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       fal - File Access Listener for DECnet


       fal [options]
       [-dvVhmt]  [-l  logtype]  [-a auto-type] [-f <auto-file>] [-r <virtual-


       fal is a  daemon  that  serves  incoming  DAP  (Data  Access  protocol)
       connections  from remote systems. It enables transparent file access to
       files from OpenVMS machines using standard DECnet syntax.  It should be
       started at system boot time (after DECnet has been started) and must be
       run as root.
       The file names output by fal will adapt depending on the sytax of files
       that  are  requested  of  it. If VMS-style filenames are requested then
       VMS-style filenames will  be  returned.  If  Unix-style  filenames  are
       requested  then  Unix-style  (native)  filenames will be returned. Note
       that to force fal to diplay the contents of a directory with Unix-style
       names  the  name  must  end  in  a  slash or have some form of wildcard
       character in it.
       When returning VMS-style filenames, all  names  will  be  converted  to
       upper  case,  directories  will  have  .DIR  appended  to  them and all
       filenames will have a version  number  of  1.   In  addition  fal  will
       construct  a  volume  and  directory syntax for the directory that will
       look familiar to VMS users. Of course it also understands  this  syntax
       when  files  and  directories  are requested of it. One of the problems
       with this is that Unix filenames with non-VMS syntax (eg double dots or
       "funny"  characters) or files with uppercase letter in their names will
       not be accessible from VMS using VMS syntax. You must use  Unix  syntax
       to access these files through FAL.
       The  options  below affect the behaviour of fal. If you are using dnetd
       then these options should be specified in the dnetd.conf(5) file.
       By default all files sent by fal will be sent in STREAMLF format.  This
       is configurable by the many command-line switches detailed below.


       -l     Set logging options. The following are available:
              -lm  Log  to /dev/mono. (only useful if you have my mono monitor
              driver or mdacon and a second monitor)
              -le Log to stderr. Use this for debugging  or  testing  combined
              with -d.
              -ls  Log  to  syslog(3).  This  is the default if no options are

       -a     Set algorithm for automatically selecting file types.
              -ag Guess file type based on first few bytes
              -ae Check file extension against a table
              By default all files will be sent/received as STREAMLF

       -f <filename>
              Specify the filename used to check file extensions.  Only  valid
              with -ae.  The format if the file is simple:
              extension  <b/r> <block size>.
              In fact, ’r’ is more of a comment than an instruction but it may
              be used in  future  to  support  proper  variable-length  record
              By  default  an  internal  table  is  used with some common file
              extensions. It is as follows:
               #Generic types
               .txt  r
               .c    r
               .cc   r
               .log  r
               .html r
               # VMS types
               .com  r
               .lis  r
               .bck  b 32256
               .save b 8192
               .exe  b 512
               .zip  b 512
               #Linux types
               .tar  b 10240
               .gz   b 512
               .tgz  b 512
               .bz2  b 512
               # End of file

       -u     Enable users to override the two above options with a  .fal_auto
              file  in  her/his  home  directory.  This  file should contain a
              single word: guess, ext or none.  Note that -u and  a  .fal_auto
              file takes effect even if no -a option is present.

       -m     Use  the meta-file directory (normally named .fal) to store file
              attributes. Metafiles will override any guessed or checked  file

       -t     Instruct FAL for look for .$ADF$ files created by the NFS Client
              in TCP/IP for VMS V5.0+ and use them  to  get  file  attributes.
              This option can be used with the -m and -a flags in which case a
              .$ADF$ takes precedence over a fal metafile or  a  guessed  file

       -r <virtual root>
              Run  FAL  in  a  "virtual  root". All file accesses will be done
              below this directory rather than the normal root filesystem.  ie
              access for "/" or "SYSDISK:[000000]" will start at the specified
              directory. Requests for ".." will be refused.  NOTE: This is not
              a  chroot,  fal  still  runs in the normal filesystem. also note
              that  this  will  lose  the  ability  to   access   users   home
              directories:  all  users  doing a "DIR LINUX::*.*" from VMS will
              see the virtual root instead.

       -d     Don’t fork and run the background. Use this for debugging.

       -v     Verbose. The more of these there are the more verbose  fal  will
              be. Don’t use more than one for normal operation because it will
              seriously impair performance.

       -h -?  Displays help for using the command.

       -V     Show the version of fal.


       decnet.proxy(5),   dnetd(8),   dnetd.conf(5),   dntype(1),    dndir(1),
       dndel(1), dntask(1), dnsubmit(1), dnprint(1)