Chen Shapira wrote:
> >
> > What are the option available today of making two identical servers
> > (both for example www.domain.com) and when one crash the
> > second will be
> > available or even better they both will share the load.
> >
> > And what if I want to put the Secondary server on other network so it
> > will be available if the primary network is down ?
> >
>
> bit OT for the list but...
>
> a year ago I had the same problem, I called my ISP (i.e. Ira) and he said
> there are 2 options:
>
> 1) load balancer that dynamically routes traffic to best server. cost: circa
> 30,000$
> I don't remember vendor names now, so just search the web for load
> balalncers.
>
Load balancers prices have dropped considerably since then, you can get one for
a quarter of that price, admittedly not the most advanced. I reckon that's still
a bit too much for this list. It's still a better solution than DNS round robin,
both for failover reasons and better load balancing algorithms. Now if we have
dedicated servers, couldn't we get RadWare to pitch in or something for an
honourary mention (I don't really believe it will work from my personal
experience, but it's worth a try).
>
> 2) put 2 IP on the same name in the DNS, the round-robin algorithm takes
> over and each user will be routed to a diffrent machine, 50% chance of
> lending on the right one. cost:0$
>
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