Protect your network

Source: Anhui Hotline

What effective measures should hackers take to prevent intrusions? As the saying goes: It's not too late to make up for it. Human society is always moving forward in the constant struggle of evil forces. There is always a way to effectively prevent hacker intrusion and protect your computer systems.

To establish a computer security system, enterprises should also select the security level based on the actual situation of their organizations, and select the appropriate hardware and software facilities and investment. Users who have established an internal enterprise network can describe in three situations based on their business volume on the Internet.

1. No Internet connection

This type of organization only requires the establishment of a preliminary computer network security system, mainly including the following:

1. Select the system administrator. This is the final line of defense. If the system administrator becomes a hacker, the loss will be inevitable.

2. System Administrators should have institutional restrictions to eliminate security risks. For example, restrict the Administrator's operation permissions and monitor the Administrator's actions.

3. The computer operator must specify the specific permissions. The password of each person should be modified on a regular or irregular basis. The password should be composed of digits and letters, and should contain as many characters as possible.

4. Prevent html "> virus intrusion into the system. To strictly restrict the use of external disks, a virus-killing software that has been tested by the National Computer Security product testing center should be provided to promptly detect and kill viruses in suspicious situations.

5. Strengthen data center management and strictly restrict external personnel from entering the data center to use computers.

Ii. occasional use of the Internet

This type of organization is characterized by the need to check the information of several fixed sites every day, such as newspapers and magazines, stock quotations and related sites in the industry. In addition to the above five requirements, these organizations should also take the following measures:

1. Set up a proxy server. Every day, a dedicated person is responsible for regularly receiving the information of these fixed sites. Once received, the server is immediately disconnected from the Internet. When receiving a message, it is best to remove the proxy server from the enterprise intranet.

2. In the enterprise intranet, especially on servers, operating system software of higher versions, such as UNIX Open Server 5.0.4 and Windows NT 4.0, should be used whenever possible. The security level of the operating system should be the highest level that the system software can provide.