dirmngr-client

DIRMNGR-CLIENT(1)            GNU Privacy Guard 2.2           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       test whether a certificate has been revoked --- either by being  listed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       1      The certificate has been revoked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 2.2.19                      2019-11-23                 DIRMNGR-CLIENT(1)