How to prevent single point of failure without reg. new domain?
 

Hello, what is the quickest way to setup DNS to prevent Single point of failure error (DNS in different geo location)?

In my case hosting.com is hosted in USA and on this server are registered nameservers:
ns1.hosting.com
ns2.hosting.com

both nameservers are pointed to one IP where is website hosting.com hosted. The DNS records on that webserver for ns1 and ns2 points to server with United Kingdom IP.

Now when im having domain me.com , and using above mentioned nameservers, that is single point of failure

Can i prevent this failure without registering new domain name? I already have a Linux VPS that is unused and can serve as a DNS. But im unsure if/how is the easiest and simplest way to setup that while i dont need to change me.com domain nameservers (this domain is set to these:
ns1.hosting.com
ns2.hosting.com)

thank you

Easy
 

A second domain would not help, you need a clone of ns1 or ns2 (or clones of both) that will take over as primary and secondary DNS for your existing domain if your current ns1 becomes unavailable.

The purpose would be served if ns2 were a secondary fed by ns1 and was in a different location. Since that is not the case, ns3 and ns4, additional secondaries feeding from ns1, but in a different data center might do the job. They need different IP addresses, but to be able to take on the IP address of ns1. A manual process (run a script) solution would serve. Were you careful, you may be able to automate the takeover using heartbeat.