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DIRMNGR-CLIENT(1)	     GNU Privacy Guard 2.4	     DIRMNGR-CLIENT(1)

NAME
       dirmngr-client -	Tool to	access the Dirmngr services

SYNOPSIS
       dirmngr-client [options]	[certfile|pattern]

DESCRIPTION
       The  dirmngr-client  is	a simple tool to contact a running dirmngr and
       test whether a certificate has been revoked -- either by	 being	listed
       in  the corresponding CRL or by running the OCSP	protocol.  If no dirm-
       ngr is running, a new instances will be started but this	is in  general
       not a good idea due to the huge performance overhead.

       The usual way to	run this tool is either:

	 dirmngr-client	acert

       or

	 dirmngr-client	<acert

       Where  acert  is	 one  DER  encoded  (binary)  X.509 certificates to be
       tested.

RETURN VALUE
       dirmngr-client returns these values:

       0      The certificate under question is	valid; i.e. there is  a	 valid
	      CRL available and	it is not listed there or the OCSP request re-
	      turned that that certificate is valid.

       1      The certificate has been revoked

       2 (and other values)
	      There  was  a  problem checking the revocation state of the cer-
	      tificate.	 A message to stderr has given more detailed  informa-
	      tion.   Most  likely  this is due	to a missing or	expired	CRL or
	      due to a network problem.

OPTIONS
       dirmngr-client may be called with the following options:

       --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.

       --quiet,	-q
	      Make the output extra brief  by  suppressing  any	 informational
	      messages.

       -v

       --verbose
	      Outputs  additional information while running.  You can increase
	      the verbosity by giving several  verbose	commands  to  dirmngr,
	      such as `-vv'.

       --pem  Assume that the given certificate	is in PEM (armored) format.

       --ocsp Do the check using the OCSP protocol and ignore any CRLs.

       --force-default-responder
	      When  checking using the OCSP protocol, force the	use of the de-
	      fault OCSP responder.  That is not to use	the Reponder as	 given
	      by the certificate.

       --ping Check whether the	dirmngr	daemon is up and running.

       --cache-cert
	      Put  the	given certificate into the cache of a running dirmngr.
	      This is mainly useful for	debugging.

       --validate
	      Validate the given certificate using dirmngr's internal  valida-
	      tion code.  This is mainly useful	for debugging.

       --load-crl
	      This  command  expects  a	list of	filenames with DER encoded CRL
	      files.  With the option --url URLs  are  expected	 in  place  of
	      filenames	 and they are loaded directly from the given location.
	      All CRLs will be validated and then loaded into dirmngr's	cache.

       --lookup
	      Take the remaining arguments and run a lookup command on each of
	      them.  The results are Base-64 encoded outputs  (without	header
	      lines).	This  may  be  used  to	 retrieve  certificates	from a
	      server. However the output format	is not	very  well  suited  if
	      more than	one certificate	is returned.

       --url
       -u     Modify the lookup	and load-crl commands to take an URL.

       --local
       -l     Let the lookup command only search the local cache.

       --squid-mode
	      Run  dirmngr-client  in  a mode suitable as a helper program for
	      Squid's external_acl_type	option.

SEE ALSO
       dirmngr(8), gpgsm(1)

       The full	documentation for this tool is maintained as a Texinfo manual.
       If GnuPG	and the	info program are properly installed at your site,  the
       command

	 info gnupg

       should  give  you access	to the complete	manual including a menu	struc-
       ture and	an index.

GnuPG 2.4.7			  2025-04-12		     DIRMNGR-CLIENT(1)

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