I am trying to configure NIS, PAM, & LDAP on a CentOS 6.2 host. I've
previously installed a similar configuration on RHEL4, but CentOS now
uses nss-pam-ldapd and nslcd instead of nss_ldap, so the configurations
are a little different.
Currently, local users and groups are showing up but not LDAP users.
When I do a /getent passwd/ and/getent group/ I don't get LDAP users.
When I do a listing of a share directory that should have user and group
ownership determined by LDAP, I get the uidNumbers and gidNumbers rather
than the UIDs and GIDs.
[root@edgar2 openldap]# ls -l /data/home | tail
drwx------. 2 30634 30080 4096 Mar 18 2009 userdir1
drwx------. 33 30548 30075 4096 Jan 29 15:20 userdir2
drwx------. 3 30554 30075 4096 Jan 26 2009 userdir3
drwx------. 12 30467 30075 4096 Jun 21 2012 userdir4
drwx------. 4 30543 30075 4096 Oct 21 2008 userdir5
drwx------. 8 30555 30075 4096 Oct 31 10:36 userdir5
Other details: centos 6.2, smbldap-tools 0.9.6, openldap 2.4.23
I've fussed with /etc/nsswitch.conf, /etc/pam_ldap.conf,
/etc/nslcd.conf, /etc/pam.d/system-auth, and /etc/sysconfig/authconfig.
And selinux is off.
I know the machine is successfully connecting to LDAP. An ldapsearch
works from this machine, and I can even connect to a samba share with an
ldap login through smbclient.
Relevant parts of /etc/nsswitch:
passwd: files ldap
shadow: files ldap
group: files ldap
#hosts: db files nisplus nis dns
hosts: files dns
bootparams: nisplus [NOTFOUND=return] files
ethers: files
netmasks: files
networks: files
protocols: files ldap
rpc: files
services: files ldap
netgroup: nisplus ldap
#netgroup: ldap
publickey: nisplus
automount: files nisplus ldap
#automount: files ldap
aliases: files nisplus
Relevant parts of /etc/pam_ldap.conf (everything else is commented out):
host dir1.ourdomain.com
base dc=.ourdomain,dc=com
#uri ldaps://dir1.ourdomain.com
uri ldap://dir1.ourdomain.com
# basic auth config
binddn cn=admin,dc=ourdomain,dc=com
rootbinddn cn=admin,dc=ourdomain,dc=com
# random stuff
#timelimit 120
#bind_timelimit 120
#bind_policy hard
# brought these times down wmodes Aug 11, 2008
timelimit 30
bind_timelimit 30
bind_policy soft
idle_timelimit 3600
nss_initgroups_ignoreusers root,ldap
# pam config
#pam_password md5
pam_password md5
# config for nss
nss_base_passwd ou=people,dc=ourdomain,dc=com?one
nss_base_shadow ou=people,dc=ourdomain,dc=com?one
nss_base_group ou=group,dc=ourdomain,dc=com?one
# OpenLDAP SSL mechanism
# start_tls mechanism uses the normal LDAP port, LDAPS typically 636
ssl no
# OpenLDAP SSL options
# Require and verify server certificate (yes/no)
#tls_checkpeer yes
# CA certificates for server certificate verification
tls_cacertfile /etc/openldap/cacerts/cacert.pem
tls_cacertdir /etc/openldap/cacerts
# Client certificate and key
tls_cert /etc/openldap/cacerts/servercert.pem
tls_key /etc/openldap/cacerts/serverkey.pem
Relevant parts of /etc/pam.d/system-auth:
auth required pam_env.so
auth sufficient pam_fprintd.so
auth sufficient pam_unix.so nullok try_first_pass
auth requisite pam_succeed_if.so uid >= 500 quiet
auth sufficient pam_ldap.so use_first_pass
auth required pam_deny.so
account required pam_unix.so
account sufficient pam_localuser.so
account sufficient pam_succeed_if.so uid < 500 quiet
account [default=bad success=ok user_unknown=ignore] pam_ldap.so
account required pam_permit.so
password requisite pam_cracklib.so try_first_pass retry=3 type=
password sufficient pam_unix.so sha512 shadow nullok
try_first_pass use_authtok
password sufficient pam_ldap.so use_authtok
password required pam_deny.so
session optional pam_keyinit.so revoke
session required pam_limits.so
session [success=1 default=ignore] pam_succeed_if.so service in
crond quiet use_uid
session required pam_unix.so
session optional pam_ldap.so
session optional pam_mkhomedir.so skel=/etc/skel umask=077
And the only line in /etc/sysconfig/authconfig I changed was:
USELDAP=yes
Any thoughts? For those who are experienced with nis and pam, I'm sure
this is a no brainer, but I could sure use the little bit of your brain
that knows how to fix this.
Wes
--
Wes Modes
Systems Designer, Developer, and Administrator
University Library ITS
University of California, Santa Cruz
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