DAEMON.MN(M)                               UNIX System V



     Name
          daemon.mn - micnet mailer daemon


     Syntax
          /usr/lib/mail/daemon.mn [-ex]


     Description
          The  mailer  daemon  performs  the  ``backend''   networking
          functions   of   the  mail,  rcp,  and  remote  commands  by
          establishing and servicing  the  serial  communication  link
          between computers in a Micnet network.

          When invoked, the daemon creates multiple copies of  itself,
          one  copy  for  each  serial line used in the network.  Each
          copy opens the serial line, creates a  startup  message  for
          the  LOG  file,  and waits for a response from the daemon at
          the other end. The startup message lists the  names  of  the
          machines  to  be  connected, the serial line to be used, and
          the current date and time.  If the daemon receives a correct
          response,  it  establishes  the  serial  link  and  adds the
          message ``first handshake complete'' to the  LOG  file.   If
          there is no response, the daemon waits indefinitely.

          If invoked with the  -x  switch,  the  daemon  records  each
          transmission  in  the  LOG file.  A transmission entry shows
          the direction of the transmission (tx for transmit,  rx  for
          receive),  the number of bytes transmitted, the elapsed time
          for the transmission (in minutes and seconds), and the  time
          of day of the transmission (in hours, minutes, and seconds).
          Each entry has the form:

               direction  byte_count  elapsed_time  time_of_day

          The daemon also records the date and time every  hour.   The
          date and time have the same format as described for the date
          command.

          If invoked with  the  -e  switch,  the  daemon  records  all
          transmission  errors  in the LOG file.  An error entry shows
          the cause of the error preceded by the name  of  the  daemon
          subroutine which detected the error.

          The mailer daemon is normally invoked by the start option of
          the netutil command and is stopped by the stop option.

          During the normal course of  execution,  the  mailer  daemon
          uses   several   files   in   the   /usr/spool/micnet/remote
          directory.  These files provide  storage  for  LOG  entries,
          commands  issued  by  the  remote(C)  command, and a list of
          processes under daemon control.


     Files
          /usr/lib/mail/daemon.mn

          /usr/spool/micnet/remote/*/LOG

          /usr/spool/micnet/remote/*/mn

          /usr/spool/micnet/remote/local/mn*

          /usr/spool/micnet/remote/lock

          /usr/spool/micnet/remote/pids


     See Also
          netutil(ADM)


     (printed 8/23/89)                           DAEMON.MN(M)