NFS Services Administrator's Guide

Troubleshooting NFS Services
Logging and Tracing of NFS Services
Chapter 8 349
If you do not specify a log file for the other NFS services (with the -l
option), they do not log any messages. The NFS services can all share the
same log file.
Type man 1M rexd for descriptions of the messages logged by the
rpc.rexd daemon.
For more information, see the following man pages: rexd(1M),
rstatd(1M), rusersd(1M), rwalld(1M), and sprayd(1M).