Distributed Named Pipes (or: dnpipes) are essentially a distributed version of Unix named pipes comparable to, for example, SQS in AWS or the Service Bus in Azure. Conceptually, we're dealing with a bunch of distributed processes (dpN above). These distributed processes may be long-running (such as dp0 or dp5) or batch-oriented ones, for example dp3 or dp6. There are a number of situations where you want these distributed processes to communicate, very similar to what IPC enables you to do on a single machine. Now, dnpipes are a simple mechanism to facilitate IPC between distributed processes. What follows is an interface specification as well as a reference implementation for dnpipes.