[Samba] More info about "winbind and domain member authentication problems"

Dani Gutiérrez jdanitxu at gmail.com
Wed Jan 17 13:45:52 GMT 2007

Hi again, trying more tests, I give some more info:
In MEMBER machine, when I run winbind in a terminal window (WINDOW1) not
daemonized, that is,
    winbindd -FSi
and call wbinfo -a in another terminal window (WINDOW2), in WINDOW1 I see
two lines with this error:
  prs_mem_get: reading data of size 8650916 would overrun buffer by 8650420

Also, trying to capture the network packets out from MEMBER, there is no

---------- Forwarded message ----------
Subject: winbind and domain member authentication problems
To: samba at lists.samba.org

I'm having this authentication problem from a samba domain member; let's
call this machine MEMBER. From MEMBER, if I do:
  wbinfo -a usr%pwd
I receive:
  error code was NT_STATUS_NO_SUCH_USER (0xc0000064)
  error messsage was: No such user
  Could not authenticate user smediavilla%musica with plaintext password
  challenge/response password authentication failed
  error code was NT_STATUS_NO_LOGON_SERVERS (0xc000005e)
  error messsage was: No logon servers
  Could not authenticate user smediavilla with challenge/response
But I'm able to do wbinfo -u, wbinfo -g, getent passwd, and getent group

Apart from that, if I do from the PDC
  smbclient -d 3 -W mydomain -U domainuser //MEMBER/shared_resource
I get:
  Doing spnego session setup (blob length=58)
  got OID=1 3 6 1 4 1 311 2 2 10
  got principal=NONE
  Got challenge flags:
  Got NTLMSSP neg_flags=0x60890235
  NTLMSSP: Set final flags:
  Got NTLMSSP neg_flags=0x60080215
  NTLMSSP Sign/Seal - Initialising with flags:
  Got NTLMSSP neg_flags=0x60080215
  SPNEGO login failed: No logon servers
  session setup failed: NT_STATUS_NO_LOGON_SERVERS

Both of them seem related problems. My samba versions are:
* In PDC: 3.0.23c-4
* In MEMBER: 3.0.22-1ubuntu4

Even though I've seen similar problems in this and in other lists, I cannot
find a good answer.

     Thanks a lot in advance

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