changing a user's password

[Adam Williams <awilliam@mdah.state.ms.us>]

I'm trying to learn openldap.  I have a user that I want to change their
password on, but I'm getting an error:

[testuser@gomer ~]$ ldappasswd -WS -D
"uid=testuser,ou=People,dc=gomer,dc=mdah,dc=state,dc=ms,dc=us"
New password:
Re-enter new password:
Enter LDAP Password:
SASL/DIGEST-MD5 authentication started
ldap_sasl_interactive_bind_s: Invalid credentials (49)
       additional info: SASL(-13): user not found: no secret in database


But the user does exist:

[root@gomer ~]# ldapsearch -D
'cn=Manager,dc=gomer,dc=mdah,dc=state,dc=ms,dc=us' -b
"uid=testuser,ou=People,dc=gomer,dc=mdah,dc=state,dc=ms,dc=us" -w xxxxxx -x
# extended LDIF
#
# LDAPv3
# base <uid=testuser,ou=People,dc=gomer,dc=mdah,dc=state,dc=ms,dc=us>
with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# testuser, People, gomer.mdah.state.ms.us
dn: uid=testuser,ou=People,dc=gomer,dc=mdah,dc=state,dc=ms,dc=us
uid: testuser
cn: test user
telephoneNumber: 5766888
roomNumber: IS
homePhone: 3738042
givenName: test
sn: user
mail: testuser@dc=mdah,dc=state,dc=ms,dc=us
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: top
objectClass: shadowAccount
shadowLastChange: 13705
shadowMax: 99999
shadowWarning: 7
loginShell: /bin/bash
uidNumber: 501
gidNumber: 101
homeDirectory: /home/testuser
gecos: test user,IS,5766888,3738042
userPassword:: xxxxxxxxxxxxxx

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1