On Fri, 26 Nov 2004 00:11:14 -0800 (PST), mike hoy 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/ --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change you mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss