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Re: [lvs-users] LVS-NAT in Linux 2.6

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] LVS-NAT in Linux 2.6
From: Joseph Mack NA3T <jmack@xxxxxxxx>
Date: Sat, 5 Sep 2009 10:57:35 -0700 (PDT)
On Sat, 5 Sep 2009, Nick Couchman wrote:

> Actually, since its NAT, the realservers get an IP address 
> on another subnet that's exclusive to the NAT setup.

the realservers are on a different network and the only 
intervening machine is the director. Presumably the other 
windows machines are on the VIP network.

> Then the IPVS director does the NAT and routing, sending 
> the requests and responses out to the rest of the network 
> with its own IP address.  The issue I'm running into is 
> that requests for Windows domain stuff in NT4 domains is 
> done of UDP ports 137 and 138.  There's an in-kernel 
> conntrack helper for requests on port 137, but not port 
> 138.  This means that when the NT servers send responses 
> to WINS requests on port 138 the IPVS director does not 
> know what to do with these responses, so they just get 
> discarded.

I don't know a lot about this, so this is just a mad idea. 
If you set your director up to be a samba server, can this 
be used to link the realservers to the rest of the machines 
on the VIP network?

Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!

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