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Date:      Sun, 9 Feb 2014 06:26:53 GMT
From:      Dan Burkland <dburklan@me.com>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   ports/186575: Start of Samba results in "nss_ldap: could not search LDAP server" errors
Message-ID:  <201402090626.s196Qrdu039893@cgiserv.freebsd.org>
Resent-Message-ID: <201402090630.s196U0gA098218@freefall.freebsd.org>

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>Number:         186575
>Category:       ports
>Synopsis:       Start of Samba results in "nss_ldap: could not search LDAP server" errors
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 09 06:30:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     Dan Burkland
>Release:        10.0 P0 RELEASE
>Organization:
>Environment:
FreeBSD srv06 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014     root@snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
I have recently upgraded my FreeBSD file server from 9.1 to 10.0 and have run into an interesting issue. I have configured this system via "/etc/nsswitch" to utilize my OpenLDAP server for "passwdb" & "group" NSS lookups. The system is configured to talk to the OpenLDAP over TLS and basic things like "getent passwd" & "getent group" work fine and do not result in any errors on the LDAP or FreeBSD servers. When I start Samba however (regardless if it is 3.6, 4.0, or 4.1) I notice the following error messages appear in my OpenLDAP server's logs:

Feb  9 00:10:09 srv01 slapd[51720]: conn=2054 fd=43 ACCEPT from IP=10.0.0.15:30785 (IP=0.0.0.0:389)
Feb  9 00:10:09 srv01 slapd[51720]: conn=2054 op=0 EXT oid=1.3.6.1.4.1.1466.20037
Feb  9 00:10:09 srv01 slapd[51720]: conn=2054 op=0 STARTTLS
Feb  9 00:10:09 srv01 slapd[51720]: conn=2054 op=0 RESULT oid= err=0 text=
Feb  9 00:10:09 srv01 slapd[51720]: conn=2054 fd=43 closed (TLS negotiation failure)

If I try to connect to the Samba server from a client or run a samba-related command such as "smbpasswd -a <username>" they hang until I kill them. At that point I notice the following error message appear in "/var/log/messages" on the FreeBSD file server:

Feb  9 00:11:56 srv06 smbd[97896]: nss_ldap: could not search LDAP server - Server is unavailable

This configuration worked just fine in FreeBSD 9.1 so I'm not sure what changed in 10 to prevent this from working properly. As demonstrated previously TLS + LDAP is working properly as confirmed by the "getent passwd" command and OpenLDAP server logs (which indicate a clean TLS connection).

Please see the following tar file which should contain all of the necessary files:

https://www.dropbox.com/s/2eclhl1k5l2jaxr/FreeBSD_Samba_Problem_Report_Files_20140209.tar.gz

If you need any further information from me please shoot me an email.

Thanks!

Dan
>How-To-Repeat:
* Start/stop the "samba_server" service

Or

* Try to connect to the Samba fileshare from a client server


>Fix:
If I replace the following lines:

group: files ldap
passwd: files ldap

With

group: files
passwd: files

Samba then operates correctly and related commands such as "pdbedit -L -u <username>" work just fine. 

>Release-Note:
>Audit-Trail:
>Unformatted:



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