servers — Apollo

SERVERS -- General Information                       83/08/08


  A SERVER is a process that provides local and/or network access to some
  resource, such as the use of a hardware device like a printer.  A server
  runs within a process, which may have the normal windows and pads open
  into it or be running invisibly in the background.  Servers that are run
  in visible processes (those with windows) have the same identity (SID) as
  the user who invoked them and they are terminated when that user logs out.
  The same is true for background processes started with the DM command
  CPO (CREATE_PROCESS_ONLY) entered from the keyboard.

  Some servers -- such as NETMAN, which allows a disked node to be a network
  partner to a diskless node -- need to run regardless of whether or not any
  one is logged in.  To provide this capability, the DM command CPS
  (CREATE_PROCESS_SERVER) invokes servers that have the standard server
  identity 'user.server.none'.  Processes started with CPS run in the
  background and remain active across log outs.  Servers that need to be
  available all the time should be started by a CPS command in the node
  STARTUP file, although you may use this command from the keyboard, if
  necessary.  For more detailed information about SERVERS, see the
  "DOMAIN Network Administrator's Guide.

  More information is available.  Type:

    - HELP DISKLESS
      for information about the diskless node server

    - HELP PRSVR
      for information about the print server

    - HELP MBX
      for information about the mailbox server and user interprocess
      communication (IPC)

    - HELP NETMAIN_SRVR
      for details about gathering network error statistics

    - HELP CPO and HELP CPS
      for information about those server process creation commands
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