Win98 domain logons unreliable

[Wil Cooley]

I've got Samba 2.0.6 set up for domain logons, and they kinda work.
However, about 2 out of 3 times it doesn't work on the first try.
Almost always, my log on succeeds if I continue trying, usually 2-5
more times.  The workstation is Windows 98.  I can't roll this out to
my clients until I can get this to work every time, on the first try.
I've looked through the list archives, and I see some mention of problems
without having reverse DNS, which I do have, and some problems with
NT servers on the network, which I have none of, I think (and tcpdump
doesn't show any traffic between the client and any other servers,
but I'm on switched Ethernet, so I might not be seeing everything).

It seems as if the client doesn't have some information that it should
or is not certain that my Samba server is the correct server, because
the conversation between the two appears to be the same.  I've also set
the log file to be %m.log, and watching the log for this particular host
shows no traffic.

Here's a sample of the tcpdump output:

18:16:47.085661 eth0 < win98-client.netbios-ns > samba-server.netbios-ns:NBT UDP PACKET(137): REGISTRATION; REQUEST; UNICAST
18:16:47.085823 eth0 > samba-server.netbios-ns > win98-client.netbios-ns:NBT UDP PACKET(137): REGISTRATION; POSITIVE; RESPONSE; UNICAST
18:16:47.581506 eth0 < win98-client.netbios-ns > samba-server.netbios-ns:NBT UDP PACKET(137): RELEASE; REQUEST; UNICAST
18:16:47.581668 eth0 > samba-server.netbios-ns > win98-client.netbios-ns:NBT UDP PACKET(137): RELEASE; POSITIVE; RESPONSE; UNICAST
18:16:48.559052 eth0 B win98-client.netbios-dgm > 10.0.0.255.netbios-dgm: NBT UDP (138)
18:16:48.559297 eth0 > samba-server.netbios-dgm > win98-client.netbios-dgm: NBT UDP (138)
18:16:48.560108 eth0 < win98-client.netbios-ns > samba-server.netbios-ns:NBT UDP PACKET(137): REGISTRATION; REQUEST; UNICAST
18:16:48.560270 eth0 > samba-server.netbios-ns > win98-client.netbios-ns:NBT UDP PACKET(137): REGISTRATION; POSITIVE; RESPONSE; UNICAST
18:16:48.560304 eth0 < win98-client.1036 > samba-server.netbios-ssn: S 14544700:14544700(0) win 8192 <mss 1460,nop,nop,sackOK>
18:16:48.560339 eth0 > samba-server.netbios-ssn > win98-client.1036: S 2925412821:2925412821(0) ack 14544701 win 32120 <mss 1460,nop,nop,sack OK> (DF)
18:16:48.560678 eth0 < win98-client.1036 > samba-server.netbios-ssn: .  1:1(0) ack 1 win 8760
18:16:48.560810 eth0 < win98-client.1036 > samba-server.netbios-ssn: P 1:73(72) ack 1 win 8760>>> NBT

And my smb.conf looks like:

[global]
workgroup               = WORKGROUP
server string           = SMB Server
security                = user
log level               = 2
load printers           = yes
guest account           = guest
log file                = /var/log/samba/log
log file                = /var/log/samba/clients/%m.log
max log size            = 10240
#socket options                 = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
#wins support           = yes
local master            = yes
domain master           = yes
preferred master        = yes
domain logons           = yes
os level                = 65
dns proxy               = no
encrypt passwords       = true
browseable              = yes
map to guest            = Bad Password
load printers           = yes
printcap name           = /etc/printcap
logon script            = logon.bat
time server             = yes
password level          = 10
username level          = 10

[netlogon]
comment                 = Domain Logon Service
path                    = /home/samba/netlogon
# public                        = no
writable                = no
browsable               = no

# Other shares clipped

-- 
W. Reilly Cooley                         wcooley at nakedape.cc
Naked Ape Consulting                      http://nakedape.cc
LNXS: Linux/GNU for servers, networks, and   http://lnxs.org
people who take care of them.  *Now with integrated crypto!*
irc.openprojects.net                                   #lnxs

The public demands certainties;  it must be told definitely and a bit
raucously that this is true and that is false.  But there are no certainties.
		-- H.L. Mencken, "Prejudice"
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