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very very weird problem, Samba completely broken

Eric Evans escreveu:
This is very strange and frustrating. Our users complained that they weren't able to get ANY Samba access, not even being able to map a network drive

What that means? Not beeing able to find the server and browse the network? Beeing able to find it and receiving access denied?

(forgetting for now about that domain logon thing for a while). So I went into the /etc/samba/smb.conf and took out all of the statements that had anything to do with domain controlling and net logons, basically restoring the smb.conf to the state it was in before I started messing around with all that domain controller stuff. To my chagrin, now NOTHING works on Samba, even with my original smb.conf! The only thing I'm doing differently now that I wasn't doing last week is I'm now running Samba 3 instead of Samba 2. Should I uninstall Samba 3 and put version 2 back on? This is too weird. Here's the error message I'm getting in my samba log file whenever I try to map a network drive on the Windows client:

[2006/07/07 17:24:18, 0] nmbd/nmbd_incomingrequests.c:process_name_refresh_request(183)
process_name_refresh_request: unicast name registration request received for name WORKGROUP<00> from IP 128.253.175.150 on subnet UNICAST_SUBNET.
[2006/07/07 17:24:18, 0] nmbd/nmbd_incomingrequests.c:process_name_refresh_request(184)
Error - should be sent to WINS server


Messing with name resolution in a running network can take some minutes to stabilize, to machines make elections, to server annouce theirselves to the network, to wrong entries expire in caches, etc. Sometimes you must reload the network configuration on the clients to get the new config, or change it manually.

In respect of the above error message, that I know (someone corrects me if Im wrong) unicast packets with name registrations are only accepted by WINS servers, to accept it without beeing a WINS server the packet must be a broadcast packet. Probably samba is complaining about that (a misconfiguration on how the clients are trying to register themselves). So the name resolution in your network will probably fail completely.

It seems that your Client VENUS tries to register itself to the WINS server it is configured to. Check what WINS server is configured using "ipconfig /all" in a DOS prompt.

If your client's WINS server is configured to be a.b.c.d and your domain PDC IP is a.b.c.d but the "wins server" parameter of smb.conf is set to "no" then it would seem logical that the error is "Should be sent to the WINS".

Please post your "ipconfig /all" output and your smb.conf file. 

Here's the output from the ipconfig /all:

Windows IP Configuration

        Host Name . . . . . . . . . . . . : cornell-emngrvm
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : phonetics.cornell.edu

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : phonetics.cornell.edu
Description . . . . . . . . . . . : 3Com 3C920 Integrated Fast Ethernet
Controller (3C905C-TX Compatible)
Physical Address. . . . . . . . . : 00-06-5B-95-8C-15
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 128.253.175.146
Subnet Mask . . . . . . . . . . . : 255.255.255.128
Default Gateway . . . . . . . . . : 128.253.175.129
DHCP Server . . . . . . . . . . . : 132.236.56.249
DNS Servers . . . . . . . . . . . : 132.236.56.250
128.253.180.2
Lease Obtained. . . . . . . . . . : Friday, July 07, 2006 5:14:05 PM
Lease Expires . . . . . . . . . . : Friday, July 07, 2006 6:14:05 PM

Here's the /etc/samba/smb.conf:

[global]
        socket address = 128.253.175.155
        socket options = TCP_NODELAY
        invalid users = bin daemon adm sync shutdown halt mail news uucp
        max log size = 100

        print command = /bin/lp -d%p %s; sleep 5; rm -f %s
        printer = 128_1
        printing = SYSV

        log file = /var/log/samba.log
        log level = 2
        max log size = 50
        debug timestamp = yes

[homes]
        browseable = no
        read only = no
        writeable = yes
        guest ok = no

I'm completely mystified as to why I keep getting these "Error - should be sent to WINS server" messages. If anyone has any suggestions I'd love to hear them. At this point it looks to me that Samba has somehow become broken beyond repair.

Eric


Node Type . . . . . . . . . . . . : Unknown?

I never saw that one, I dont have sure if it can have that value and work properly, this value says what is the order and inclusion (with its own nomenclature) of netbios name resolution (broadcast or WINS (a unicast packet, remember?)), searching the MS KBs I found this: http://support.microsoft.com/kb/310570

Try unsing "nbtstat -a yourserver" on the command line of the windows machine to see if it can list the table of names of the server (and see if netbios and name resolution is working).

Probably your client (or a lot of them) is making some confusion and isnt registering itself properly to the network.



Regards.

Edmundo Valle Neto

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