In 2012, NSS Labs found that most available NGFW solutions "fell short in performance and security effectiveness." In 2013 NSS Labs noted "marked improvement" and bestowed their "recommended" rating on 6 vendors. Click here to find out who they were.
With so many vendors claiming to have a Next Generation Firewall (NGFW), it can be difficult to tell what makes each one different. John Pescatore of SANS Institute explains what enterprises look for when considering alternative NGFW solutions.
If you already use NetBeans for Java or C/C++ development, then it should probably be your top choice as a Rails IDE as well. Delivering strong editing and navigation along with good debugging and profiling, it's a very capable and highly integrated Rails IDE. And it's free.