Hi guys, I have google a lot to modify cn=config but all failed. Hope someone can help. Thanks. [openldap2.6.1 CentOS7.9] My initial ldif is like below: `[root@rayc01 openldap]# more slapd.ldif |grep -v ^# dn: cn=config objectClass: olcGlobal cn: config olcArgsFile: /usr/local/openldap-2.6.1/var/run/slapd.args olcPidFile: /usr/local/openldap-2.6.1/var/run/slapd.pid

dn: cn=module,cn=config objectClass: olcModuleList cn: module olcModulepath: /usr/local/openldap-2.6.1/libexec/openldap olcModuleload: back_mdb.la

dn: cn=schema,cn=config objectClass: olcSchemaConfig cn: schema

include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/core.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/collective.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/corba.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/cosine.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/dsee.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/duaconf.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/dyngroup.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/inetorgperson.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/java.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/misc.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/namedobject.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/nis.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/openldap.ldif include: file:///usr/local/openldap-2.6.1/etc/openldap/schema/pmi.ldif

dn: olcDatabase=frontend,cn=config objectClass: olcDatabaseConfig objectClass: olcFrontendConfig olcDatabase: frontend

dn: olcDatabase=mdb,cn=config objectClass: olcDatabaseConfig objectClass: olcMdbConfig olcDatabase: mdb olcDbMaxSize: 1073741824 olcSuffix: dc=domain,dc=com olcRootDN: cn=root,dc=domain,dc=com olcRootPW: {SSHA}N/Zg9jqjoL1E4xEHc1dGdyTzZiOlEsrs olcDbDirectory: /usr/local/openldap-2.6.1/var/openldap-data olcDbIndex: objectClass eq

dn: olcDatabase=monitor,cn=config objectClass: olcDatabaseConfig olcDatabase: monitor olcRootDN: cn=config olcMonitoring: FALSE [root@rayc01 openldap]# ` After import by slapadd and after slapd start, i can add my ou with cn=root by ldapadd. like below: `[root@rayc01 ~]# more base.ldif dn: dc=domain,dc=com dc: domain objectClass: top objectClass: domain

dn: ou=People,dc=domain,dc=com objectClass: organizationalUnit ou: People

dn: ou=Group,dc=domain,dc=com objectClass: organizationalUnit ou: Group

dn: ou=Mounts,dc=domain,dc=com objectClass: organizationalUnit ou: Mounts`

But when I try to modify olcLogLevel and olcIdleTimeout in cn=config, I get errors:

[root@rayc01 ~]# more log.ldif dn: cn=config changeType: modify replace: olcIdleTimeout olcIdleTimeout: 60

dn: cn=config changeType: modify replace: olcLogLevel olcLogLevel: 256

[root@rayc01 ~]# ldapmodify -Y external -H ldapi:/// -f 1.ldif ldap_sasl_interactive_bind: Can't contact LDAP server (-1) [root@rayc01 ~]# ldapmodify -x -D cn=root,dc=domain,dc=com -w "xxx@123" -f log.ldif modifying entry "cn=config" ldap_modify: Insufficient access (50)

[root@rayc01 ~]# ldapmodify -x -D cn=config -f log.ldif ldap_bind: Server is unwilling to perform (53) additional info: unauthenticated bind (DN with no password) disallowed [root@rayc01 ~]#

[root@rayc01 ~]# more 1.ldif dn: olcDatabase={0}config,cn=config #olcRootDN: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth changetype: modify replace: olcAccess olcAccess: {0}to * by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" read by dn.base="cn=r oot,dc=huawei,dc=com" read by * none

[root@rayc01 ~]# ldapmodify -Y external -H ldapi:/// -f 1.ldif ldap_sasl_interactive_bind: Can't contact LDAP server (-1) [root@rayc01 ~]#