Dirmngr is a server for managing and downloading certificate revocation lists (CRLs) for X.509 certificates and for downloading the certificates themselves. Dirmngr also handles OCSP requests as an alternative to CRLs. Dirmngr is either invoked internally by gpgsm or when running as a system daemon through the dirmngr-client tool.
If dirmngr is started in system daemon mode, it uses a directory layout as common for system daemons and does not make use of the default ~/.gnupg directory.
See Option Index,for an index to DIRMNGR's commands and options.