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NGinx Load Balancing

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349.gif 912 bytes open | download 张立冰 05/01/2009 Read message
Payam Chychi
April 30, 2009 02:29PM
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
Subject Author Posted

NGinx Load Balancing

Payam Chychi April 30, 2009 02:29PM

Re: NGinx Load Balancing

Payam Chychi April 30, 2009 10:48PM

Re: NGinx Load Balancing Attachments

张立冰 May 01, 2009 10:29AM



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