What is a Firewall? How They Safeguard Your Network

New firewall 

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted network and an untrusted network, such as the internet.

A firewall can:

1. Block unauthorized access to your network and devices

2. Allow authorized communication between devices and networks

3. Hide internal IP addresses and network segments from external attackers

4. Log security incidents and alert administrators

Firewalls can be:

1. Hardware-based (e.g., routers, firewalls appliances)

2. Software-based (e.g., Windows Defender Firewall, iptables)

Firewalls use various techniques to control traffic, including:

1. Packet filtering (blocking/allowing packets based on source/destination IP addresses, ports, and protocols)

2. Stateful inspection (tracking the state of network connections to ensure they are legitimate)

3. Proxying (intermediating network traffic between devices)

Firewalls are essential for protecting networks and devices from:

1. Hackers and cyber attacks

2. Malware and viruses

3. Unauthorized access and data theft

4. Denial of Service (DoS) and Distributed Denial of Service (DDoS) attacks

In summary, a firewall is a critical security tool that helps safeguard your network and devices from various threats and unauthorized access.

What is a Firewall? How They Safeguard Your Network Friends, in today's video, we will guide you on what a firewall is and how the new firewall installed by the Pakistani government will affect your internet usage. In today's video, we will also guide you on the basic function of a firewall, how it protects your internet from threats, and we will also tell you about the different types of firewalls. But to understand all of this, watch our video till the end so you can grasp the purpose and benefits of a firewall.

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