Firewall or WAF? Key differences and choosing the right protection for your business

In the dynamic world of cyber security, organizations need to use the latest tools to protect their systems from growing threats. Two popular solutions – firewall and WAF (Web Application Firewall) – play a key role in protecting networks and web applications. But what are the differences between these technologies? When is it worth investing in a firewall and when in a WAF? In this article, we’ll take a look at these questions and show how Palo Alto Networks helps companies choose and implement the optimal solutions. For more information, visit the Palo Alto Networks website.

Table of Contents

1. What is a firewall?
2. What is WAF?
3. Key differences between a firewall and a WAF
   • Scope of protection
   • Application in practice
   • Types of threats
4. How does Palo Alto Networks support companies in selection?
5. Which solution is best for your business?
6. FAQ: Frequently Asked Questions

What is a firewall?

A firewall is a basic network security tool that acts as a barrier between an organization’s internal network and external sources such as the Internet. Its main tasks are:

• Monitor and control network traffic based on established policies.
• Prevent unauthorized network access.
• Protection against threats such as DDoS attacks and viruses.

Next-generation firewalls, such as those offered by Palo Alto Networks, provide additional features such as behavioral analysis and protection against zero-day threats. Learn more on the Palo Alto Networks website.

What is WAF?

Web Application Firewall (WAF) is a tool specifically designed to protect web applications. WAF works at the application level, analyzing HTTP/HTTPS traffic to detect and block attacks targeting applications, such as:

• SQL injection attacks.
• Cross-site scripting (XSS).
• Exploitation of vulnerabilities in application code.

WAF is ideal for companies that use web-based applications and want to protect their users’ data from leakage.

Key differences between a firewall and a WAF

Scope of protection

• The firewall protects the network and devices from external threats by operating at the network level.
• WAF focuses on protecting web applications from application-level threats.

Application in practice

• Firewall: Ideal for companies that want to secure their entire network infrastructure, including servers, workstations and IoT devices.
• WAF: Mainly used in environments where protecting web applications and their users is a priority.

Types of threats

• Firewall: Protects against network threats such as malware, phishing and DDoS attacks.
• WAF: Blocks attacks specific to web applications, such as SQL injection and XSS.

How does Palo Alto Networks support companies in selection?

Palo Alto Networks is a leader in cyber security, offering both advanced firewalls and WAF solutions. Their tools provide:

• Integration: Combine firewall and WAF functionality in a single ecosystem.
• Automation: Use artificial intelligence to analyze and block threats in real time.
• Scalability: Customized solutions for small businesses as well as large enterprises.

Learn more about Palo Alto Networks products on the Palo Alto Networks website.

Which solution is best for your business?

The choice between firewall and WAF depends on the specifics of your company and its needs:

• If your priority is to protect your network, a firewall will be an essential tool.
• If the main threat is attacks on web applications, WAF will be more appropriate.
• The best solution is often a combination of both technologies, which provides comprehensive protection.

Palo Alto Networks offers products that can work in synergy to deliver both network and application protection.

FAQ: Frequently Asked Questions

Can a firewall and WAF work together?

Yes, the combination of firewall and WAF allows for comprehensive protection of both networks and web applications.

Can WAF replace a firewall?

No, WAF and firewall have different functions and are designed to protect different layers of IT infrastructure.

What kind of WAF solution does Palo Alto Networks offer?

Palo Alto Networks offers advanced solutions that integrate WAF functionality with their Next-Generation Firewall (NGFW) systems.

Does Palo Alto Networks offer technical support?

Yes, Palo Alto Networks provides technical support and training to help companies deploy and manage their solutions.