Deploy Security Enterprise Network Enterprise class Software firewall guide article

Firewall in the network application is quite common, we all know, firewall hardware firewall and software firewall. Before, the author introduced the hardware firewall principle, and recommended a few more popular enterprise hardware firewall products. This time, I will talk to you about network security protection software firewall.

The definition of firewall software is a software that resides between the computer and the network to which it is connected. All network traffic that is flowing into and out of the computer passes through this firewall. Its function is to scan the network traffic that flows through it so that it can filter out some of the attacks so that it is not executed on the target computer. The firewall can also close unused ports. It also prohibits the flow of traffic from specific ports, blocking Trojan horses. Finally, it can prohibit access from a particular site, thereby preventing all traffic from an unknown intruder.

In general PC use, if you use Microsoft Windows XP, you already have a built-in software firewall on your computer. (For more information, see How to open the Internet Connection Firewall in Windows XP) If you are not using Windows XP, you will still need to install a firewall. And this article, we mainly talk about the application of the firewall software on the server.

What must be stated first is that there are usually two ways to use the server, one is the hosted server, or the server in the IDC rental, the need is a stand-alone firewall, the other is a company or school LAN server, which is generally used as a bridgehead for network exports, to protect the security of the entire local area network, Use a dedicated gateway firewall at this point. Of course, the firewall software also has the corresponding operating system, the different operating systems used by the firewall is certainly a far cry, the current mainstream operating system is, of course, Windows and Linux, this article is mainly for enterprise users. Enterprise-class applications, users can according to the characteristics of the enterprise itself, to take the corresponding security solutions. On the personal computer, we often see Skynet firewall, Norton Personal Firewall, rising Personal firewall, KV Personal firewall and so on. But for the enterprise user's application, its firewall software's function is more formidable and consummates. Next, let's look at what kind of firewall product the enterprise users are using.