The following configuration will work after boot and while LIDS_GLOBAL is on because it gives slapd the CAP_NET_BIND_SERVICE capability.
/sbin/lidsconf -A -s /usr/local/libexec/slapd \ -o /usr/local/ldapdb -j WRITE /sbin/lidsconf -A -s /usr/local/libexec/slapd \ -o CAP_NET_BIND_SERVICE -j GRANT /sbin/lidsconf -A -s /usr/local/libexec/slapd \ -o CAP_INIT_KILL -j GRANT /sbin/lidsconf -A -s /usr/local/libexec/slapd \ -o CAP_SYS_MODULE -j GRANT |