Firewall

Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies. It is a barrier that sits between a private internal network and the public Internet. A firewall’s main purpose is to allow non-threatening traffic in and to keep dangerous traffic out.

Visit the following resources to learn more:

• What is Firewall?
• Types of Firewall
• Introduction of Firewall in Computer Network
• What is Firewall in Computer Network?
• Why do we need Firewalls?
• Firewalls and Network Security - SimpliLearn