reply you inline.
2015-11-24 12:33 GMT+01:00 Marotta Lorenzo <lorenzo.maro...@repower.com>:
> Hello, greetings to everyone on the list.
>
>
>
> I’m trying to load balance SMTP traffic to a pair of Linux servers running
> postfix, and i have a couple of doubts about the implementation.
>
>
>
> First, i tried both a TCP and a L4xNAT type of farm (NAT mode) , which one
> is preferable?
>
>
L4xNAT is de candidate, TCP is deprecated.
>
>
> Secondly, i’ve seen that on the Postfix logs if the SMTP clients comes in
> thorught the Zen load balancer only the Zen machine IP address is logged;
> this way we loose the information about the sending SMTP client IP address
> and hostname. Is there any way to work around this issue?
>
>
>
It is because you are working with L4xNAT with NAT enabled, you should
configure DNAT mode, there is an explanation about NAT and DNAT in the
official documentation
http://www.zenloadbalancer.com/zlb-administration-guide-v305#L4xNATPROFILE_FARM
read about NAT and DNAT mode
> Maybe it is possible to configure some sort of logging on the Zen machine
> itself?
>
logging only recommended for troubleshooting, if you require to do that in
l4xnat profile then tcpdump is the trick.
>
>
> Thanks a lot, have a nice day!
>
> Lorenzo
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Give your users amazing mobile app experiences with Intel(R) XDK.
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Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
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