How to use the GUI to configure the Linux system firewall

With the rapid expansion of bandwidth, the information exchange on the Internet is increasing, there is no doubt that the security of the Internet, operating system platform security has gradually become a matter of concern. and many network servers, workstations used by the platform for the Linux/unix platform. Linux platform as a security, stable and relatively high operating system has also been applied to the commercial or civil Network service areas.

Although Linux is a relatively high safety factor operating system, but because it as a dynamic, still evolving operating system, it is still inevitable that there is such a problem. In addition to Linux distribution is very much, version of the frequent upgrades, there are still many defects in the market, no security patches to upgrade the Linux application to the network server, and Linux users, managers of the actual operation of management experience is uneven, So in the Internet era of Linux platform, there are some security risks. It also gives unethical "hackers" a "backdoor" to attack the Linux platform. So, how to improve the safety factor of Linux and how to protect Linux system is a very important work.

In the Windows platform world, there are many firewalls and security tools designed for Microsoft Windows. The world's leading software developers such as Symantec, McAfee are tailored to Windows system firewall, anti-virus software and anti-hacker software, and so on. A "firewall" is a method and technology that separates the intranet from the Public access network (the Internet), which means that the firewall is actually an isolation technique. A firewall is an access control metric that is executed when two networks communicate. It allows you to "consent" people and data into your network, while rejecting the people and data that you "refuse", to minimize hackers in your network from accessing your network, preventing illegal intruders from changing, copying, and destroying important information on your computer. Compared with the Windows platform, the Linux operating system is somewhat different, because it built a corresponding firewall or related security software, coupled with experienced system administrators can also open their own firewalls in accordance with their own reality, upgrade the kernel to solve security problems, Therefore, in the Linux platform dedicated firewall tool software is rare. However, this is also inconvenient, whether it is in Linux to configure the firewall or configure the appropriate security settings, it seems that only the system administrator and Linux master to complete, for some just getting started Linux novice, let him in the Linux text mode to complete the Independent It is almost impossible to set up a Linux firewall and its system security.

Since many beginners have a special interest in setting up fast and convenient software tools under Windows, we will introduce two firewall tool software based on GUI design in Linux platform.

One is the commercial version of the Storm Firewall (Storm Firewall), the storm firewall that comes from the Stormix technology company's products. Many system administrators may be more familiar with the product.