AW: nginx as Loadbalancer, router + NAT

Sascha sk. Kain s.kain at
Tue Jul 29 16:55:17 MSD 2008

Yes correct! And to the server section I would add this lines:

server {
	listen # offical ip-adress 

And enable NAT/IP-Masquerading on this box.

Then I should have a Router/NAT/LoadBalancer with nginx. Correct?
I need the IP based Hash, to get always to the same private host!

Will there be any problems with the host headers or smt like this?

Best Regards


-----Ursprüngliche Nachricht-----
Von: owner-nginx at [mailto:owner-nginx at] Im Auftrag von Igor Sysoev
Gesendet: Dienstag, 29. Juli 2008 14:12
An: nginx at
Betreff: Re: nginx as Loadbalancer, router + NAT

On Tue, Jul 29, 2008 at 01:10:51PM +0200, Sascha sk. Kain wrote:

> we planing to switch our websites Loadbalancer to Nginx.
> Currently it is a Pound LB with around 1000-2000 connections/s and all Backend-Servers are in the same official Subnet.
> We want to make all Backend-Webservers private (192.168.x.x) and only the LB with an official IP address and NAT to the backends.
> Is this possible with nginx? I only see examples with
> Does NAT and routing use a lot more Load?

If I understand your question, you may set any addreses in upstream:

    upstream  backend {
        # and
        # and even
        server   unix:/tmp/socket;

Igor Sysoev

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