Quote:
Originally Posted by cpanelerice
Services like EasyDNS are great when you have website content up and online in several geographical locations. You let them do the DNS work and you host your website data around the world. But if you're like most companies you only have each website hosted in one location. If that location goes down, it isn't going to be online anywhere else in the world. DNS will still work, but will point to an IP that isn't online. Since you have this single point of failure you can start scaling up and providing websites on other servers or host your own DNS, something I recommend everyone anyhow.  |
My intention is mainly DNS redundancy and faster resolution through geographically dispersed nameservers. By hosting everything including the nameservers on a single machine (the way a typical cPanel VPS does), if the server is down, the DNS is also down. Whereas, with third party DNS, even if the server went offline, the DNS would still function and help in resolution for at least the mail services. Also, having DNS redundancy could serve as the starting point for offering my customers the failover services you mentioned.
Of course, I could have redundant DNS by using cPanel DNS as well, but I would not have the benefits of an enterprise scale Anycast network with the DDoS protection it offers. And, frankly, it's far easier to set up EasyDNS or other managed DNS providers than deal with the complexities of DNS to set up a similar solution from scratch.