Rackspace Cloud DNS overview
The Rackspace Cloud DNS infrastructure is a globally-distributed Anycast network. Rackspace currently has DNS servers located in Texas, Virginia, Illinois, and London. Within each data center, we split up our name servers so that we have no single point of failure in front of our DNS servers.
By using Anycast, we broadcast IP addresses from each location, which gives us the following advantages:
- The DNS queries generally go to the geographically closest name servers. This gives faster results no matter where the queries originate.
- If an entire data center fails, or even if all of the DNS servers within a specific data center fail, the DNS queries automatically start going to the next best location.
Next steps: Rackspace Cloud DNS - Available Features
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