authentication errors - Unix Samba server, NT authentication

[jude.kean at ps.ge.com]

We are periodically having authorization errors from both Citrix Terminal
Servers and PC's to get to Unix home dirs.
Samba lives on an HP-UX 10.20 box.  The quick view of parameters are listed
below.  The errors are as follows:
 
[2000/11/06 12:56:30, 1] smbd/password.c:server_validate(1131)
  password server AUTHORIZER rejected the password
[2000/11/06 12:56:30, 0] passdb/smbpass.c:startsmbfilepwent(50)
  startsmbfilepwent: unable to open file /opt/samba_2.0.5a/private/smbpasswd
[2000/11/06 12:56:30, 0] passdb/passdb.c:iterate_getsmbpwnam(149)
  unable to open smb password database.
[2000/11/06 12:56:30, 1] smbd/password.c:pass_check_smb(504)
  Couldn't find user 'user1' in smb_passwd file.

This is intermittent, but pretty consistent.  Enterprise environment
supporting ~100+ users per Samba server.  Our HelpDesk keeps re-setting the
smbd, but this seems to be a pretty kludgy approach.  I tried to change to
security=DOMAIN, but can't get smbpasswd to run without
change_trust_account_passwd error.   Any help greatly appreciated.  
 
 
# Global parameters
[global]
workgroup = WORKGROUP
netbios name = SAMBA1
server string =  Samba File Server
security = SERVER
password server = AUTHORIZER
username map = /opt/samba_2.0.5a/private/usermap
log file = /opt/samba_2.0.5a/var/log.%m
max log size = 50
change notify timeout = 300
deadtime = 15
shared mem size = 5242880
socket options = TCP_NODELAY IPTOS_LOWDELAY
load printers = No

[homes]
comment = Home Directories
read only = No
browseable = No

 
Jude Kean
Software Administration Group
Logic Technology @ GEPS