Firewall ABC 2

Has a very good firewall protection. Intruder must first pass through the firewall security line of defense in order to access the target computer. You can configure the firewall into a number of different levels of protection. A high level of protection may be to prohibit certain services, such as video streaming, and so on, but at least it is to protect your own choice.
There are different types of firewall. A hardware firewall can be a part of their own, you can connect to the Internet and the computer to insert all of them. A firewall can also run on separate machines, the machines behind it as a network of agents and all the computer firewall. Finally, even direct the machine on the Internet can use personal firewall.
Of course, since the intention to understand the easy-to-digest, it is necessary to take a look at the concept of a firewall. Firewall is a car in the name of the parts. In the car, use a firewall to separate passengers and the engine, so that once the fire engine, the firewall will not only protect the safety of passengers, while at the same time so that drivers can continue to control the engine. Another computer terminology, of course not be interpreted that way, we can come to understand the analog network, the so-called "firewall" refers to an internal network and the public access network (such as the Internet) separate ways, it is actually A separation technology. Firewall is a network of communications in both the implementation of an access control measure, it allows you to "consent" and the data you enter the network at the same time you will "not agree" and the data out to the maximum Network to prevent hackers access to your network. In other words, if not through the firewall, the company's in-house who will not be able to access Internet, Internet on people and companies can not carry out internal communications.