Re: NetBIOS Messenger spam - how did it get in?

["Chris Berry" <compjma () hotmail com>]

> From: Damon McMahon <inst_karma () hotmail com>
> The gateway host of my small workgroup has just become
> a 'victim' of the recent spate of SPAM using the
> NetBIOS Messenger Service.
> The gateway is a Windows 2000 host which connects to
> the internet via an external IP dynamically assigned by
> my ISP, and to an internal network via a 192.168.0.0/24
> IP assigned by the Windows Internet Connection Sharing
> service.
> 2. If this is possible, is there any inexpensive
> [preferably free!] method of configuring Windows 2000
> (with or without ZA Pro) to filter packets on the basis
> of interface as well as IP address?

No problem, all you have to do is right click network places, select 
properties, right click on your external interface, select properties, 
select tcp/ip, click on properties, click the advanced button, select the 
options tab, select tcp/ip filtering, click the properties button, click on 
enable tcp/ip filtering on all adapters then select the protocols and ports 
you want available.  Just remember that an adapter and an interface are two 
different things and you shouldn't get confused.

Chris Berry
compjma () hotmail com
Systems Administrator
JM Associates

"Ok, so the servers are down, the lights are out, and all I have to work 
with is a roll of duct tape, a ball point pen, a lighter, and a twenty year 
old copy of emacs.  Where's the problem? "

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