[root@zabbix1 ~]# cat disable_anon.ldif dn: cn=config changetype: modify add: olcDisallows olcDisallows: bind_anon dn: cn=config changetype: modify add: olcRequires olcRequires: authc dn: olcDatabase={-1}frontend,cn=config changetype: modify add: olcRequires olcRequires: authc [root@zabbix1 ~]# ldapadd -Y EXTERNAL -H ldapi:/// -f /root/disable_anon.ldif