To allow access to the Tasks backend, set up a global access control instruction
(ACI) using dsconfig that allows access to members of an
Administrators group.
$ dsconfig set-access-control-handler-prop \
--add 'global-aci:(target="ldap:///cn=tasks")(targetattr="*||+")
(version 3.0; acl "Access to the tasks backend for administrators";
allow (all) groupdn="ldap:///
cn=admins,ou=groups,dc=example,dc=com";)'