I need to remove every configuration/schema/database.

Is it possible and if so how?

So far
Code:
sudo apt-get purge slapd ldap-utils
remove
Code:
/etc/ldap

/etc/openldap

/var/lib/ldap
and
Code:
sudo apt-get install slapd ldap-utils
tried to
Code:
sudo ldapadd -Y EXTERNAL -H ldapi:/// -f backend2.example.com.ldif
still getting 80 error, which means, according to my restricted knowledge, ldap already has modules and cn s in ldif file.