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What Is A Firewall Configuration?

Firewalls are network security devices (software or hardware) that are essentially a barrier that sits between your devices and the internet, or other external sources of data. Firewalls form an essential part of any company’s cybersecurity architecture, overseeing the safety of outgoing and incoming network traffic.

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Firewall Configuration

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How Do Firewalls Work?

Firewalls work by assessing the incoming traffic based upon a predetermined set of rules.

The firewall filters traffic from suspicious or unsecured sources, and this sits at the traffic entry point of a computer or laptop. These entry points are known as ports. It is at the ports where data from external devices is exchanged.

Why Have A Firewall?

A firewall is an integral part of an organisation’s cybersecurity strategy. When combined with other security measures, it can be highly effective.

Your firewall can have its own distinct set of rules for outgoing and incoming server traffic. Outgoing rules are equally important to incoming rules. This is because if the server has been compromised by a cybercriminal, then the outgoing firewall rules can stop unwanted outgoing communication.

Internal & Perimeter Firewalls

Firewall Best Practices

Firewall configuration best practices include using internal firewalls in addition to your perimeter firewall. Your perimeter firewall only protects your systems from attacks or malicious activity, that originates from the outside.

Internal firewalls offer a degree of protection against insider attacks and protect individual assets in the network. This makes it much harder for an attacker to move from one system to another and this gives you more time to respond to an attack.

Needs Regular Analysis

Keep On Top

You should employ a cybersecurity management company who will check for regular security updates to firewall software.

Just like any other software, firewall software can have vulnerabilities. The firewall software creators will provide updates, called patches, to remove these vulnerabilities as they are discovered.

Frequently Asked Questions

Browse our frequently asked questions or Contact us if you have any further enquiries.

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