Do you have knowledge about firewall devices?

Yes, I have knowledge about firewall devices.

• Firewall devices are used to monitor and control incoming and outgoing network traffic based on predetermined security rules.

• They can be hardware-based or ...read more

In computing, a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier...read more

firewall is a network security divice which is use filtering the packet.this establish the barrier between source and destination . its available in software and hardware.

It is allow the desired traffic and block the unwanted traffic i.e called firewall.