I notice that the ldap.conf file is not used with commands ldapsearch, ldapwhoami (ldap tools). An environment variable (LDAPCONF) was set and pointing to the file (/etc/openldap/ldap.conf) but it doesn't work. On the other hand, using the information provided in an ldaprc file works. How to ensure the LDAP.conf file is taken into account because I need it for a mutual authentication connection with the use of LDAPS for SASL EXTERNAL. I'm using an openldap 2.6.6 version on CentOS.