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 dced(1m)                 Open Software Foundation                  dced(1m)

 NAME    [Toc]    [Back]
      dced - DCE Host daemon

 SYNOPSIS    [Toc]    [Back]
      dced [-ifhr] [-w route] [-t Interval] [-b|-p|-s] [-e|prot_seq...]

      rpcd [-f] [-t Interval] [prot_seq...]

 OPTIONS    [Toc]    [Back]
      -h        Prints the dced usage and exits.

      -i        Initializes the dced databases and ACLs and exits. If the
                databases exist, this option displays an error.  See the
                list of databases in the FILES section.

      -b        Starts dced in bootstrap mode with the endpoint mapper
                service and ACLs.  This mode means it may need to wait for
                other daemons such as secd and cdsd before it can perform
                its own initialization.

      -c        Starts dced so it does not require DCE privacy encryption
                for remote key table management.  The default is to use DCE
                privacy encryption.  DCE Privacy encryption is supported
                only by the Domestic (United States and Canada) versions of
                the DCE library and dced.  If the Export version of dced is
                run without -c, then remote key table management is in
                effect disabled; if the Export dced is run with -c, then
                remote key table management is enabled.  However, running
                either version of dced with -c is insecure and not
                recommended, because remote key table management without
                privacy encryption allows an eavesdropper to learn the
                long-term key of a service principal and thus to compromise
                the security of services running as that principal.

      -e        Starts dced without the endpoint mapper service.  No
                protocol sequences are valid for this option.

      -f        Starts the dced or rpcd process in the foreground. The
                default is to run in the background.

      -p        Purges the existing machine context and removes the bindings
                file before starting.

      -r        Starts dced in remote-update mode.  This mode allows DCE
                cell administration tasks to be performed by an
                administrator on a remote machine. By default, dced prevents
                any remote administration to help prevent attacks by a
                malicious administrators.

 Hewlett-Packard Company            - 1 OSF DCE 1.1/HP DCE 1.8 PHSS_26394-96

 dced(1m)                 Open Software Foundation                  dced(1m)

      -s        Starts dced without the security validation service.

      -t        Sets time interval between successive execution of endpoint

      -w        Sets the routing for serviceability.

 ARGUMENTS    [Toc]    [Back]
      route     Establishes the serviceability routing for dced's messages.

      prot_seq  Specifies the RPC protocol sequences that dced or rpcd will
                use.  Possible values include ncadg_ip_udp (for a datagram
                protocol) and ncacn_ip_tcp (for a connection-based
                protocol). A complete list of the protocol sequences
                recognized can be found in dce/ep.idl.

      Interval  Time interval (greater than zero) in minutes between
                successive endpoint scavenger operation.Default time
                interval is 30 minutes.

 DESCRIPTION    [Toc]    [Back]
      The DCE Host daemon is a process that provides services for the local
      host, and is also the server used by remote applications to access
      these host services.

      The daemon can be invoked either as dced or as rpcd.  When invoked as
      dced, it provides by default all of the services described below, and
      it requires that the local host be configured into a DCE cell.  When
      invoked as rpcd, it provides only the Endpoint Mapper and Local
      Location Broker services that were provided by rpcd in earlier
      versions of DCE; The rpcd mode does not require that the host be
      configured into a DCE cell, so this is a simple alternative for hosts
      that run Networking Computing System (NCS) applications or DCE RPConly

      The DCE Host daemon services include the following:

      Endpoint Mapper
                The endpoint mapper service maintains a database called the
                local endpoint map which allows DCE clients to find servers,
                individual services provided by servers, and objects managed
                by services on the host. The endpoint mapper service maps
                interfaces, object UUIDs, and protocol sequence
                registrations to server ports (endpoints). Servers register
                their bindings with the local endpoint mapper, and the
                endpoint mapper service on each host uses the local endpoint
                map to locate a compatible server for clients that do not
                already know the endpoint of a compatible server.

 Hewlett-Packard Company            - 2 OSF DCE 1.1/HP DCE 1.8 PHSS_26394-96

 dced(1m)                 Open Software Foundation                  dced(1m)

      Local Location Broker
                The local location broker service maintains a database
                called the LLB database, which allows NCS clients to find
                NCS servers on the host. This service was provided by rpcd
                in earlier versions of DCE and by llbd in NCS.

      Host Data Management
                The host data management service maintains local files of
                host data that include (among others) the host_name,
                cell_name, cell_aliases, and a post_processors file. The
                post_processors file contains program names matched with the
                other host data items (UUIDs). The dced runs the program if
                the corresponding host data item is changed.  There may also
                be host-specific data files.

      Server Management
                The server management service maintains data that describes
                the startup configuration (srvrconf) and execution state
                (srvrexec) for each server. It also has the functionality to
                start or stop particular servers, and enable or disable
                specific services of servers.

      Security Validation
                The security validation service acts as the client side of
                the security server by assuring applications that the DCE
                Security daemon (secd) that the host is using is legitimate.
                In addition, this service performs a DCE login for the local
                machine principal when dced is invoked, and it automatically
                updates the local machine principal's keys.

      Key Table Management
                The key table management service allows for remote
                maintenance of server's key tables (keytab files).

      The DCE Host daemon must be running before any other DCE-based servers
      are started. Each DCE host must run only a single dced, and it must
      run with root privileges since it typically listens on privileged or
      reserved network ports.  Typically, dced starts each time a host
      boots. (A file called /etc/rc.dce is responsible for configuration
      issues such as deleting the endpoint map database and starting dced.)

      By default, the DCE Host daemon listens on one well-known port for
      each RPC protocol sequence (that is, each combination of an RPC
      protocol and a transport protocol) supported by the host on which it
      is running.  A prot_seq argument lets you limit the protocol sequences
      on which dced listens.

 FILES    [Toc]    [Back]
      dcelocal/var/dced/Ep.db            dcelocal/dce_cf.db
      dcelocal/var/dced/Llb.db           dcelocal/var/dced/cell_aliases

 Hewlett-Packard Company            - 3 OSF DCE 1.1/HP DCE 1.8 PHSS_26394-96

 dced(1m)                 Open Software Foundation                  dced(1m)

      dcelocal/var/dced/Hostdata.db      dcelocal/var/dced/cell_name
      dcelocal/var/dced/Srvrconf.db      dcelocal/var/dced/host_name
      dcelocal/var/dced/Srvrexec.db      dcelocal/var/dced/post_processes
      dcelocal/var/dced/Keytab.db        dcelocal/bin/dcecf_postproc
      dcelocal/var/dced/Acl.db           /krb5/v5srvtab

      Commands: hostdata(1m), endpoint(1m), server(1m), secval(1m),
      keytab(1m), attribute(1m)

      Library calls: dce_server*(3), dced_*(3), rpc_mgmt_ep*(3)


 Hewlett-Packard Company            - 4 -OSF DCE 1.1/HP DCE 1.8 PHSS_26394-96
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