Full_Name: Michael Ströder Version: RE24 OS: Linux URL: Submission from: (NULL) (84.163.124.107) When including nadf.schema slapd does not start and prints error message: /opt/openldap-RE24/etc/openldap/schema/nadf.schema: line 111 objectclass: AttributeType not found: "lastModifiedTime" /etc/openldap/slapd.conf: line 17: <include> handler exited with 1! Analyzing this I found this commented declaration in cosine.schema: ## Deprecated in favor of modifyTimeStamp #attributetype ( 0.9.2342.19200300.100.1.23 NAME 'lastModifiedTime' # DESC 'RFC1274: time of last modify, replaced by modifyTimestamp' # OBSOLETE # SYNTAX 1.3.6.1.4.1.1466.115.121.1.53 # USAGE directoryOperation ) So it seems nadf.schema is not usable at the moment.