LDAP启动：slaptest: bad configuration file!

报错：config error processing cn={1}core,cn=schema,cn=config: olcAttributeTypes: Duplicate attributeType: "2.5.4.2"

原因：

更新slapd.d配置文件

slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d

命令时出错，新建touch /etc/openldap/slapd.conf，修改后的配置内容如下：

include /etc/openldap/schema/core.schema
include /etc/openldap/schema/cosine.schema
include /etc/openldap/schema/duaconf.schema
include /etc/openldap/schema/dyngroup.schema
include /etc/openldap/schema/inetorgperson.schema
include /etc/openldap/schema/java.schema
include /etc/openldap/schema/misc.schema
include /etc/openldap/schema/nis.schema
include /etc/openldap/schema/openldap.schema
include /etc/openldap/schema/ppolicy.schema
include /etc/openldap/schema/collective.schema
include /etc/openldap/schema/kerberos.schema

pidfile /var/run/openldap/slapd.pid
argsfile /var/run/openldap/slapd.args

注意：记得先备份目录/etc/openldap/slapd.d， /etc/openldap/slapd.conf添加include /etc/openldap/schema/corba.schema存在问题，不导入此*.schema，否则就会报上述错误

$ slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d

$ chown -R ldap:ldap /etc/openldap/slapd.d && chmod -R 700 /etc/openldap/slapd.d

启动 LDAP 服务：

service slapd start

如果启动失败，则运行下面命令来启动 slapd 服务并查看日志：

$ slapd -h ldap://127.0.0.1 -d 481