loadbalncer using iptables

loadbalncer using iptables

[Muruganandam]

Dear all,

I build a loadbalancer using DNAT.
iptables -t nat -A PREROUTING -s 10.10.10.254 -d 192.168.0.3 -p tcp 
--dport 80 -j DNAT --to-destnation 172.18.10.1
i need to use anonther real server 172.18.10.2 for the next request in a 
round robin fashion.

i wrote a script for the same using cron tab.but it is working.
but what i need is i want to use the roundrobin fashion ,when http 
request comes.how to do that.

Re: loadbalncer using iptables

[Thornton Prime]

> I build a loadbalancer using DNAT.
> iptables -t nat -A PREROUTING -s 10.10.10.254 -d 192.168.0.3 -p tcp
> --dport 80 -j DNAT --to-destnation 172.18.10.1
> i need to use anonther real server 172.18.10.2 for the next request in a
> round robin fashion.

You can add a match like "-m nth --every 2", but you probably want to
look at LinuxVirtualServer.org, which implements a real load balancer
using netfilter. There is support for peristent connections, weights,
adding in health checks, and all sorts of other features.

thornton