[Samba] NT logon ok but XP logon very slow

[Gerald Drouillard]

Roel Slegers wrote:
> Hi,
> 
> Our environment: HP-UX 11.00 server / Samba 3.0.21a as PDC / OpenLDAP backend
> 
> We're developping a migration from AS/U to a Samba PDC.
> Currently we have following problem: logging onto an NT4 workstation
> is almost instantaneous, but when logging onto an XP workstation, this
> happens:
> (1) We type the user and password in Windows logon.
> (2) Windows logon immediately accepts user and password, so far so good.
> (3) Windows says "Please wait... Loading your personal settings..."
> and we have to wait about one to two minutes. This is our problem.
> (4) After these on to two minutes, logon continuous  normally, and
> everything seems fine.
> 
> Furthermore, during the time that XP locks up, the corresponding smbd
> process eats up the server's CPU at almost 100%!
> 
> These are the log.smbd messages during the locking up of XP and smbd:
> ....
> [Fri Apr 21 15:25:29 2006
> , 0] rpc_server/srv_netlog_nt.c:_net_sam_logon(665)
>   _net_sam_logon: creds_server_step failed. Rejecting auth request
> from client RSL4 machine account RSL4$
> [Fri Apr 21 15:26:47 2006
> , 0] smbd/server.c:open_sockets_smbd(394)
>   open_sockets_smbd: accept: No buffer space available
> [Fri Apr 21 15:26:50 2006
> , 1] smbd/service.c:make_connection_snum(666)
>   rsl4 (10.5.71.168) connect to service netlogon initially as user veron004 (uid
> =517, gid=20) (pid 11053)
> ....
> 
> And as I already said: logging onto NT works fine.
> Any ideas?
You may want to look at the DNS/DHCP server.  If there is a 2003 DC and 
it is not the DNS/DHCP server then things can slow down.  I believe it 
is a reverse DNS issue.

-- 
Regards
--------------------------------------
Gerald Drouillard
Technology Architect
Drouillard & Associates, Inc.
http://www.Drouillard.ca