The number one problem websites encounter from the time it primarily existed online is its protection. The developers fear for the safety of their website from the vicious intentions of many of the criminals lurking within the online community. And, the only solution to this persisting problem is the use of a device termed as web application firewall (WAF).
SQL Injection - XSS Attacks
Web application firewall or WAF is a device that establishes a compilation of regulations to a specific HTTP conversation. The directives are all aimed at the common assaults that occur online that include both SQL Injection and Cross-site Scripting (XSS).
The user is given the prerogative to modify the rules to the web application according to the precise security needs. Hence, the online attacks may be easily detected and then it may eventually prevent occurrence of harm on the website and its visitors.
WAF Host Based
As what has been said, the creators of the website have the choice to alter the rules of the WAF. According to the function of WAF, it can check and it can most likely obstruct the input, output, or system service calls that do not coincide with the firewall policy set by the web developer. This original function of this tool is to supervise various web applications and services like web or database service. Lastly, the web application firewalls or WAFs are divided into two different classes: host-based application firewalls and network-based application firewalls.
It is very advantageous to use a web application firewall (WAF) since it can protect a website from highly-damaging attacks performed by online crooks. It can also prevent the widespread identity theft that occurs online and it avoids disclosure of confidential data from the web applications.
However, users should always be reminded that it is important for the developers to carefully make use of the web application firewall since the adjustments on WAF can greatly affect the expected results. Also, creators of the websites should always bear in mind that there should be simultaneous alterations made whenever the web applications are updated.