[CentOS] load balancer recommendations

Wed Jan 23 17:28:53 UTC 2013
Boris Epstein <borepstein at gmail.com>

Hello all,

Many thanks to everyone who responded with extremely helpful tips.

Reporting back that I implemented HAProxy on CentOS 6.3 and this works like
a charm - after I worked out a couple of HAProxy kinks.


On Sat, Jan 19, 2013 at 3:35 PM, Boris Epstein <borepstein at gmail.com> wrote:

> 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, It is to receive the traffic (let's
> say, HTTP traffic) and then route it to two private HTTP servers, let's
> say, and 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.