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Ldap authentication issue with PAM

To: openldap-technical@openldap.org
Subject: Ldap authentication issue with PAM
From: Indexer <indexer@internode.on.net>
Date: Mon, 3 May 2010 17:21:54 +0930
I am currently trying to make a ldap server which i can use to authenticate users. Sadly a large number of how to's are incomplete and don't work, so after reading alot of how to's and manuals I have got 99.9% of the way. On attempting to authenticate a user it denies the user access with a error from auth.log

May  4 02:21:08 nemo sshd[1271]: error: PAM: authentication error for william from 172.20.0.1

I can succesfully search the ldap with this user binding to the ldap

ldapsearch -x -D "uid=william,ou=Admin,dc=chocolate,dc=lan" -W '(uid=william)'
Enter LDAP Password: 
# extended LDIF
#
# LDAPv3
# base <dc=chocolate,dc=lan> (default) with scope subtree
# filter: (uid=william)
# requesting: ALL
#

# william, Admin, chocolate.lan
dn: uid=william,ou=Admin,dc=chocolate,dc=lan
uid: william
cn: william
objectClass: account
objectClass: posixAccount
objectClass: shadowAccount
objectClass: top
loginShell: /bin/bash
uidNumber: 10000
gidNumber: 10000
homeDirectory: /home/william
userPassword:: e1NTSEF9Z3BQd05Lc3JUMWwxSVNhOVQvN1dPb3ZOcnVBSXJwVTE=
gecos: William Brown,,,,
description: William Brown
shadowLastChange: 1
shadowMax: 0
shadowExpire: 0

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

Slapd when trying to authenticate shows this.

/usr/local/libexec/slapd -4 -d 256

slapd starting
conn=0 fd=10 ACCEPT from IP=127.0.0.1:28629 (IP=0.0.0.0:389)
conn=0 op=0 BIND dn="" method=128
conn=0 op=0 RESULT tag=97 err=0 text=
connection_input: conn=0 deferring operation: binding
conn=0 op=1 SRCH base="ou=Nemo,ou=Group,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixGroup))"
conn=0 op=1 SRCH attr=cn userPassword memberUid uniqueMember gidNumber
conn=0 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=0 op=2 SRCH base="ou=Marvin,ou=Group,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixGroup))"
conn=0 op=2 SRCH attr=cn userPassword memberUid uniqueMember gidNumber
conn=0 op=2 SEARCH RESULT tag=101 err=0 nentries=0 text=
conn=0 fd=10 closed (connection lost)
conn=1 fd=10 ACCEPT from IP=127.0.0.1:43475 (IP=0.0.0.0:389)
conn=1 op=0 BIND dn="" method=128
conn=1 op=0 RESULT tag=97 err=0 text=
connection_input: conn=1 deferring operation: binding
conn=1 op=1 SRCH base="ou=Admin,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixAccount)(uid=william))"
conn=1 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass shadowLastChange shadowMax shadowExpire
<= bdb_equality_candidates: (uid) not indexed
conn=1 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=2 fd=12 ACCEPT from IP=127.0.0.1:15318 (IP=0.0.0.0:389)
conn=2 op=0 BIND dn="" method=128
conn=2 op=0 RESULT tag=97 err=0 text=
connection_input: conn=2 deferring operation: binding
conn=2 op=1 SRCH base="ou=Admin,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixAccount)(uid=william))"
conn=2 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass shadowLastChange shadowMax shadowExpire
<= bdb_equality_candidates: (uid) not indexed
conn=2 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=2 op=2 SRCH base="ou=Admin,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixAccount)(uid=william))"
conn=2 op=2 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass shadowLastChange shadowMax shadowExpire
<= bdb_equality_candidates: (uid) not indexed
conn=2 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=2 fd=12 closed (connection lost)
conn=3 fd=12 ACCEPT from IP=127.0.0.1:63485 (IP=0.0.0.0:389)
conn=3 op=0 BIND dn="" method=128
conn=3 op=0 RESULT tag=97 err=0 text=
connection_input: conn=3 deferring operation: binding
conn=3 op=1 SRCH base="ou=Admin,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixAccount)(uid=william))"
conn=3 op=1 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass shadowLastChange shadowMax shadowExpire
<= bdb_equality_candidates: (uid) not indexed
conn=3 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=3 op=2 SRCH base="ou=Admin,dc=chocolate,dc=lan" scope=1 deref=0 filter="(&(objectClass=posixAccount)(uid=william))"
conn=3 op=2 SRCH attr=uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass shadowLastChange shadowMax shadowExpire
<= bdb_equality_candidates: (uid) not indexed
conn=3 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text=
conn=3 fd=12 closed (connection lost)
conn=1 fd=10 closed (connection lost)


Here is my /etc/ldap.conf
base dc=chocolate,dc=lan
suffix dc=chocolate,dc=lan
uri ldap://ldap.srv.chocolate.lan
ldap_version 3
rootbinddn cn=Manager,dc=chocolate,dc=lan
scope one
timelimit 3
bind_timelimit 3
bind_policy soft
pam_filter objectclass=posixAccount
pam_login_attribute uid
pam_check_host_attr no
pam_member_attribute memberuid
pam_password exop
nss_reconnect_tries 4                   # number of times to double the sleep time
nss_reconnect_sleeptime 1               # initial sleep value
nss_reconnect_maxsleeptime 16   # max sleep value to cap at
nss_reconnect_maxconntries 2    # how many tries before sleeping
nss_base_passwd         ou=Admin,dc=chocolate,dc=lan?one
nss_base_passwd         ou=People,dc=chocolate,dc=lan?one
nss_base_shadow         ou=Admin,dc=chocolate,dc=lan?one
nss_base_shadow         ou=People,dc=chocolate,dc=lan?one
nss_base_group          ou=Nemo,ou=Group,dc=chocolate,dc=lan?one
nss_base_group          ou=Marvin,ou=Group,dc=chocolate,dc=lan?one
ssl off

Here is /etc/openldap/slapd.conf

include         /usr/local/etc/openldap/schema/core.schema
include         /usr/local/etc/openldap/schema/cosine.schema
include          /usr/local/etc/openldap/schema/inetorgperson.schema
include          /usr/local/etc/openldap/schema/nis.schema
pidfile         /var/run/openldap/slapd.pid
argsfile        /var/run/openldap/slapd.args
modulepath      /usr/local/libexec/openldap
moduleload      back_bdb
access to attrs=userPassword
       by dn="uid=william,ou=Admin,dc=chocolate,dc=lan" write
       by anonymous auth
       by self write
       by * none
access to *
       by self write
       by users read
database        bdb
suffix          "dc=chocolate,dc=lan"
rootdn          "cn=Manager,dc=chocolate,dc=lan"
rootpw          {SSHA}pG0QHakwiNmJHXcyTB5H4RQtoDAGbEsm
directory       /var/db/openldap-data
index   objectClass     eq 
index   uid     eq
password-hash {SSHA}

Here is the /etc/openldap/ldap.conf from both the client and server

BASE    dc=chocolate,dc=lan
URI     ldap://ldap.srv.chocolate.lan

Any help with this would be greatly appreciated

William
Follow-Ups:
- RE: Ldap authentication issue with PAM
  - From: Siddhartha Jain <sjain@silverspringnet.com>
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