gnupg: Dirmngr Commands

 
 3.1 Commands
 ============
 
 Commands are not distinguished from options except for the fact that
 only one command is allowed.
 
 '--version'
      Print the program version and licensing information.  Note that you
      cannot abbreviate this command.
 
 '--help, -h'
      Print a usage message summarizing the most useful command-line
      options.  Note that you cannot abbreviate this command.
 
 '--dump-options'
      Print a list of all available options and commands.  Note that you
      cannot abbreviate this command.
 
 '--server'
      Run in server mode and wait for commands on the 'stdin'.  The
      default mode is to create a socket and listen for commands there.
      This is only used for testing.
 
 '--daemon'
      Run in background daemon mode and listen for commands on a socket.
      This is the way 'dirmngr' is started on demand by the other GnuPG
      components.  To force starting 'dirmngr' it is in general best to
      use 'gpgconf --launch dirmngr'.
 
 '--supervised'
      Run in the foreground, sending logs to stderr, and listening on
      file descriptor 3, which must already be bound to a listening
      socket.  This is useful when running under systemd or other similar
      process supervision schemes.  This option is not supported on
      Windows.
 
 '--list-crls'
      List the contents of the CRL cache on 'stdout'.  This is probably
      only useful for debugging purposes.
 
 '--load-crl FILE'
      This command requires a filename as additional argument, and it
      will make Dirmngr try to import the CRL in FILE into it's cache.
      Note, that this is only possible if Dirmngr is able to retrieve the
      CA's certificate directly by its own means.  In general it is
      better to use 'gpgsm''s '--call-dirmngr loadcrl filename' command
      so that 'gpgsm' can help dirmngr.
 
 '--fetch-crl URL'
      This command requires an URL as additional argument, and it will
      make dirmngr try to retrieve and import the CRL from that URL into
      it's cache.  This is mainly useful for debugging purposes.  The
      'dirmngr-client' provides the same feature for a running dirmngr.
 
 '--shutdown'
      This commands shuts down an running instance of Dirmngr.  This
      command has currently no effect.
 
 '--flush'
      This command removes all CRLs from Dirmngr's cache.  Client
      requests will thus trigger reading of fresh CRLs.