Hi , I have added sync_use_subentry in the ldap configuration and it started throwing the core dump while performing the sync from other running server and stops the LDAP process. Here is the error seen the in the debug logs. <= index_entry_add( 114, "ou=New NetIQ StAlbans / Glasgow,ou=ChartReports,ou=services,o=BT" ) success => entry_encode(0x00000072): ou=New NetIQ StAlbans / Glasgow,ou=ChartReports,ou=services,o=BT <= entry_encode(0x00000072): ou=New NetIQ StAlbans / Glasgow,ou=ChartReports,ou=services,o=BT bdb_add: added id=00000072 dn="ou=New NetIQ StAlbans / Glasgow,ou=ChartReports,ou=services,o=BT" send_ldap_result: conn=-1 op=0 p=0 send_ldap_result: err=0 matched="" text="" bdb_modify: cn=ldapsync,o=bt bdb_dn2entry("cn=ldapsync,o=bt") => bdb_dn2id("cn=ldapsync,o=bt") <= bdb_dn2id: get failed: DB_NOTFOUND: No matching key/data pair found (-30988) bdb_modify: dn2entry failed (-30988) send_ldap_result: conn=-1 op=0 p=0 send_ldap_result: err=10 matched="o=BT" text="" ./start_ldap.sh: line 3: 14900 Segmentation Fault (core dumped) /software/openldap2.4.22/libexec/slapd -f /software/openldap2.4.22/etc/openldap/slapd.conf -h ldap://tardis02.nat.bt.com:489/ -d -1 Have attached the slapd.conf file. Could you please suggest? Many Thanks in advance. Rahul Manchanda GS Selfcare Platform Build Team Tel: +91 02066018100 Extn: 6178 SMTP: rahul.manchanda(a)bt.com Office: Sharda Center ,6th Floor Annex Off Karve Road, Erandwana ,Pune-04