NAME

       zhm - Zephyr HostManager

SYNOPSIS

       /usr/sbin/zhm [ -d ] [ -n ] [ -h ] [ -r ] [ -i ] [ -f ] [ -N ] [ server ...  ]

DESCRIPTION

       Zhm  is  the  link between a client machine and the zephyr server.  All notices sent from programs on the
       client are funneled through zhm.  This allows all client programs to be much simpler in  function,  since
       the  HostManager is responsible for handling errors, retransmitting lost notices, and holding all notices
       until they are acknowledged.

       The -d option turns on debugging mode, and sends its information to syslog LOG_DAEMON messages.

       The -n option causes zhm to not attempt to put itself in the background.

       The -h option causes zhm to send a shutdown message and exit upon  delivery  of  a  SIGHUP  signal.   The
       normal action on SIGHUP is to send a flush notice to the zephyr server.

       The -r option causes zhm to send a boot notice to the server and exit when the notice is acknowledged.

       The  -i  option  indicates  that  zhm  is  being started by inetd(8).  When this option is specified, zhm
       assumes that file descriptor zero (0) is bound to the UDP datagram port designated for  hostmanager  use.
       In this mode, SIGHUP is handled as if the -h option were specified.

       The  -f  option disables the "flush" operation which allows any client to flush all subscriptions for the
       host.

       The -N option supresses the initial "boot" message that flushes all subscriptions for the host, which  is
       useful if you're restarting zhm on a host that people are using.

       The  optional server arguments are used to replace the set of server names supplied by the hesiod(3) name
       server.

SEE ALSO

       zephyr(1), zephyrd(8), inetd(8)
       Project Athena Technical Plan Section E.4.1, `Zephyr Notification Service'

AUTHOR

       David C. Jedlinsky, MIT Project Athena

RESTRICTIONS

       Copyright (c) 1987,1988 by the Massachusetts Institute of Technology.  All Rights Reserved.
       zephyr(1) specifies the terms and conditions for redistribution.

MIT Project Athena                              November 1, 1988                                          ZHM(8)