Re: [nssldap] Re: getent passwd problems
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Re: [nssldap] Re: getent passwd problems
- From: charlie derr <cderr [at] simons-rock.edu>
- To: nssldap [at] padl.com
- Cc: stephen mulcahy <stephen.mulcahy [at] deri.org>
- Subject: Re: [nssldap] Re: getent passwd problems
- Date: Tue, 10 Feb 2009 15:22:04 -0500
stephen mulcahy wrote:
Hi,
Some updates on this.
1. I found that you can put the following in /etc/libnss-ldap.conf to
get some debug out
debug 1
(where from 1-10 for increasing detail).
2. I also noticed that the LDAP database does not contain uidNumber or
gidNumber values for entries - is it possible this is what is causing
"getent passwd" to fail?
Yeah, I think that's definitely going to be a show stopper.
If so, is there any way to work around this
(i.e. get libnss-ldap to auto-generate uidNumbers on the fly?)
I'm certainly no expert, but if you don't have those values in LDAP (or even if
they're populated, but not visible to
cn=aproxy,ou=Service Accounts,ou=BBB Users,dc=ie,dc=bbb,dc=ccc ) then I think you're not going to succeed. I'm curious about how
you could have managed to populate these entries in your directory (because for objectClass: posixAccount they're both required
attributes). Did you turn off schema checking in your OpenLDAP? (I think you must have because if you hadn't, you wouldn't have
been able to add them without valid integers being set for both uidNumber and gidNumber ). If so, I imagine that you'll need to
reload your entries with the correct values all populated.
good luck,
~c
thanks,
-stephen
stephen mulcahy wrote:
Hi,
I'm trying to configure both an Ubuntu 8.10 system and a Debian Etch
4.0 system to authenticate against an openldap server. I've done this
in the past against other openldap servers without problems but have
failed to get nss-ldap so far with this configuration. I suspect I'm
missing something in the LDAP search parameters but I'm having trouble
debugging this. Are there additional options I can give to nss-ldap to
see what query it is sending to the openldap server? I've tried
wireshark but since I'm using SSL it doesn't give me anything useful.
An ldapsearch against the openldap server gives me the following,
ldapsearch -xLLL -H ldaps://aaa.bbb.ie/ -b "ou=BBB
Users,dc=ie,dc=bbb,dc=ccc" -D "cn=aproxy,ou=Service Accounts,ou=BBB
Users,dc=ie,dc=bbb,dc=local" -wSecret
"(&(objectClass=posixAccount)(uid=*))"
Returns an answer of the following format,
dn: cn=Stephen Mulcahy,ou=Researchers,ou=Users,ou=BBB
Users,dc=ie,dc=bbb,dc=
ccc
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: posixAccount
cn: Stephen Mulcahy
sn: Mulcahy
givenName: Stephen
shadowLastChange: 128763417020503940
uid: xxxxxx
mail: xxxxxxxx@bbbb.org
So it seems to have valid data.
If I install libnss-ldap and edit /etc/nsswitch.conf as follows
passwd: files ldap
and edit /etc/libnss-ldap.conf as follows
base ou=BBB Users,dc=ie,dc=bbb,dc=ccc
uri ldaps://aaa.bbb.ie/
ldap_version 3
binddn cn=aproxy,ou=Service Accounts,ou=BBB Users,dc=ie,dc=bbb,dc=ccc
bindpw Secret
scope sub
pam_filter objectclass=posixAccount
pam_login_attribute uid
nss_schema rfc2307bis
nss_base_passwd ou=Users,ou=BBB Users,dc=ie,dc=bbb,dc=ccc
tls_checkpeer no
ssl on
and then try running getent passwd, I still only get my local user
list, not the additional entries from LDAP. There are no error
messages logged in /var/log/auth.log, /var/log/messages or
/var/log/syslog
Any tips on how to proceed appreciated.
Thanks,
-stephen