- 	
					                 		        				  								  
					 			      	Types of Firewalls to Protect a Business Network - Chron
					 			      	 
					                  	Four basic types of firewall protection exist--network level, circuit level, application-level and stateful multilayer. Each type has advantages and disadvantages, ranging from ease of implementation.
					                  	http://smallbusiness.chron.com/types-firewalls-protect-business-network-2246.html
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	Types Of Firewall In Network Security - Palo Alto
					 			      	 
					                  	Network security has gone through quite a few iterations to get to where it is now. Below is a brief evolution of the different types and why we are at the top of the chain.
					                  	http://www.paloaltonetworks.com/index.html
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	Getting a Close Look at Firewalls - Dummies
					 			      	 
					                  	As network traffic passes through the firewall, the firewall decides which traffic to forward and which traffic not to forward, based on rules that you have defined.
					                  	http://www.dummies.com/how-to/content/getting-a-close-look-at-firewalls.html
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	The History of the Next-Generation Firewall - Computer Weekly
					 			      	 
					                  	Security expert Rik Ferguson explains how next-generation firewalls were developed and what protection they provide businesses.
					                  	http://www.computerweekly.com/news/2240159432/The-history-of-the-Next-Generation-Firewall
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	Firewall Security Guide, History and Applications - Vera Code
					 			      	 
					                  	Understand firewall security and how they integrate with application security considerations.
					                  	http://www.veracode.com/security/firewall-security
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	History of the Firewall - Zeraya
					 			      	 
					                  	History of the Firewall from Zeraya.
					                  	http://zeraya.com/history-of-the-firewall
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	How Firewalls Work - How Stuff Works
					 			      	 
					                  	Firewalls have helped protect computers in large companies for years. Now, they're a critical component of home networks, as well. See how firewalls work.
					                  	http://computer.howstuffworks.com/firewall.htm
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	What is Firewall? - Webopedia
					 			      	 
					                  	Firewall systems prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both.
					                  	http://www.webopedia.com/TERM/F/firewall.html
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	What is Firewall? - What Is
					 			      	 
					                  	A firewall is a set of related programs, located at a network gateway server, that protects the resources of a private network from users from other networks.
					                  	http://searchsecurity.techtarget.com/definition/firewall
					 			         
					                  
						          
					                - 	
					                 		        				  								  
					 			      	Firewall (Computing) - Wikipedia
					 			      	 
					                  	In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.
					                  	https://en.wikipedia.org/wiki/Firewall_(computing)