WAN failover and Public DNS
Simon_Weel
Enthusiast ✭✭
TZ470W. We would like to have a failover-internet connection. So we got ourselves a second internet provider. Plugged the WAN cable of the second provider in port X2 and works fine. Now for the failover configuration. It's pretty straight-forward: How to configure failover when there are two or more WAN Interfaces?
It's not in effect yet, but this probably works fine for outbound traffic. Now for the inbound traffic, like mail. I guess I have to configure our public DNS server to redirect inbound traffic if one of the internet connections fails. Our webhoster offers basic public DNS services; no failover. So I had a look at Microsoft Azure DNS and it doesn't seem to offer failover services either.
Me thinks I need a public DNS provider offering failover capabilities? Or maybe there's a different solution?
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Arkwright
Community Legend ✭✭✭✭✭
Amazon AWS Route 53 DNS with a probe ["Health Check"] on some TCP service. You can either do active/standby failover like this or load balance by weighting the DNS entries.
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Answers
Ok, I will check Amazon AWS.
It looks like failover isn't a common thing?
Not sure what you mean, I've suggested a commercial off-the-shelf solution, little to no development required on your part. I assume there will be other DNS services with similar probe systems available.
Not sure what you mean
I thought failover / load balancing are a common thing. But there seem to be little public DNS providers to support such thing?
DurableDNS is another one.