DNS Failover

Failover is a solution that keeps websites and applications online in the event of a system or network failure via backup resources.

To provide redundancy for a domain’s systems and networks.

For example purposes, let’s say the main IP address for your domain is 2.2.2.2. A Failover strategy would be to have two or more backup IP addresses that traffic can be redirected to if the main IP is down. So, 2.2.2.2 fails over to 3.3.3.3, and 3.3.3.3 fails over to 4.4.4.4, and so on.

Failover provides redundancy for a domain’s internal networks and systems, whereas Secondary DNS is used to ensure you have provider redundancy in the event your primary provider experiences an outage.

Failover is a backup solution for when an IP/host becomes unavailable. High availability pertains to your server/network or provider’s ability to remain accessible and online.

In Constellix, Failover is monitored through our Sonar Performance Monitoring system, which performs continual health checks on your resources

Our Sonar Performance Monitoring service is designed to detect outages or unhealthy resources as they happen. Once an issue is detected, Sonar immediately verifies the health of your backup resources and begins rerouting traffic to the next healthy resource. The actual time Failover takes to complete varies depending on your configuration choices.

This type of IP can be moved from one server or service to another without disruption of service.

With Failover configured, your web traffic is automatically redirected to a backup IP or host if your primary resource goes down. Failover does not prevent provider outages.

A, AAAA, CNAME, and ANAME records.

Absolutely! Failover can be used with any of our GeoIP services, such as Round Robin, ITO Latency load balancing, IP Filters, Global Traffic Director, and more.

Failover is a free service to configure. However, you will be responsible for the cost of the associated health checks and any queries answered by the Failover record(s).