I am trying to get LDAP working on my mail server for both user authentication and addressbook purposes. I have tried the tutorials on both http://www.server-world.info/en/note?os=CentOS_7&p=openldap&f=1 and http://albanianwizard.org/ubuntu-10-0-4-lucid-lynx-ldap-configuration-the-working-how-to.albanianwizard (The second one is for Ubuntu, but claimed to be a complete and working demo) However, when I try to last part of each of these tutorials I get the following. ldapadd -x -D cn=admin,dc=ringways,dc=com -W -f /tmp/dit.ldif Enter LDAP Password: ldap_bind: Invalid credentials (49) Note: in the server-world one I tried using "dc=ringways,dc=com" as well as leaving it as "dc=server,dc=world" but it didn't seem to make any difference. After each attempt I reset everything using the following script. [root at ollie2 ~]# cat reset_ldap.sh #!/bin/bash -x systemctl stop slapd rpm -e openldap-servers openldap-clients cd /var/lib rm -Rf ldap cd /etc/openldap/ rm -Rf slapd.d/ yum -y install openldap-servers openldap-clients cp /usr/share/openldap-servers/DB_CONFIG.example /var/lib/ldap/DB_CONFIG systemctl start slapd slaptest -F /etc/openldap/slapd.d [root at ollie2 ~]# Do I need to do anything else, as it would appear that there is something I'm missing.