dyn netbios/ip map

[michelegonella at libero.it]

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>From      : crh at ubiqx.mn.org
To          : "michelegonella at libero.it" michelegonella at libero.it
Cc          : "samba-technical" samba-technical at lists.samba.org
Date      : Sat, 25 Oct 2003 11:26:31 -0500
Subject : Re: dyn netbios/ip map

> "michelegonella at libero.it" wrote:
> > 
> > Hi,
> > I need to write a daemon app to be run on a internet gateway
> > in order to set/unset iptables and traffic shaping rules based
> > on netbios names; after reading documentation and browsing
> > the the samba source code I am thinking of running just nmbd
> > on the gateway and from it to gather the informations needed.
> > The service should be designed to work in "almost any" windows
> > network architecture with mixed workgroups/domains and the
> > internal LAN could be subnetted.
> > What I want to ask is the easiest way of gathering a list of
> > netbios/ip_addr pairs relative to all the machines within the LAN
> > once smb.conf is set up correctly to map all the Domain Controllers
> > and Wins servers, plus of course what comes from broadcast registrations.
> > Actually I think I need something to poll with a settable refresh time.
> > Any ideas ?
> > Will it be in any cases unreliable ?
> > If possible I wouldn't try to patch nmbd, because I want to update it
> > as soon as new releases are coming.
> > 
> > thanks in advance for any help or suggestions.
> 
> I am not at all clear on what you are trying to accomplish here.  You don't
> explain why the gateway needs to know about NBT name registrations, or how
> the gateway will use that information (other than to say that you'll be
> updating iptables).
> 
> At a guess, I don't think that running nmbd will solve your problem unless
> you use nmbd as the WINS server for the network behind your gateway.  If
> nmbd is the WINS server, then you can look at the wins.dat file to see what
> names have been registered.  Otherwise, collecting such a list will be
> difficult.
> 
> Read:  http://ubiqx.org/cifs/NetBIOS.html
> 
> Lots of information on how NBT really works.
> 
> Chris -)-----
> 
> -- 
> "Implementing CIFS - the Common Internet FileSystem" ISBN: 013047116X
> Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
> jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development, uninq.
> ubiqx Team -- http://www.ubiqx.org/     -)-----   crh at ubiqx.mn.org
> OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh at ubiqx.org
>