[Samba] ntlm_auth works.... and then doesn't (winbind related)

[Adam Tauno Williams]

CentOS5, Samba 3.2.1

[root at gateway tmp]# service winbind restart
Shutting down Winbind services:                            [  OK  ]
Starting Winbind services:                                 [  OK  ]

$ ntlm_auth --username=adam --domain=BACKBONE --password=CORRECT 
NT_STATUS_OK: Success (0x0)

# test membership of group I'm in
$ ntlm_auth --username=adam --domain=BACKBONE --password=CORRECT \
   --require-membership-of=BACKBONE\\cis
NT_STATUS_OK: Success (0x0)

# test with wrong password
$ ntlm_auth --username=adam --domain=BACKBONE --password=fred123 \
  --require-membership-of=BACKBONE\\cis
NT_STATUS_WRONG_PASSWORD: Wrong Password (0xc000006a)

# test with wrong password and group I'm not in
$ ntlm_auth --username=adam --domain=BACKBONE --password=fred123 \
   --require-membership-of=BACKBONE\\elk
NT_STATUS_INVALID_PARAMETER: Invalid parameter (0xc000000d)

# Test with correct password
$ ntlm_auth --username=adam --domain=BACKBONE --password=CORRECT 
NT_STATUS_INVALID_PARAMETER: Invalid parameter (0xc000000d)

Hey!  That should have worked,  let's try again...

$ ntlm_auth --username=adam --domain=BACKBONE --password=CORRECT
NT_STATUS_INVALID_PARAMETER: Invalid parameter (0xc000000d)

# Bounce winbind
$ service winbind restart
Shutting down Winbind services:                            [  OK  ]
Starting Winbind services:                                 [  OK  ]

Works again!

$ ntlm_auth --username=adam --domain=BACKBONE --password=CORRECT
NT_STATUS_OK: Success (0x0)