GLOSSARY

Web Application Firewall (WAF)

So, what’s a web application firewall (WAF)?

A WAF filters, monitors, and blocks HTTP/S traffic to and from a web application to protect against malicious attempts to compromise the system or exfiltrate data. By inspecting HTTP/S traffic, a WAF can prevent web application attacks such as:

WAFs can come in the form of an appliance, software, or as-a-service, and contain policies (set of rules) customized to an application or set of applications. This customization needs to be maintained as the application is modified.

Learn about key considerations when choosing a WAF >

F5 products that support a WAF include:

  • BIG-IP Application Security Manager (available as an appliance or virtual edition)
  • Silverline Web Application Firewall (available as a fully managed service or as an express self-service)

Learn about F5 security solutions that include a WAF >

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