A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies. different types of firewall 1. Hardware Firewalls 2. Software Firewalls 3. Cloud Firewalls 4. Proxy Firewalls 5. Client-Level Firewalls 6. Stateful Inspection Firewalls 7. Pocket-Filtering Firewalls 8. Next-Generation Firewalls
Hardware Firewalls are security devices that represent a separate piece of hardware placed between an internal and external network.
A software firewall is installed on the host device. Since it is attached to a specific device.It has to utilize its resources to work. Therefore, it is inevitable for it to use up some of the system's RAM and CPU.
A Cloud firewall or firewall-as-a-service (Faas) is a cloud solution for network protection. Like other cloud solutions, it is maintained and run on the internet by third party vendors.
It serves as an intermediate device between internal and external systems communicating over the internet. It protects a network by forwarding requests from the original client and masking it as its own.
Circuit-Level gateways are a type of firewall that work at the session layer of the OSI model, observing TCP (Transmission Control Protocol) connections and sessions.
Circuit-Level gateways are a type of firewall that work at the session layer of the OSI model, observing TCP (Transmission Control Protocol) connections and sessions.
Packet-Filtering Firewalls serves as an inline security checkpoint attached to a router or switch. As the name suggests, it monitors network traffic by filtering incoming packets according to the information they carry.
The next-Generation firewall is a security device that combines a number of functions of other firewalls. It incorporates pocket, stateful, and deep packet inspection.
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