Safe Execution of System and Remote Procedure Calls
Chris Snyder, Thomas Myer, Michael Southwell · Apress eBooks · 2010
In this chapter, we will explore how to isolate the execution of potentially dangerous system commands and Remote Procedure Calls (RPCs). Up to this point in the book, we’ve been discussing your PHP applications and the users (both human and otherwise) that interact with it; for the first time we’re now veering into the system and environment that your PHP application resides in. We’re still talking about your application and the interfaces it makes available to system-level calls and remote procedures.