[Samba] troule switching winbind to use a new AD 2008

Thu Nov 11 09:09:50 MST 2010

I have been using 2003 AD servers for winbind for many years, and now
2008 is phasing in, but I can't authenticate using the new servers, and
I'm not sure what to do.  All advice very welcome.

This is a problem for me on both Gentoo (samba 3.0.33) and Debian Lenny
(samba 3.0.24).

For debugging, I ran winbind interactively and piped output to a file
(winbindd -d 3 -i).  

I have also posted the complete files to a pastebin: 
Working AD:     http://pastebin.ca/1988167
Non-working AD: http://pastebin.ca/1988169

I did this for working and non-working ADs, and each time, I exercised
the winbind daemon with the same commands, and then diff'ed the files.

Both AD's behave the same for the following commands:
wbinfo -g
wbinfo -u
net ads info

However, the following commands do not work using the 2008 AD.
kinit john
  kinit(v5): KDC has no support for encryption type while getting initial credentials
wbinfo --all-domains
  <empty>
wbinfo -m
  Could not list trusted domains
wbinfo -t
  checking the trust secret via RPC calls succeeded
wbinfo -a MS+john%'mypasswd'
   plaintext password authentication failed
   error code was NT code 0x00000721 (0x721)
   error messsage was: NT code 0x00000721
   Could not authenticate user MS+john%mypasswd with plaintext password
   challenge/response password authentication failed
   error code was NT_STATUS_PIPE_DISCONNECTED (0xc00000b0)
   error messsage was: Named pipe dicconnected
   Could not authenticate user MS+john with challenge/response

The winbind logs are long, and attaching to this email seems wrong, so I
have a difference summery below.  

---First:---
The working AD shows this:
get_dc_list: preferred server list: "192.168.50.11, 192.168.50.11"
get_dc_list: preferred server list: "192.168.50.11, 192.168.50.11"
Doing spnego session setup (blob length=104)

The non-working AD shows this:
get_dc_list: preferred server list: ", 192.168.50.12"
Connected to LDAP server 192.168.50.12
get_dc_list: preferred server list: ", 192.168.50.12"
Connected to LDAP server 192.168.50.12
get_dc_list: preferred server list: ", 192.168.50.12"
get_dc_list: preferred server list: ", 192.168.50.12"
get_dc_list: preferred server list: ", 192.168.50.12"
get_dc_list: preferred server list: ", 192.168.50.12"
get_dc_list: preferred server list: ", 192.168.50.12"
get_dc_list: preferred server list: ", 192.168.50.12"
Doing spnego session setup (blob length=136)
got OID=1 3 6 1 4 1 311 2 2 30

---Second:---
The working AD shows this:
got principal=ad1$@MS.MYDOMAIN.COM

The non-working AD shows this:
got principal=not_defined_in_RFC4178 at please_ignore
cli_session_setup_spnego: got a bad server principal, trying to
guess ...
cli_session_setup_spnego: guessed server principal=AD4$@MS.MYDOMAIN.COM

---Third:---
The working AD shows this:
got principal=ad1$@MS.MYDOMAIN.COM
Doing kerberos session setup
ads_cleanup_expired_creds: Ticket in ccache[MEMORY:cliconnect] expiration Thu, 11 Nov 2010 06:53:02 PST
rpc_pipe_bind: Remote machine ad1.ms.mydomain.com pipe \lsarpc fnum 0x4003 bind request returned ok.
rpc_pipe_bind: Remote machine ad1.ms.mydomain.com pipe \lsarpc fnum 0x4002 bind request returned ok.

The non-working AD shows this:
got principal=not_defined_in_RFC4178 at please_ignore
Kinit failed: KDC has no support for encryption type
Doing spnego session setup (blob length=136)
got OID=1 3 6 1 4 1 311 2 2 30
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=not_defined_in_RFC4178 at please_ignore
Got challenge flags:
Got NTLMSSP neg_flags=0x62898215
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x60088215
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x60088215
rpc_pipe_bind: Remote machine AD4.ms.mydomain.com pipe \lsarpc fnum 0x800d bind request returned ok.
rpc_pipe_bind: Remote machine AD4.ms.mydomain.com pipe \lsarpc fnum 0x800e bind request returned ok.

---Fourth:---
The working AD shows this:
[ 4325]: pam auth MS+john
[ 4318]: dual pam auth MS+john
[ 4325]: request misc info
[ 4325]: pam auth crap domain: [MS] user: john
[ 4318]: pam auth crap domain: MS user: john
[ 4327]: request interface version
[ 4327]: request location of privileged pipe
[ 4327]: check machine account
[ 4318]: check machine account
get_dc_list: preferred server list: "192.168.50.11, 192.168.50.11"
get_dc_list: preferred server list: "192.168.50.11, 192.168.50.11"
Doing spnego session setup (blob length=104)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=ad1$@MS.MYDOMAIN.COM
Doing kerberos session setup
ads_cleanup_expired_creds: Ticket in ccache[MEMORY:cliconnect] expiration Thu, 11 Nov 2010 16:43:26 PST
rpc_pipe_bind: Remote machine ad1.ms.mydomain.com pipe \NETLOGON fnum 0x800c bind request returned ok.
rpc_pipe_bind: Remote machine ad1.ms.mydomain.com pipe \NETLOGON fnum 0x8008 bind request returned ok.
secret is good
[ 4328]: request interface version
[ 4328]: request location of privileged pipe
[ 4328]: list trusted domains
[ 4318]: list trusted domains
[ 4330]: request interface version
[ 4330]: request location of privileged pipe
[ 4330]: list trusted domains
[ 4318]: list trusted domains
[ 4341]: request interface version
[ 4341]: request location of privileged pipe
[ 4341]: getgroups root
[ 4318]: lookupname MS+root
rpc: name_to_sid name=MS\root
name_to_sid [rpc] MS\root for domain MS
rpc_pipe_bind: Remote machine ad1.ms.mydomain.com pipe \lsarpc fnum 0xc004 bind request returned ok.
Got challenge flags:
Got NTLMSSP neg_flags=0x62898235
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x60088235
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x60088235
lsa_io_sec_qos: length c does not match size 8

The non-working AD shows this:
[ 4503]: pam auth MS+johns
[ 4441]: dual pam auth MS+johns
cli_pipe_validate_current_pdu: RPC fault code DCERPC fault 0x00000721 received from remote machine AD4.ms.mydomain.com pipe \NETLOGON fnum 0x400c!
Plain-text authentication for user MS+johns returned NT code 0x00000721 (PAM: 4)
[ 4503]: request misc info
[ 4503]: pam auth crap domain: [MS] user: johns
[ 4441]: pam auth crap domain: MS user: johns
rpc_api_pipe: Remote machine AD4.ms.msli.com pipe \NETLOGON fnum 0x400creturned critical error. Error was NT_STATUS_PIPE_DISCONNECTED
NTLM CRAP authentication for user [MS]\[johns] returned NT_STATUS_PIPE_DISCONNECTED (PAM: 4)
[ 4505]: request interface version
[ 4505]: request location of privileged pipe
[ 4505]: check machine account
[ 4441]: check machine account
get_dc_list: preferred server list: "192.168.50.12, 192.168.50.12"
get_dc_list: preferred server list: "192.168.50.12, 192.168.50.12"
Doing spnego session setup (blob length=136)
got OID=1 3 6 1 4 1 311 2 2 30
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=not_defined_in_RFC4178 at please_ignore
cli_session_setup_spnego: got a bad server principal, trying to guess ...
cli_session_setup_spnego: guessed server principal=AD4$@MS.MYDOMAIN.COM
Doing kerberos session setup
ads_cleanup_expired_creds: Ticket in ccache[MEMORY:cliconnect] expiration Thu, 11 Nov 2010 16:46:46 PST
rpc_pipe_bind: Remote machine AD4.ms.mydomain.com pipe \NETLOGON fnum 0xc002 bind request returned ok.
rpc_pipe_bind: Remote machine AD4.ms.mydomain.com pipe \NETLOGON fnum 0xc005 bind request returned ok.
secret is good
[ 4506]: request interface version
[ 4506]: request location of privileged pipe
[ 4506]: list trusted domains
[ 4441]: list trusted domains
winbindd_dual_list_trusted_domains: trusted_domains returned NT_STATUS_INVALID_PARAMETER
[ 4508]: request interface version
[ 4508]: request location of privileged pipe
[ 4508]: list trusted domains
[ 4441]: list trusted domains
winbindd_dual_list_trusted_domains: trusted_domains returned NT_STATUS_INVALID_PARAMETER