problems binding to openldap

["Svancara, Randall" <rsvancara@wsu.edu>]

Title: problems binding to openldap

I just set up OpenLDAP authentication on ubuntu linux.  Linux authenticates against the LDAP database just fine. 

The only thing that seems odd is trying to bind to the ldap server using the following search

ldapsearch -x -h localhost -b "dc=private,dc=biz" -D "uid=someuser,ou=people,dc=private,dc=biz" -w xxxxxx uid=anotheruser

ldap_bind: Invalid credentials (49)


But if I try the search using the cn, instead of uid, i can bind just fine:

ldapsearch -x -h localhost -b "dc=private,dc=biz" -D "cn=Some User,ou=people,dc=private,dc=biz" -w  xxxxxx uid=anotheruser
# extended LDIF
#
# LDAPv3
# base <dc=private,dc=biz> with scope subtree
# filter: uid=Beth
# requesting: ALL

......

I am trying to figure out why I can not bind using uid?  Any ideas?

I can provide more information if needed. 

Thanks,

Randall