NetBIOS-less SMB on port 445?

Nicolas Williams Nicolas.Williams at
Sun Jan 30 17:09:24 GMT 2000

On Sat, 29 Jan 2000, John E. Malmberg wrote:
> Luke Kenneth Casson Leighton <lkcl at> wrote: 
> > On Sat, 29 Jan 2000, Richard Sharpe wrote: 
> > 
> > 
> > > However, this NetBIOS-less SMB stuff is a major loss, as you can no 
> longer 
> > > do virtual servers. 
> > 
> > YES I KNOW. 
> > 
> > i xxxxing told microsoft about this and they xxxing refused to listen. 
> > 
> > > Samba virtual servers are neat and have lots of uses. 
> > 
> That capability is reserved for the Microsoft Enterprise Edition when 
> cluster server is installed. 
> Notice the price difference in this product from the standard Server prices. 
> If the base server could do the virtual server stuff, it could hurt sales of 
> the Enterprise edition, since normal servers could be arranged in a hot 
> standby configuration, with no failover of a disk farm needed. 


I suspect then that the port number for NetBIOS-less SMB may be obtained
from DNS SRV RRs, with 445 being the standard for SMB on single
personality servers.

If true then setting up virtual SMB servers without NetBIOS would
require multiple TCP listening sockets and appropriate DNS SRV RRs.

Can anyone confirm this?

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