Additional information available:

COMMUNICATIONROUTINGSERVICE

  The STOP COMMUNICATION command is used to halt the execution of the
  Internet  software.  The data structures for all  local  interfaces
  will be deleted.  The Internet ACP will exit.

  Any automatic route records defined in the UCX$ROUTE database  will
  be deleted.

  To restart the internet software, invoke the command procedure:
    SYS$MANAGER:UCX$INET_STARTUP.COM.

  Format:
    STOP COMMUNICATION

  The STOP ROUTING command is used to halt dynamic routing.

  Note that the dynamic routing tables will not be flushed.

  The STOP SERVICE command is  used to  halt  the  execution  of  the
  specified service.

  All active communication for the specified services will be aborted.

  This command may only be issued after the internet software has been
  initialized (see START COMMUNICATION).

  The only supported services for UCX V1.2 are: RLOGIN and TELNET.

  The service name is required unless the /ALL qualifier is specified,
  and the service name and /ALL qualifier cannot both be  specified in
  the same command.

  Format:
    STOP SERVICE [service_name]

Additional information available:

/ALL

  Stops all supported services.  The /ALL qualifier and a service name
  cannot both be specified in the same command.

  Format:
    STOP SERVICE /ALL