High Availability of a web server on a distributed cloud

[Dave Cramer]

Well because I don't really own any of the IP's as well as they are on
disparate networks. Amazon's elastic IP solves my problem since I can
repoint it at will, however last time amazon had an outage their console
went down as well which made that impossible.

Dave

Dave Cramer


On Mon, Jan 14, 2013 at 3:26 PM, Fernando Duran <liberosec-FFYn/CNdgSA at public.gmane.org> wrote:

>
> >________________________________
> > From: Dave Cramer <davecramer-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>
> >To: tlug-lxSQFCZeNF4 at public.gmane.org
> >Sent: Monday, January 14, 2013 2:58:55 PM
> >Subject: Re: [TLUG]: High Availability of a web server on a distributed
> cloud
> >
> >
> >Well I don't want to use a single provider such as amazon. Which makes
> things more difficult.
>
> More difficult how? if it's because you're more dependent of
> a particular provider/solution I understand.
>
>
> Cheers,
>
> ---------------------
> Fernando Duran
> http://www.fduran.com
>
>
>
> >
> >
> >So the problem is essentially how to duplicate their elastic ip's
> >
> >
> >
> >Dave Cramer
> >
> >
> >On Mon, Jan 14, 2013 at 2:51 PM, Fernando Duran <liberosec-FFYn/CNdgSA at public.gmane.org>
> wrote:
> >
> >If the application is HTTP a relatively simple solution is to use nginx
> as a load balancer
> http://blog.jsdelivr.com/2013/01/nginx-load-balancing-basics.html plus
> some hearbeat/monitoring to detect/alert when a node goes down.
> >>
> >>High availability is an excellent area to learn about
> networking/scripting/trade-off decisions etc but it's very hard to get
> right, esp. the first time. I think is very worth it using the cloud
> provider's solutions, like Amazon's (or Rackspace's) load balancers and
> autoscaling.
> >>
> >>---------------------
> >>Fernando Duran
> >>http://www.fduran.com
> >>
> >>
> >>>________________________________
> >>> From: Dave Cramer <davecramer-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>
> >>>To: tlug-lxSQFCZeNF4 at public.gmane.org
> >>>Sent: Monday, January 14, 2013 8:57:39 AM
> >>>Subject: [TLUG]: High Availability of a web server on a distributed
> cloud
> >>
> >>>
> >>>
> >>>It is relatively simple to distribute an application to a number of
> servers and use haproxy to switch ip's. What I can't figure out is how to
> switch make sure that the IP that points to ha-proxy can be moved easily if
> that machine fails ?
> >>>
> >>>
> >>>DNS round robin doesn't exactly work. I have a very limited
> understanding of BGP is it possible to do without BGP ?
> >>>
> >>>
> >>>
> >>>Dave Cramer
> >>>
> >>>
> >>
> >>--
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> >
> >
> >
> --
> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
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