5.209 Securing the Connection with Moab

MWS communicates with Moab via the Moab Wire Protocol, which uses a direct connection between the two applications. The communication over this connection uses a shared secret key, which is discussed in the installation instructions. See Installing Moab Web Services in the Moab HPC Suite Installation and Configuration Guide. However, the communication is not encrypted and is therefore susceptible to eavesdropping and replay attacks. For this reason, MWS is supported only when running on the same machine as Moab. This assures that any connections between the two applications occur internally on the server and are not exposed to external users.