A good WAF secures not just your websites and cloud applications but will protect against bots and protect containers, databases, VMs and APIs too. It will have a low rate of false positives, which is becoming critical as the volume of attacks increase. If you are a small business then a cloud-based one has a lower management overhead.
I do NOT have a simple answer.
However, we have to start looking at the OSI Model. WAF only satisfies some but not all OSI layers.
I would list out the requirements, prior to asking this question. With the requirements in place, there are open-source packages that would satisfy most of your requirements (there is NOT one Hat that fits all).
I am using NGINX as an internal WAF. In a normal mode, the internal traffic is a lot less malicious than from the public network.
What is OWASP?
The OWASP or Open Web Application Security Project is a nonprofit foundation dedicated to improving software security. It operates under an open community model, meaning that anyone can participate in and contribute to OWASP-related online chats and projects. The OWASP ensures that its offerings (online tools, videos, forums, events, etc.) remain free and are easily accessible t...
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