thanks matt,
i'll look into that
mike h
--- Matt Alexander <
lowbassman@gmail.com> wrote:
> On Fri, 26 Nov 2004 00:11:14 -0800 (PST), mike hoy
> <michael_hoy_636@yahoo.com> wrote:
>
> > I'm wondering if there is such a thing as a
> javascript
> > that can redirect to one site or another depending
> on
> > whether the default one is actually working.
> >
> > example
> >
> > www.domain.com --> redirector
> >
> > redirector tests to see if site1 is up if it is
> > then --> site 1
> > else --> site 2 (backup site)
>
> Yes, you can have a system that proxies on behalf of
> others. Of
> course, now that system has become the weak link.
> This could be done
> with a script that checks if www.domain.com is
> available and then uses
> iptables DNAT/SNAT to transparently forward traffic
> to whichever host
> is up.
>
> It's too bad DNS doesn't have the same failover
> functionality for A
> records as it does for MX records.
>
> Another option is to use a program that monitors
> your web server from
> an external location. If the program detects that
> the main host is
> down then it would update the A record in DNS (with
> a small TTL value)
> to point to a different host.
>
> An interesting idea might be to write a Firefox
> extension that would
> be a bookmark for your website. When clicked, it
> would then do a
> quick check for the availability of your site and
> change the URL, if
> necessary, that is passed to Firefox.
> ~M
>
> --
> Get Firefox!
> http://www.mozilla.org/products/firefox/
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