An example of a message from SunOS:
Jan 5 14:45:37 host1 portmap: connect from 126.96.36.199 to callit(ypserv): request from unauthorized host
request from unprivileged port
request from non-local host
request not forwarded
In the Solaris operating environment, the error might look similar to the following:
Jan 5 14:45:37 host1 rpcbind: refused connect from 188.8.131.52 to callit(ypserv)
In all cases, the ypserv part of the message might actually be any RPC service, such as mount or nfs or status.