When using the Permissions file to restrict the level of access
that is granted to remote computers, you should consider the following:
All login IDs that are used by remote computers to log in for UUCP communications must
appear in one and only one LOGNAME entry.
Any site that is called with a name that does not appear in a MACHINE
entry has the following default permissions or restrictions:
Local send-and-receive requests are executed.
The remote computer can send files to your computer's /var/spool/uucppublic directory.
The commands that are sent by the remote computer for execution on your computer must be
one of the default commands, usually rmail.