DNS Failover

It helps the application or network services remain accessible in the event of outage. The failover updates the DNS records according to services' availability.
It provides you high availability.

How works?

• It checks the availability of services regularly by using the health checks.
• The health checks are like the regular requests coming from clients.
• In addition you can specify the sources of health checks. If your customers are based in Europe, you can define health checks based on European cities.
• It updates the DNS records to another working service which is predefined IP or host when it determines an outage.
• Simply you define a primary/secondary system.

Advantages

• It forwards the traffic to always running system.
• Thanks to DNS failover your customers don't face with an issue or minimal while connecting your services. So you don't lose customers.
• You can cover the SLA as much as possible. And business happy :)

Use Cases

• The master servers of SQL database management systems.
• Web services for a location
• Network services like dns, smtp, ldap.