How do I configure the DNS Failover and System Monitoring?
Posted by Darren Radsmith on 23 March 2004 05:32 AM

The DNS Failover service from DNS Made Easy is used to keep sites and web services online in the event of system or network issues. This is done by moving DNS traffic to another IP address that you have running at another location. This service can also be used to migrate traffic between redundant internet connections.

Here is how the DNS Failover services works:
DNS Failover services are configured on A records which point to IP addresses. DNS Made Easy's monitoring nodes check your primary IP address on a 2 to 4 minute monitoring window. You can setup the monitoring servers to check if your service is running on either TCP, UDP, HTTP, or HTTPS protocols, and on any port. As soon as your primary server fails to respond from at least two different geographic monitoring locations, your DNS is instantly updated on all DNS Made Easy name servers globally to point a secondary IP address as long as it does respond on the same port and protocol configured. You can specify up to 5 IP addresses for each of your host names.

Tutorials for different types of failover configuration are available on our help website:

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