What can I do with windows firewall

Using windows firewalls can: 1. Improve the security of an internal network and reduce risks by filtering insecure services; 2. Strengthen network security strategies; 3. Monitor and audit network access and access; 4. Pass the firewall The division of the internal network can realize the isolation of the key network segments of the internal network and prevent the leakage of internal information.



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firewall technology is an organic combination of various software and hardware devices for security management and screening to help computer networks build a relatively isolated protective barrier between their internal and external networks to protect user data A technology related to information security.

What can I do with windows firewall?

1. A firewall is a barrier to network security.

A firewall can greatly improve the security of an internal network and reduce risks by filtering insecure services. Since only carefully selected application protocols can pass through the firewall, the network environment becomes more secure. For example, the firewall can prohibit the familiar insecure NFS protocol from entering and exiting the protected network, so that external attackers cannot take advantage of these vulnerabilities Protocol to attack the internal network, and the firewall can also protect the network from route-based attacks. For example, source route attacks and ICMP redirect paths in IP options.

2. Network security strategy can be strengthened.

Through the firewall-centric security program configuration, all security software can be configured on the firewall. Compared with distributing network security issues to various hosts, the centralized security management of the firewall is more economical.

3. Monitoring and auditing network access and access.

If all accesses go through the firewall, the firewall can record these accesses and make log records. At the same time, it can also provide statistics on network usage. If suspicious actions occur, collect one Network usage and misuse are also very important, and network usage statistics are also very important for network demand analysis and threat analysis.

4. Prevent leakage of internal information

By dividing the internal network by the firewall, the key network segments of the internal network can be isolated, thereby limiting the impact of local key or sensitive network security issues on the global network. Secondly, privacy is a problem that the internal network is very concerned about. In an internal network Unintended details may contain clues about security that arouse the interest of external attackers, and may even expose some security loopholes in the internal network. The use of firewalls can conceal services that reveal internal details.