[Samba] Cannot authenticate new ldap users (unless they are in /etc/passwd too)

[TAKAHASHI Motonobu]

From: Sean Boran <sean at boran.com>
Date: Mon, 23 May 2011 23:47:41 +0200

snip)
> Now I've added some new users and none of them can authenticate.
> e.g. for the user "inktec".
> 
> The user can login via SSH, but not mount a share:
> smbclient \\\\server3\\someshare -U=inktec mypassword

(snip)

> May 23 19:40:47 server3 smbd[7364]:   User inktec in passdb, but getpwnam()
> fails!
> May 23 19:40:47 server3 smbd[7364]: [2011/05/23 19:40:47,  0]
> auth/auth_sam.c:355(check_sam_security)
> May 23 19:40:47 server3 smbd[7364]:   check_sam_security:
> make_server_info_sam() failed with 'NT_STATUS_NO_SUCH_USER'

According to these logs, you probably failed at Get_Pwnam_alloc() in
lib/username.c referenced by make_server_info_sam() in
auth/auth_util.c

Adding "-d10" to smbclient, you may see useful messages to analyze
such as:

* Get_Pwnam: empty username!
* Finding user 
* Trying _Get_Pwnam(), username given as
...

---
TAKAHASHI Motonobu <monyo at samba.gr.jp>