What is pmmasterd?
The master daemon pmmasterd, is UPM's decision-maker. pmmasterd receives requests from pmrun, and evaluates them according to the policy written in the configuration file (/etc/pm.conf or other included files). If the request is accepted, pmmasterd asks pmlocald to run the request in a controlled account such as root.
Pmmasterd is only present on UPM Master systems and is initiated from an entry in /etc/inetd.conf.