Firewalls: What They Are & Why Use Them

This article will provide some basic information as to the function of a firewall, as well as providing instructions on how to ensure your firewall(s) are enabled.

Faculty & StaffFor Wharton-imaged or Wharton-provided devices, you may not be able to change Firewall settings. For additional questions or requests, please reach our to your IT support representative.

What is a firewall?

  1. A firewall is a network security system that establishes a barrier between a trusted, secure internal network and another network that may not be secure.
  2. Additionally, a firewall can help prevent hackers or malicious software (such as worms) from gaining access to your computer through a network or the Internet. A firewall can also help stop your computer from sending malicious software to other computers.

 

Diagram of a Firewall


Enable/Disable Firewall

Warning: Only turn off your Firewall if you are installing a separate antivirus software that includes a firewall and active defender.

Microsoft 

Follow Microsoft's directions on how to turn your Firewall on or off.

(MacOS)

Follow Apple's directions on how to turn your Firewall on or off

Allow Trusted Applications

You can allow applications you trust. Only choose this option for application you  know are safe.

Questions?

Students - Wharton Computing Student Support

Faculty - Academic Distributed Representatives

Staff - Administrative Support