Running Web Server, How To Handle ISP Outage

Posted on 2010-11-29
Last Modified: 2012-05-10

We run a small web server in our office, using a pretty fast business grade cable connection (Time Warner).  

Occasionally, this connection drops out.  We have a backup DSL internet connection, and a router capable of fail-over.  So when our Time Warner goes out, the DSL automatically switches on, and this seems to work well.

Our issue is, our website is accessed via, and when the TW connection drops, the is still pointed to TW, not the DSL.

Is there anyway to have the domain roll-over as well?  

Question by:compsol1993
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Accepted Solution

SteveeB earned 500 total points
ID: 34230341
you have two options.

1. get a WAN load balancer that has built in DNS functions where the load balancer will answer with the proper IP address based on availability.

Here is a good one I use a lot.

2. Use a hosted service where you point your DNS to their IP and they forward it to your IP based on which IP is still up/accessible

These guys can do this.

Expert Comment

ID: 34230368
b.t.w with the first solution, you would have to make the point to IP of 1st ISP and point to IP address of 2nd ISP

Author Comment

ID: 34230656
Thanks for your feedback, on the DynDNS page, which service did you have in mind.  

Our router doesn't support the DNS functions, at least I don't think.  It's  Netgear Prosafe FVS336G.

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Expert Comment

ID: 34230747
no the netgear does not do the DNS part, it just deals with outbound load balancing.

I think the secondary DNS service.

I suggest you give them a call, they can tell you exactly which of their service they recommend.

Author Comment

ID: 34230791
Thanks Stevee,

Not to take this in a different direction, but there is a bit more to this than I originally explained.  The domain is not hosted at our location.  The primary domain server is a Win 2008 DNS server, that has a ptr to our external IP.  Is there anyway in Win 2008 DNS to setup a secondary pointer, that will auto-fail over.

If not, I'll go the DynDNS route, but would need to create a new domain.


Expert Comment

ID: 34230808
I don't think there is an auto-fail over in Windows DNS server for outside locations.

Author Closing Comment

ID: 34242911
Thanks again

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