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NAME    [Toc]    [Back]

       evmd - Event Manager daemon

SYNOPSIS    [Toc]    [Back]


OPTIONS    [Toc]    [Back]


OPERANDS    [Toc]    [Back]


DESCRIPTION    [Toc]    [Back]

       The Event Manager (EVM) daemon, evmd, receives events from
       posting  clients  and  distributes  them  to   subscribing
       clients  that  have  indicated that they are interested in
       receiving the events. The  daemon  is  a  critical  system
       facility  that  is  started  automatically when the system
       transitions to run level 2, and which should not be terminated.
 The daemon in turn starts the event logger, evmlogger,
 and the channel manager, evmchmgr.

       On startup,  the  daemon  reads  its  configuration  file,
       /etc/evmdaemon.conf,      the      authorization     file,
       /etc/evm.auth, and the event template files  stored  under
       the /usr/share/evm/templates directory. If these files are
       modified while the daemon is  running,  the  evmreload  -d
       command  must  be  used or a SIGHUP signal must be sent to
       instruct the daemon to reconfigure itself.

       The system administrator can control access to  events  by
       modifying the EVM authorization file, /etc/evm.auth.

       As  a  daemon,  evmd does not have a standard output.  Any
       error messages are written to the  file  /var/evm/adm/logfiles/evmdaemon.log.

       The EVM daemon is monitored by the Essential Services Monitor
 daemon, esmd, which automatically restarts evmd if it
       terminates  unexpectedly.   See  esmd(8) for more information.

RESTRICTIONS    [Toc]    [Back]

       The daemon rejects any attempt by a posting client to post
       an  event  that  is  not registered, that contains invalid
       item values, or that the poster is not authorized to post.

EXIT STATUS    [Toc]    [Back]

       The following exit values are returned: Successful completion.
  An error occurred.

FILES    [Toc]    [Back]

       Executable  file  Default  directory  for  event  template
       files.   Default  location  for event filter files. Filter
       files must have the suffix Error log file for evmd.   UNIX
       domain  socket  established for connection between the EVM
       daemon and the local clients.  Daemon process id saved  by
       evmd.   Lock  file established to prevent multiple invocations
 of the daemon.  Default location of the  EVM  daemon
       configuration  file.   Default  location of the EVM daemon
       authorization file.

SEE ALSO    [Toc]    [Back]

       Commands:  esmd(8),  evmchmgr(8),  evmd(8),  evmlogger(8),
       evmreload(8), evmstart(8), evmstop(8)

       Files: evm.auth(4), evmdaemon.conf(4), evmtemplate(4)

       Event Management: EVM(5)

       Event Connection: EvmConnection(5)

       EVM Events: EvmEvent(5)

       Event Filter: EvmFilter(5)

[ Back ]
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