Is anyone using this service?

Interesting. Looks like they're run by TZO.com, the big DYN DNS company.

They really need a lot more technical information on their site. It's hard to determine how they're actually doing it, and where/how they're connected to the Internet.

Originally posted by bitserve
Interesting. Looks like they're run by TZO.com, the big DYN DNS company.

They really need a lot more technical information on their site. It's hard to determine how they're actually doing it, and where/how they're connected to the Internet.
I just find it hard to believe that it could work with the DNS propagation times etc...:eek:

UltraDNS sent me this earlier this week. Looks similar to the autofailover service.

http://now.eloqua.com/es.asp?s=124&EmailSave=44CA894CE85C43E392AF47750311F9C3&elq=87E0E931718F41F09D20C0D56B7C0AC1

I sent UltraDNS an email 3 days ago, asking them how this would work well, given DNS propagation times. I have not heard back yet.

i'm guessing that it works something like this:
you point your nameservers at their dns server.

it pings your server every say five minutes.

if its up it routes to server 1 on ip bla.bla.bl.bla

if its not then it routes to bla.bl.a.bl

it wouldn't take much more than a dns reboot to change the dns entry on the server, and as the nameservers remain the same there is no need to wait for the anoying updates to occur.

I understand techically how it would work. I guess I am concerned about other ISP dns servers with cached entries. They may not query my nameservers again for an hour, two hour, etc. They would have outdated information and then the auto failover would not work. Even if you set you TTL on your name servers lower, some ISP's won't honor really low values. Am I wrong or confused on this whole issue?

thats the problem with any dns service. there is a way around it though i forget how :rolleyes: