dn: cn=tiangexuanadd,ou=users,dc=xxx,dc=xxx
cn: tiangexuanadd
createtimestamp: 20121127080342Z
creatorsname: cn=manager,dc=xxx,dc=xxx
entrycsn: 20121127082433.542652Z#000000#000#000000
entrydn: cn=tiangexuanadd,ou=users,dc=xxx,dc=xxx
entryuuid: b48c76ae-ccb4-1031-8745-b3f3f9fa7bb0
gidnumber: 93003
hassubordinates: FALSE
homedirectory: /home/tiangexuanadd
loginshell: /bin/bash
modifiersname: cn=manager,dc=tmsr,dc=org
modifytimestamp: 20121127082433Z
objectclass: posixAccount
objectclass: shadowAccount
objectclass: inetOrgPerson
sn: zouyang
structuralobjectclass: inetOrgPerson
subschemasubentry: cn=Subschema
uid: tiangexuanadd
uidnumber: 30962
userpassword: 123
after that, i use slapadd command to add this person. will get the wrong message. so i think the attribute createtimestamp can not be added, it should be created by ldap server or system,not in the file.