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       zhm - Zephyr HostManager


       /etc/athena/zhm [ -d ] [ -h ] [ -r ] [ -i ] [ -f ] [ server ...  ]


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


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


       David C. Jedlinsky, MIT Project Athena


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