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Re: carp and dead daemon

On Thu, Jul 31, 2008 at 04:32:13PM -0400, matthew sporleder wrote:
> On Thu, Jul 31, 2008 at 3:57 PM, Emmanuel Dreyfus <> 
> wrote:
> > matthew sporleder <> wrote:
> >
> >> Have you considered using something like pen (pkgsrc /net/pen) for
> >> your services instead?
> >
> > If the service is SMTP, then having the real sender IP (and not pen load
> > balancer's one) is important for spam filtering,
> This is a common problem with load balancers and proxies

Only ones which suck.  Load balancers which don't suck can proxy connections
at the application layer _without_ changing the source IP address seen by
the ultimate server.

(Disclosure: I work for one of the several load balancer vendors whose
 products do not suck, at least not this way.)


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