Dear Steve Zeng, I want to migrate nis+samba accounts into LDAP. So if you have any procedure how to do it. 1:- Clients(Linux/Windows) is getting auth from Nis server. 2:- For windows we have smbpasswd file 3:- Ldap has own backend database. Thanks -- Sanjay Tripathi Sr. Network Administrator Aspen Communications Pvt. Ltd. #803, Tower B, Millenium Plaza Gurgaon - 122002, Haryana Tel: (91) 124-5049432 Fax: (91) 124-5049433??? Mobile-+91-9810789561