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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       test whether a certificate has been revoked --- either by being  listed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
              returned 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       1      The certificate has been revoked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
              default  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 2.2.20                      2020-03-18                 DIRMNGR-CLIENT(1)