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The dirmngr-client is a simple tool to contact a running dirmngr and test whether a certificate has been revoked --- either by being listed in the corresponding CRL or by running the OCSP protocol.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 dirmngr 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The certificate has been revoked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 certificate.
A message to stderr has given more detailed information. 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 protocl, 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 validation 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.