Hi guys,

I have configured squid server on two nodes. my requirement is to have a squid failover using RHCS.

RHCS is also configured with a virtual ip monitoring both the servers. virtual ip :- 192.168.1.100

Now the issue is that my virtual ip is configured on all browsers with port 8080 for proxy purpose. ie:192.168.1.100:8080

now the request coming from browsers with virtual ip and port number 8080 are properly directed to a active server but the request going out from the active squid server doesn't takes virtual ip it takes its on eth0 ip ie:192.168.1.1 of Active server and hits firewall due to which firewall blocks the ip and hence no page is displayed.

so what i have did was i have configured iptables postrouting which nats all the outgoing request from eth0 to virtual ip.

#iptables -t nat -A POSTROUTING -s 192.168.1.1 -o eth0 -j SNAT --to- 192.168.1.100

After this rule am able to receive web pages.

but cluster doesn't works at all. what i mean is if i try to shutdown active server the virtual ip doesn't shifts to passive server.

note:- before applying iptables the cluster works fine but cat get webpages as mention earlies.

please help guys if any body have any solution or have configured RHCS for the same.