KEMP is free loadbalancing software that runs on linux.
This would be your best bet. NAT to an internal virtual IP and setup two backend round robin servers.
This will allow you to also do a cookie insert to keep sessions on the same server.
Also you could use round robin dns (poor mans load balancing)
and instead of setting the IP here use your round robin A record. (Unless you have to use an IP there... Not sure about that one)
iptables -A PREROUTING -i eth0 -p tcp --dport 443 -m state --state NEW -m nth --counter 0 --every 3 --packet 0 -j DNAT --to-destination 192.168.0.2:443
Last edited by derekmapge; 01-03-2013 at 10:52 AM.