Hello all,
The question is not necessarily CentOS-specific - but there are lots of bright people on here, and - quite possibly - the final implementation will be on CentOS hence I figured I'd ask it here. Here is the situation.
I need to configure a Linux-based network load balancer (NLB) solution. The idea is this. Let us say I have a public facing load balancer machine with an public IP of, say, 50.50.50.50. It is to receive the traffic (let's say, HTTP traffic) and then route it to two private HTTP servers, let's say, 192.168.10.10 and 192.168.10.11. It has to have persistence - i.e., be state- and session-aware. If for whatever reason one of the servers goes down the remaining pool shares all the traffic in some fashion (be it eound robin, saturation based, whatever).
We have tried Vyatta ( http://vyatta.org/ ) and ZeroShell ( http://www.zeroshell.org/ ) and both are very good but their NLB seems to be externally facing (i.e., you have several internet connections and are trying to divide your traffic between them). What we need is an "internally facing" one, if I may say so.
Any advice on what may help us would be greatly appreciated.
Thanks.
Boris.