DOES WINDOWS FIREWALL REALLY WORK

Personally, I don't need a firewall now.

1. Barrier to network security.

Firewalls can greatly improve the security of the computer network, filter some insecure factors, and thus improve the security of the computer. The firewall will block some software that does not pass the application protocol, so that the network environment will become more secure.

2. Strengthen network security strategies.

Through the firewall-centric security solution configuration, all security software (such as passwords, encryption, authentication, auditing, etc.) can be configured on the firewall. Centralized security management of firewalls is more economical than dispersing network security issues across hosts. For example, when accessing the network, the one-at-a-time password system and other identity authentication systems can be concentrated on the firewall instead of being scattered on each host.

3. Monitor network access and access.

Some practical situations of the computer will be monitored by the firewall, and the firewall will make some log records in time, and can also provide statistics on the practical situation of the network. When it is found that it can be actioned, the firewall will respond to the alarm in time and provide some data for analysis. If there is a manslaughter, then we can also retrieve it in time through the firewall.

4. Leakage of internal information.

The firewall not only prevents the inflow of bad information from the outside, but also prevents the important internal information from being accessed by others. This greatly protects the user's privacy, but you can't be completely assured, or you need to save it in your own personal USB flash drive or hard disk insurance.

In layman's terms: A firewall is equivalent to a filter, monitoring and filtering the data that passes through the gateway, allowing those packets to pass through which packets do not pass, and monitoring the relevant information of packets between network communications for unified management.

Windows Firewall is a device that helps ensure information security by allowing or restricting the passage of transmitted data according to specific rules.

The specific functions are as follows:

1. Prevent malicious attacks from the network;

2. Prevent foreign programs from connecting to computer ports;

3. Protect the computer to prevent Trojan intrusion or other hacker software and program running'4. Prevent local programs from sending concurrent information through the computer port;

It is a built-in security program that prevents viruses from entering the system, and you can disable it if you have another firewall installed.