This chapter begins by covering services that are useful, and in some cases necessary, and moves on very quickly to utilities used primarily for diagnostics and troubleshooting.

If you are involved with configuring and maintaining computer networks, it is a virtual certainty that, at some point, a network will not function as intended. Fortunately, pfSense provides us with a number of services and applications to help us troubleshoot networking issues. This chapter focuses on those services and applications.