NGinx Load Balancing

[Payam Chychi]

On Thu, Apr 30, 2009 at 11:29 AM, Payam Chychi <pchychi at gmail.com> wrote:
> Hey Guys,
>
> Question, How can you create an nginx proxy server so it uses
> x-forward-header to load balance connections to its downstream web
> servers?
> Im using a nginx load balancer and attaching x-forward-header down to
> the load balaning farm which is using ipvs/keepalived which then load
> balances the traffic locally to a iis / apache cluster
>
> issue is that from my nginx proxy to the ipvs LB as i use SNAT and the
> ipvs is only layer4. When a client re-establishes his connection
> though the nginx proxy, the system will change its src ip at random
> and if there was previously another connection using that
> src_ip:dst_port, then the IPVS will assign it to the new user...
> session jacking
>
> I am thinking that the issue could be solved by placing an nginx load
> balancer in front of the ipvs and allowing nginx to load balance
> traffic based on the x-forward-header.. however, this is something
> that I am not sure how to do.
>
> any insight would greatly be appreciated
>
> --
> Payam Tarverdyan Chychi
> Network Security Specialist / Network Engineer
>


Any ideas? I would greatly appreciate any insight

Thanks,
-- 
Payam Tarverdyan Chychi
Network Security Specialist / Network Engineer