What does firewall mean?

A firewall refers to a group of systems that enforces access control policies. Firewall technology is a type of technology that helps computer networks build a relatively isolated protective barrier between internal and external networks by organically combining various software and hardware devices for security management and screening to protect the security of user data and information. technology.

#The operating environment of this article: windows10 system, thinkpad t480 computer.

A firewall refers to a group of systems that enforces access control policies.

Firewall technology helps computer networks build a relatively isolated protective barrier between the internal and external networks by organically combining various software and hardware devices for security management and screening to protect user data and A technology for information security.

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The function of firewall technology is mainly to promptly discover and deal with possible security risks, data transmission and other issues that may exist when the computer network is running. , the processing measures include isolation and protection, and at the same time, various operations in computer network security can be recorded and tested to ensure the security of computer network operations, protect the integrity of user data and information, and provide users with better and more A secure computer network experience.

Importance of firewall:

1. Record data information in the computer network

Data information has a positive role in promoting the construction of computer network, and at the same time It also has a certain impact on computer network security. Firewall technology can collect data transmission, information access and other aspects of the computer network during its operation. At the same time, the collected information can be classified and grouped to find out the data information with security risks and take targeted measures. Solve it to effectively prevent these data information from affecting the security of the computer network. In addition, after summarizing the data information recorded in the firewall, staff can clarify the characteristics of different types of abnormal data information, which can effectively improve the efficiency and quality of computer network risk prevention and control work.

2. Prevent staff from accessing websites with security risks

A considerable part of computer network security problems are caused by staff entering websites with security risks. Through the application of firewall technology, the operations of staff can be monitored in real time. Once it is discovered that a staff member is about to enter a website with security risks, the firewall will immediately issue an alarm, thereby effectively preventing staff from mistakenly entering websites with security risks and effectively improving access. Job security.

3. Control unsafe services

Many unsafe services will appear during the operation of the computer network, and these unsafe services will seriously affect the security of the computer network. The application of firewall technology can effectively reduce the actual operational risks of staff. It can effectively intercept unsafe services and effectively prevent illegal attacks from affecting computer network security. In addition, firewall technology can also monitor various tasks in the computer network, thereby enabling computer users to perform various tasks in a safe and reliable environment, effectively preventing computer network problems from causing problems to users. come economic losses.

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