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On Wed, Apr 13, 2005 at 01:23:49PM -0500, Jim Miller wrote:
> > Yes. Look at using fwmarks in conjunction with LVS. It is your friend.
> > A breif explanation I wrote about this is at:
> >
> > http://www.ultramonkey.org/3/topologies/ha-lb-eg-fwmark.html
> >
> > Note that LVS is really about load-balancing incoming requests.
> > If you want to handle outgoing requests you will need SNAT.
> > But I suspect you already have a good handle on that.
> >
> > --
> > Horms
>
> After reading the fwmark page, I was curious, would this work in a NON-NAT
> (DR) configuration? I haven't had a chance to experiment yet.
fwmarks work fine with LVS-DR, LVS-NAT and LVS-TUN.
Think of it like this. Normally LVS has some code
to inspect the destination IPadress and port of a packet,
and if it matches one of its virtual servers, it takes
that packet and load balances. If you fwmarks then
the matching is done by netfilter - which has more
sophisticated matching capabilities - and lvs just
looks to see if netfilter says a packet is for LVS.
However, weather LVS-DR will work for your setup,
that is another question.
> Thank you for all of your hard work with LVS and your Ultramonkey project.
> Your papers have been immensely helpful and informative Horms!
Thanks
--
Horms
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