An industrial firewall is a specialized network security device primarily used to protect industrial networks from external attacks and malicious software. It is mainly composed of the following components:
Hardware Platform: The hardware platform commonly used for industrial firewalls to ensure stable operation under high-load environments.
2. Software System: The industrial firewall's core is its software system, which includes components such as the firewall engine, security policy manager, and log analysis tools.
3. Firewall Rules: Firewall rules refer to a set of rules used to control network traffic, which can be used to block or allow specific types of network traffic to pass through the firewall.
4. Security Policy: A security policy refers to the set of security regulations established by a company or organization, aimed at ensuring the security of industrial networks.
5. Log Record: The industrial firewall logs all incoming and outgoing packets on the network, generating detailed log files for security auditing and troubleshooting.
The components of industrial firewalls are not significantly different from those of standard firewalls, but they have higher requirements in terms of performance, stability, and support for industrial protocols.