If you divide the application deployment location of the firewall, you can divide it into border firewall, personal firewall, and hybrid firewall.
Boundary firewalls are the most traditional ones. They implement the isolation of internal and external networks and their internal and external networks to protect the internal networks of borders. These types of firewalls are generally of hardware type, they are more expensive and have better performance.
The personal firewall is installed on a single host and only a single host is protected. Such firewalls are used by a wide range of individual users, usually software firewalls, and are the cheapest and the worst.
A hybrid firewall can be said to be a "distributed firewall" or "embedded firewall". It is a complete firewall system composed of a number of hardware and software components distributed between internal and external network boundaries and internal hosts. The communication between internal and external networks is filtered, and the communication between hosts in the network is filtered. It is one of the newest firewall technologies with the best performance and the most expensive price.
Boundary firewalls are the most traditional ones. They implement the isolation of internal and external networks and their internal and external networks to protect the internal networks of borders. These types of firewalls are generally of hardware type, they are more expensive and have better performance.
The personal firewall is installed on a single host and only a single host is protected. Such firewalls are used by a wide range of individual users, usually software firewalls, and are the cheapest and the worst.
A hybrid firewall can be said to be a "distributed firewall" or "embedded firewall". It is a complete firewall system composed of a number of hardware and software components distributed between internal and external network boundaries and internal hosts. The communication between internal and external networks is filtered, and the communication between hosts in the network is filtered. It is one of the newest firewall technologies with the best performance and the most expensive price.
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