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       /etc/dnetd.conf - DECnet objects file


       /etc/dnetd.conf  is an ASCII file which contains the description of the
       objects known to the DECnet super-server dnetd.

       There is one entry per line, and each line has the format:

              Name  Number Authenticate User command

       The field descriptions are:

              Name      The name of the  object.  For  numbered  objects  this
                        appears  only  for  documentation  purposes. For named
                        objects it is the  actual  object  name.  There  is  a
                        special object name * which can execute an arbitrarily
                        named program or script (see later).

              Number    the DECnet object number. These numbers  should  match
                        the   well-known   object  numbers  in  a  VMS  object
                        database. If the object number is zero then  the  name
                        is  used.  There should be no duplicate object numbers
                        in the file apart from number 0.

                        Whether to  authenticate  incoming  connections.  This
                        flag  should  be  a  Y  or N. If it is Y then incoming
                        connections  will  be  authenticated  either  by   the
                        username and password given on the remote command line
                        or by the DECnet proxy database decnet.proxy.   If  it
                        is  N  then the next field specifies the username that
                        the daemon will be run as.

              Username  The username  that  daemon  will  be  run  as  if  the
                        incoming   command   is   not  authenticated  (ie  the
                        Authenticate flag is set to N). if this username  does
                        not  exist, and Authenticate is set to N then incoming
                        connections for that object will fail.

              Command   This is the name and arguments of the command  to  run
                        when a connection is received for the object. If it is
                        the string "internal" then the object will be  handled
                        by   dnetd  if  it  can.  Currently  only  MIRROR  and
                        arbitrary TASKs can be handled internally by dnetd.
                        If the name starts with a slash then it is assumed  to
                        be  the  full  path of the program to run. If not then
                        dnetd will search its default  directory  for  program


       When  an  incoming connection is handled by dnetd it forks and executes
       the command named in the command field with stdin and  stdout  pointing
       to  the  DECnet  socket.  stderr  will  be set to /dev/null. The DECnet
       daemons supplied in the dnprogs suite automatically detect this and  so
       can be run from dnetd or standalone.
       There  is  a  subtle  difference between objects handled by the special
       name * and those explicitly named in the file:
       Objects handled by name "*" internally  are  run  under  control  of  a
       pseudo-tty  which  means  they  appear  to be talking to a terminal and
       CR/LF conversion will be  done  so  that  TYPE  "0=TASK"  will  produce
       sensible output on VMS.
       Objects  explicitly named just connect directly to the DECnet socket so
       cannot take advantage of tty services and do not have CR/LF  conversion
       done  for  them.  Of  course  these objects are more secure because the
       system administrator has total control over which objects can be run.
       dnetd  will  convert  all  task  names  to  lower  case.  This  is  for
       convenience  more  than  anything  else  because  VMS  converts them to
       uppercase and all uppercase files names are unwieldy on Unix.
       It is recommended that arbitrary objects be run as a special  anonymous
       user to avoid security problems.
       Any  changes to /etc/dnetd.conf will take effect immediately you do not
       need to tell dnetd that it has changed.


       This is the  default  file  provided.  Note  that  the  "*"  object  is
       commented out for security reasons.
          # /etc/dnetd.conf
          # name         number     auth?     user       command
          FAL            17         Y         none       fal
          MIRROR         25         Y         root       internal
          MAIL           27         N         vmsmail    vmsmaild
          CTERM          42         N         root       ctermd
          DTERM          23         N         root       rmtermd
          # *               0         Y         none       internal


       decnet.proxy(5), dnetd(8)