important networking command
	- ifconfig
- Broken up by network interfaces
	- UNIX name for network interfaces
		- lo0
			- loopback address
			- 127.0.0.1
			- localhost
			- send this to ME! 
		- gif0
			- ignore
		- stf0
			- ignore
		- fw0
			- FireWire
				- can actually be used for computer to computer networking
		- en0, en1, etc.
			- Ethernet, or Wifi, which is considered a type of ethernet
			- these are the ones we will be talking about
	- These devices will differ machine to machine
- en0
	- inet
		- IP address
	- Next is the Netmask
		- written in Hexadecimal
			- ff = 255
			- 00 = 0
			- 0x means this is hexadecimal
			- 0xffffff00=255.255.255.0
	- Broadcast
		- broadcast IP address
			- all machines on your network will see packets sent to this IP address
	- ether
		- MAC address
	- media
		- status of the physical status of the network card
		- almost all are autoselect
- ifconfig CAN change Network settings, but on OS X, you shouldn't
	- the changes are only temporary
	- use the System Preference Pane instead
- Bart Busschots
	- bartb.ie <http://bartb.ie/>
	- impodcast.tv <http://impodcast.tv/>
	- podfeet.com <http://podfeet.com/>