How to choose the best Application Firewall for your business?
If your company has a strong presence on the Internet through a website or an online store, it is essential that you keep it secure. There are so many attacks such as cross-site scripting (XSS), SQL injection and cookie poisoning that the best thing in these cases is to have a Web Application Firewall (WAF) ready to deal with these threats.
Remember that if your online service is secure and stable, you guarantee sustainability and tranquility in your work. A WAF is a service that acts as a barrier to constantly monitor and filter HTTP requests, stopping malicious traffic.
How do WAFs work to protect your website?
A WAF operates at Layer 7 to inspect inbound and outbound traffic and can identify and block scanners, hackers, and bots, while preserving and accelerating legitimate application use.
This type of firewall can protect web applications from a number of threats such as D attacks.distributed denial of service (DDoS),session hijacking,Access Violations, API Manipulations and Attacks, HTTP/S Floods, Server Side Request Forgery, among many others.
There are several types of web application firewalls such as network-based, host-based, and cloud-based WAFs. Today we will explain the characteristics of each one so that you have more elements before choosing the right one for your business.
Types of Web Application Firewalls
Network-based WAFs:This type of firewall is usually hardware based and when installed locally, it uses dedicated equipment and is as close as possible to the application to minimize latency rates. Hardware-based WAFs allow us to copy rules and settings between different devices. The big drawback is that having to do the installation locally requires storage capacities and continuous physical maintenance. The alternative in these cases is usually to run that WAF as a virtual appliance, using Network Function Virtualization (NVF) technology or in the public cloud.
Host-based WAFs:This model represents lower investment costs, although they are generally more complex to implement. A host-based WAF requires specific libraries to be installed on the application server and depends on the server’s resources. This dependency condition of the web application implies that we have to manage it throughout the entire life cycle.
Cloud-based WAFs:With physical hardware investment costs reduced to zero, these WAFs offer great business value because they are not dependent on server resources. With an administration from the cloud it is possible toachieve a proactive defense against bots, advanced application protection, threat intelligence and machine learning. Another advantage is that its implementation is usually easy with a service fully configured and maintained by certified experts. These cloud-based solutions have access to constantly updated threat intelligence and can also offer managed services to help you better define security rules and respond to attacks.
As we have already verifiedWeb Application Firewalls are aEssential tool for businesses to protect your online business.
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