[lvs-users] ipvs or apache/mod_proxy/mod_balancer

Olaf Krische public at ecopatz.de
Wed Jul 1 14:13:43 BST 2009


Joseph Mack wrote:
> On Tue, 30 Jun 2009, Olaf Krische wrote:
>> Okay, i will try this out. Tho, i am not a big fan of giving each squid
>> an
>> IP. I do not own a big block.
> LVS-DR realservers have only private IPs

Okay, hereby i out myself as fresh and being totally stunned about the

This is my config that works so far:

load balancer:

echo 1 > /proc/sys/net/ipv4/ip_forward
ipvsadm -A -t $VIP:80 -s wlc
ipvsadm -a -t $VIP:80 -r $RIP1 -g
ipvsadm -a -t $VIP:80 -r $RIP2 -g

real server: 

iptables -t nat -A PREROUTING -p tcp -d $VIP --dport 80 -j REDIRECT
--to-port 80

So, when i do netstat, i see something like that:

tcp        0      0

But when i see the response coming back to my station, i see $VIP as the
source address.

Is this iptables, which rewrites from "" to "$VIP" again?

How is this possible? 

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