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From: francois on 4 Mar 2010 12:48
Hi everybody,

In this page :

http://technet.microsoft.com/en-us/library/bb727013.aspx

I can read this: "Unlike versions of Windows prior to
Windows 2000, file and printer sharing with Windows 2000,
Windows XP, or Windows Server 2003 can operate without the
use of NetBT."

Yes indeed, if a disabled "NetBios over TCP" *in* *my*
*network* *adaptater* (>Properties>clicking
Advanced>clicking the WINS etc), I can use file sharing in a
network with Windows 2000 server and XP Pro for the client
stations, and with just TCP/IP + DNS.

But, If I read this page :

http://technet.microsoft.com/en-us/library/ms143696(SQL.90).aspx

I can read this: "This procedure disables the netbt.sys
driver. The WINS tab of the Advanced TCP/IP Settings dialog
box contains a Disable NetBIOS over TCP/IP option. Selecting
this option only disables the NetBIOS Session Service (which
listens on TCP port 139). It does not disable NetBIOS
completely."

Ok, so, I disabled "NetBios over TCP" as the previous link
indicates (>Device Manager etc). But in this case, the file
sharing doesn't work. Even if I just disabled the "TCP/IP
NetBIOS Helper Service", the file sharing doesn't work either.

According to this page, It's logical because (I quote) "This
disables the SMB direct host listener on TCP/445 and UDP
445" and If I have correctly understood, SMB is an
application overlay which is used for file sharing. But are
SMB and NetBios the same thing? This is not clear for me.

Always according to this page, (I quote) "The WINS tab of
the Advanced TCP/IP Settings dialog box contains a Disable
NetBIOS over TCP/IP option. Selecting this option only
disables the NetBIOS Session Service (which listens on TCP
port 139). It does not disable NetBIOS completely." It's
curious, because I made a test and listened the traffic of
my network adaptater, and there is no broadcast of
announcement ("Hello, my NetBios name is PC01!") and I feel
as if this option disables rather the "NetBios Names
traffic" than the "NetBIOS Session Service".

The purpose of my questions is not pratical but just to
understand. Well, all this is not clear for me and,
according to my numerous researchs, I'm not the only one. So:

1) What is the difference between NetBios and SMB? I precise
that I'm not a specialist of network overlays but is it
possible to have precise explanations or links to precise
explanations.

2) How does a NetBios application work (like net view
\\PC01) without NBT?

3) Is it possible to use file sharing with NBT totally
disabled (>Device Manager etc)? If it is, how?

Sorry for my (too) long message and thanks in advance for
your help.




--
Fran�ois Lafont
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